Kotlin rewrite

app/build.gradle

@@ -1,5 +1,13 @@
 apply plugin: 'com.android.application'
 
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+apply plugin: 'kotlin-kapt'
+
+apply plugin: "org.jlleitschuh.gradle.ktlint"
+
 static def getPackageName() {
     return "org.linphone"
 }
@@ -10,7 +18,7 @@ static def firebaseEnabled() {
 }
 
 task getGitVersion() {
-    def gitVersion = "4.4.0"
+    def gitVersion = "5.0"
     def gitVersionStream = new ByteArrayOutputStream()
     def gitCommitsCount = new ByteArrayOutputStream()
     def gitCommitHash = new ByteArrayOutputStream()
@@ -41,69 +49,18 @@ task getGitVersion() {
     project.version = gitVersion
 }
 
-configurations {
-	customImpl.extendsFrom(implementation)
-}
-
-task linphoneSdkSource() {
-    doLast {
-        configurations.customImpl.getIncoming().each {
-            it.getResolutionResult().allComponents.each {
-                if (it.id.getDisplayName().contains("linphone-sdk-android")) {
-                    println 'Linphone SDK used is ' + it.moduleVersion.version + ' from ' + it.properties["repositoryName"]
-                }
-            }
-        }
-    }
-}
-
-///// Exclude Files /////
-
-def excludeFiles = []
-if (!firebaseEnabled()) {
-    excludeFiles.add('**/Firebase*')
-    println '[Push Notification] Firebase disabled'
-}
-// Remove or comment if you want to use those
-excludeFiles.add('**/XmlRpc*')
-excludeFiles.add('**/InAppPurchase*')
-
-def excludePackage = []
-
-excludePackage.add('**/gdb.*')
-excludePackage.add('**/libopenh264**')
-excludePackage.add('**/**tester**')
-excludePackage.add('**/LICENSE.txt')
-
-/////////////////////////
-
-repositories {
-    maven {
-        name "local linphone-sdk maven repository"
-        url file(LinphoneSdkBuildDir + '/maven_repository/')
-    }
-    maven {
-        name "linphone.org maven repository"
-        url "https://linphone.org/maven_repository"
-    }
-}
-
 project.tasks['preBuild'].dependsOn 'getGitVersion'
 project.tasks['preBuild'].dependsOn 'linphoneSdkSource'
 
 android {
-    lintOptions {
-        abortOnError false
-    }
-
     compileSdkVersion 29
+    buildToolsVersion "29.0.2"
     defaultConfig {
         minSdkVersion 23
         targetSdkVersion 29
-        versionCode 4400
+        versionCode 4300
         versionName "${project.version}"
         applicationId getPackageName()
-        multiDexEnabled true
     }
 
     applicationVariants.all { variant ->
@@ -114,12 +71,10 @@ android {
         // https://developer.android.com/studio/releases/gradle-plugin#3-6-0-behavior for extractNativeLibs
         if (variant.buildType.name == "release") {
             variant.getMergedFlavor().manifestPlaceholders = [linphone_address_mime_type: "vnd.android.cursor.item/vnd." + getPackageName() + ".provider.sip_address",
-                                    linphone_file_provider: getPackageName() + ".provider",
+                                                          linphone_file_provider: getPackageName() + ".fileprovider"]
-                                    extractNativeLibs: "false"]
         } else {
             variant.getMergedFlavor().manifestPlaceholders = [linphone_address_mime_type: "vnd.android.cursor.item/vnd." + getPackageName() + ".provider.sip_address",
-                                    linphone_file_provider: getPackageName() + ".debug.provider",
+                                                              linphone_file_provider: getPackageName() + ".debug.fileprovider"]
-                                    extractNativeLibs: "true"]
         }
     }
 
@@ -143,20 +98,21 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
 
             resValue "string", "sync_account_type", getPackageName() + ".sync"
-            resValue "string", "file_provider", getPackageName() + ".provider"
+            resValue "string", "file_provider", getPackageName() + ".fileprovider"
             resValue "string", "linphone_address_mime_type", "vnd.android.cursor.item/vnd." + getPackageName() + ".provider.sip_address"
 
             if (!firebaseEnabled()) {
                 resValue "string", "gcm_defaultSenderId", "none"
             }
         }
+
         debug {
             applicationIdSuffix ".debug"
             debuggable true
             jniDebuggable true
 
             resValue "string", "sync_account_type", getPackageName() + ".sync"
-            resValue "string", "file_provider", getPackageName() + ".debug.provider"
+            resValue "string", "file_provider", getPackageName() + ".debug.fileprovider"
             resValue "string", "linphone_address_mime_type", "vnd.android.cursor.item/vnd." + getPackageName() + ".provider.sip_address"
 
             if (!firebaseEnabled()) {
@@ -165,35 +121,44 @@ android {
         }
     }
 
-    sourceSets {
+    dataBinding {
-        main {
+        enabled = true
-            java.excludes = excludeFiles
+    }
+}
 
-            packagingOptions {
+repositories {
-                excludes = excludePackage
+    maven {
-            }
+        url file(LinphoneSdkBuildDir + '/maven_repository/')
-        }
     }
 
-    packagingOptions {
+    /*maven {
-        pickFirst 'META-INF/NOTICE'
+        url "https://linphone.org/maven_repository"
-        pickFirst 'META-INF/LICENSE'
+    }*/
-        exclude 'META-INF/MANIFEST.MF'
-    }
 }
 
 dependencies {
-    compileOnly 'org.jetbrains:annotations:19.0.0'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation "androidx.media:media:1.1.0"
+    implementation 'androidx.fragment:fragment-ktx:1.2.3'
+    implementation 'androidx.core:core-ktx:1.2.0'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.2.1'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.2.1'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation 'com.google.android:flexbox:2.0.0'
+    implementation 'com.github.bumptech.glide:glide:4.11.0'
+
     if (firebaseEnabled()) {
         implementation 'com.google.firebase:firebase-messaging:19.0.1'
     }
-    implementation 'androidx.media:media:1.2.0'
+
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
+    implementation 'org.linphone:linphone-sdk-android:4.4+'
-    implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'com.google.android:flexbox:1.1.0'
-    implementation 'com.github.bumptech.glide:glide:4.9.0'
-    implementation "org.linphone:linphone-sdk-android:4.5+"
 }
+
 if (firebaseEnabled()) {
     apply plugin: 'com.google.gms.google-services'
 }
@@ -210,12 +175,9 @@ task generateContactsXml(type: Copy) {
 }
 project.tasks['preBuild'].dependsOn 'generateContactsXml'
 
-apply plugin: "com.diffplug.gradle.spotless"
+ktlint {
-spotless {
+    android = true
-    java {
+    ignoreFailures = true
-        target '**/*.java'
-        googleJavaFormat('1.6').aosp()
-        removeUnusedImports()
-    }
 }
-project.tasks['preBuild'].dependsOn 'spotlessApply'
+
+project.tasks['preBuild'].dependsOn 'ktlintFormat'

app/contacts.xml

@@ -4,7 +4,7 @@
     <ContactsDataKind
         android:detailColumn="data3"
         android:detailSocialSummary="true"
-        android:icon="@drawable/linphone_logo"
+        android:icon="@drawable/linphone_logo_tinted"
         android:mimeType="vnd.android.cursor.item/vnd.%%PACKAGE_NAME%%.provider.sip_address"
         android:summaryColumn="data2" />
     <!-- You can't use @string/linphone_address_mime_type above ! You have to hardcode it... -->

app/proguard-rules.pro

@@ -1 +1,21 @@
--dontwarn org.apache.**
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/main/AndroidManifest.xml

@@ -1,222 +1,122 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="org.linphone"
+    package="org.linphone">
-    android:installLocation="auto">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.READ_CONTACTS" />
-    <!-- Needed for bluetooth headset -->
-    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
-    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <uses-permission android:name="android.permission.WAKE_LOCK" />
-
-    <uses-permission android:name="android.permission.VIBRATE" />
-    <uses-permission android:name="android.permission.CAMERA" />
-    <!-- Needed to allow Linphone to install on tablets, since android.permission.CAMERA implies android.hardware.camera and android.hardware.camera.autofocus are required -->
-    <uses-feature
-        android:name="android.hardware.camera"
-        android:required="false" />
-
-    <!-- Needed to be able to detect a GSM call and thus pause any active SIP call, and auto fill the phone number field in assistant -->
-    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-    <!-- Needed to be able to pick images from SD card to share in chat message -->
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <!-- Needed to store received images if the user wants to -->
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <!-- Needed to use our own Contact editor -->
     <uses-permission android:name="android.permission.WRITE_CONTACTS" />
-    <!-- Needed to route the audio to the bluetooth headset if available -->
-    <uses-permission android:name="android.permission.BLUETOOTH" />
-    <!-- Needed to pre fill the wizard email field (only if enabled in custom settings) -->
-    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
-    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-    <!-- Needed by the SDK to be able to use WifiManager.MulticastLock -->
-    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
-    <!-- Required for contacts sync account -->
-    <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
-    <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
-    <!-- Required if Android < 6.0 to be able to use AccountManager for contacts & email auto-fill in assistant -->
-    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
-    <!-- Needed for overlay widget and floating notifications -->
-    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
-    <!-- Needed for kill application yourself -->
-    <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
-    <!-- Needed for auto start at boot and to ensure the service won't be killed by OS while in call -->
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
-    <!-- Needed to get the current Do Not Disturb policy -->
-    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />
-    <!-- Needed for full screen intent in notifications -->
-    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
 
-    <supports-screens
+    <!-- Helps filling phone number and country code in assistant -->
-        android:anyDensity="true"
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-        android:largeScreens="true"
+
-        android:normalScreens="true"
+    <!-- Needed for auto start at boot and to ensure the service won't be killed by OS while in call -->
-        android:smallScreens="true"
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
-        android:xlargeScreens="true" />
+
+    <!-- Needed for full screen intent in incoming call notifications -->
+    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
+    <!-- To vibrate while incoming call -->
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <!-- Needed to shared downloaded files if setting is on -->
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="28" />
+
+    <!-- Both permissions below are for contacts sync account -->
+    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
+    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
+
+    <!-- Needed for overlay -->
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
 
     <application
+        android:name=".LinphoneApplication"
         android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:largeHeap="true"
         android:roundIcon="@mipmap/ic_launcher_round"
-        android:resizeableActivity="true"
+        android:theme="@style/AppTheme">
-        android:theme="@style/LinphoneStyle"
-        android:extractNativeLibs="${extractNativeLibs}"
-        android:requestLegacyExternalStorage="true">
-
-        <!-- Starting activities -->
 
         <activity
-            android:name=".activities.LinphoneLauncherActivity"
+            android:name=".activities.launcher.LauncherActivity"
-            android:noHistory="true">
+            android:noHistory="true"
+            android:theme="@style/LauncherTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
 
-        <!-- Main activities -->
+        <activity android:name=".activities.main.MainActivity"
+            android:windowSoftInputMode="adjustResize">
+            <nav-graph android:value="@navigation/main_nav_graph" />
 
-        <activity
-            android:name=".dialer.DialerActivity"
-            android:launchMode="singleTop">
-            <intent-filter>
-                <action android:name="android.intent.action.DIAL" />
-                <action android:name="android.intent.action.CALL" />
-                <action android:name="android.intent.action.CALL_PRIVILEGED" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:scheme="tel" />
-                <data android:scheme="sip" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.SENDTO" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:scheme="sip" />
-                <data android:scheme="imto" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="org.linphone.intent.action.CallLaunched" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
-        </activity>
-
-        <activity
-            android:name=".activities.AboutActivity"
-            android:noHistory="true"/>
-
-        <activity
-            android:name=".recording.RecordingsActivity"
-            android:noHistory="true"/>
-
-        <activity
-            android:name=".settings.SettingsActivity"/>
-
-        <activity
-            android:name=".chat.ChatActivity"
-            android:launchMode="singleTop">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-            </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.SEND" />
-
                 <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.OPENABLE" />
-
                 <data android:mimeType="text/*" />
                 <data android:mimeType="image/*" />
                 <data android:mimeType="audio/*" />
                 <data android:mimeType="video/*" />
                 <data android:mimeType="application/*" />
             </intent-filter>
+
             <intent-filter>
                 <action android:name="android.intent.action.SEND_MULTIPLE" />
-
                 <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.OPENABLE" />
-
                 <data android:mimeType="image/*" />
             </intent-filter>
-        </activity>
 
-        <activity
-            android:name=".contacts.ContactsActivity"
-            android:launchMode="singleTop">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.BROWSABLE" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="${linphone_address_mime_type}" />
             </intent-filter>
-        </activity>
 
-        <activity
-            android:name=".history.HistoryActivity"
-            android:launchMode="singleTop">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.DIAL" />
+                <action android:name="android.intent.action.CALL" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="tel" />
+                <data android:scheme="sip" />
             </intent-filter>
         </activity>
 
-        <!-- Call activities -->
+        <activity android:name=".activities.assistant.AssistantActivity"
+            android:windowSoftInputMode="adjustResize"/>
 
-        <activity
+        <activity android:name=".activities.call.CallActivity"
-            android:name=".call.CallIncomingActivity"
+            android:launchMode="singleTop"
+            android:showWhenLocked="true"
+            android:supportsPictureInPicture="true" />
+
+        <activity android:name=".activities.call.IncomingCallActivity"
             android:launchMode="singleTop"
             android:noHistory="true"
             android:showWhenLocked="true"
-            android:turnScreenOn="true"/>
+            android:turnScreenOn="true" />
 
-        <activity
+        <activity android:name=".activities.call.OutgoingCallActivity"
-            android:name=".call.CallOutgoingActivity"
             android:launchMode="singleTop"
-            android:noHistory="true"/>
+            android:noHistory="true" />
-
-        <activity
-            android:name=".call.CallActivity"
-            android:launchMode="singleTop"
-            android:showWhenLocked="true"
-            android:supportsPictureInPicture="true"/>
-
-        <!-- Assistant activities -->
-
-        <activity
-            android:name=".assistant.MenuAssistantActivity"/>
-        <activity
-            android:name=".assistant.AccountConnectionAssistantActivity"/>
-        <activity
-            android:name=".assistant.EmailAccountCreationAssistantActivity"/>
-        <activity
-            android:name=".assistant.EmailAccountValidationAssistantActivity"/>
-        <activity
-            android:name=".assistant.PhoneAccountCreationAssistantActivity"/>
-        <activity
-            android:name=".assistant.PhoneAccountValidationAssistantActivity"/>
-        <activity
-            android:name=".assistant.PhoneAccountLinkingAssistantActivity"/>
-        <activity
-            android:name=".assistant.GenericConnectionAssistantActivity"/>
-        <activity
-            android:name=".assistant.QrCodeConfigurationAssistantActivity"/>
-        <activity
-            android:name=".assistant.RemoteConfigurationAssistantActivity"/>
-        <activity
-            android:name=".assistant.EchoCancellerCalibrationAssistantActivity"/>
-
 
         <!-- Services -->
 
         <service
-            android:name=".service.LinphoneService"
+            android:name=".core.CoreService"
-            android:label="@string/service_name" />
+            android:foregroundServiceType="phoneCall"
+            android:stopWithTask="false"
+            android:label="@string/app_name" />
+
+        <service android:name="org.linphone.core.tools.firebase.FirebaseMessaging"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
 
         <service
-            android:name=".sync.SyncService"
+            android:name=".contact.DummySyncService"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.content.SyncAdapter" />
@@ -224,13 +124,13 @@
 
             <meta-data
                 android:name="android.content.SyncAdapter"
-                android:resource="@xml/syncadapter" />
+                android:resource="@xml/sync_adapter" />
             <meta-data
                 android:name="android.provider.CONTACTS_STRUCTURE"
                 android:resource="@xml/contacts" />
         </service>
 
-        <service android:name=".sync.AuthenticationService">
+        <service android:name=".contact.DummyAuthenticationService">
             <intent-filter>
                 <action android:name="android.accounts.AccountAuthenticator" />
             </intent-filter>
@@ -240,21 +140,11 @@
                 android:resource="@xml/authenticator" />
         </service>
 
-        <service android:name=".firebase.FirebaseMessaging"
-            android:enabled="true"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="com.google.firebase.MESSAGING_EVENT" />
-            </intent-filter>
-        </service>
-
         <!-- Receivers -->
 
-        <receiver android:name=".receivers.BootReceiver">
+        <receiver android:name=".core.CorePushReceiver">
             <intent-filter>
-                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <action android:name="org.linphone.core.action.PUSH_RECEIVED"/>
-                <action android:name="android.intent.action.ACTION_SHUTDOWN" />
-                <action android:name="android.intent.action.MY_PACKAGE_REPLACED" />
             </intent-filter>
         </receiver>
 
@@ -263,10 +153,10 @@
             android:enabled="true"
             android:exported="false" />
 
-        <receiver
+        <receiver android:name=".core.BootReceiver">
-            android:name=".receivers.AccountEnableReceiver">
             <intent-filter>
-                <action android:name="org.linphone.intent.ACCOUNTACTIVATE" />
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <action android:name="android.intent.action.ACTION_SHUTDOWN" />
             </intent-filter>
         </receiver>
 
@@ -283,4 +173,5 @@
         </provider>
 
     </application>
-</manifest>
+
+</manifest>

app/src/main/assets/assistant_default_values

@@ -21,12 +21,6 @@
     <entry name="stun_server" overwrite="true"></entry>
     <entry name="protocols" overwrite="true"></entry>
   </section>
-  <section name="sip">
-    <entry name="rls_uri" overwrite="true"></entry>
-  </section>
-  <section name="lime">
-    <entry name="x3dh_server_url" overwrite="true"></entry>
-  </section>
   <section name="assistant">
     <entry name="domain" overwrite="true"></entry>
     <entry name="algorithm" overwrite="true">MD5</entry>

app/src/main/assets/linphonerc_default

@@ -1,3 +1,6 @@
+
+## Start of default rc
+
 [sip]
 contact="Linphone Android" <sip:linphone.android@unknown-host>
 use_info=0
@@ -34,4 +37,6 @@ history_max_size=100
 
 [in-app-purchase]
 server_url=https://subscribe.linphone.org:444/inapp.php
-purchasable_items_ids=test_account_subscription
+purchasable_items_ids=test_account_subscription
+
+## End of default rc

app/src/main/assets/linphonerc_factory

@@ -1,7 +1,9 @@
 
-#
+## Start of factory rc
+
 #This file shall not contain path referencing package name, in order to be portable when app is renamed.
 #Paths to resources must be set from LinphoneManager, after creating LinphoneCore.
+
 [net]
 mtu=1300
 force_ice_disablement=0
@@ -36,4 +38,6 @@ prefer_basic_chat_room=1
 xmlrpc_url=https://subscribe.linphone.org:444/wizard.php
 
 [lime]
-lime_update_threshold=-1
+lime_update_threshold=-1
+
+## End of factory rc

app/src/main/java/com/android/vending/billing/IInAppBillingService.aidl

@@ -1,144 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.vending.billing;
-
-import android.os.Bundle;
-
-/**
- * InAppBillingService is the service that provides in-app billing version 3 and beyond.
- * This service provides the following features:
- * 1. Provides a new API to get details of in-app items published for the app including
- *    price, type, title and description.
- * 2. The purchase flow is synchronous and purchase information is available immediately
- *    after it completes.
- * 3. Purchase information of in-app purchases is maintained within the Google Play system
- *    till the purchase is consumed.
- * 4. An API to consume a purchase of an inapp item. All purchases of one-time
- *    in-app items are consumable and thereafter can be purchased again.
- * 5. An API to get current purchases of the user immediately. This will not contain any
- *    consumed purchases.
- *
- * All calls will give a response code with the following possible values
- * RESULT_OK = 0 - success
- * RESULT_USER_CANCELED = 1 - user pressed back or canceled a dialog
- * RESULT_BILLING_UNAVAILABLE = 3 - this billing API version is not supported for the type requested
- * RESULT_ITEM_UNAVAILABLE = 4 - requested SKU is not available for purchase
- * RESULT_DEVELOPER_ERROR = 5 - invalid arguments provided to the API
- * RESULT_ERROR = 6 - Fatal error during the API action
- * RESULT_ITEM_ALREADY_OWNED = 7 - Failure to purchase since item is already owned
- * RESULT_ITEM_NOT_OWNED = 8 - Failure to consume since item is not owned
- */
-interface IInAppBillingService {
-    /**
-     * Checks support for the requested billing API version, package and in-app type.
-     * Minimum API version supported by this interface is 3.
-     * @param apiVersion the billing version which the app is using
-     * @param packageName the package name of the calling app
-     * @param type type of the in-app item being purchased "inapp" for one-time purchases
-     *        and "subs" for subscription.
-     * @return RESULT_OK(0) on success, corresponding result code on failures
-     */
-    int isBillingSupported(int apiVersion, String packageName, String type);
-
-    /**
-     * Provides details of a list of SKUs
-     * Given a list of SKUs of a valid type in the skusBundle, this returns a bundle
-     * with a list JSON strings containing the productId, price, title and description.
-     * This API can be called with a maximum of 20 SKUs.
-     * @param apiVersion billing API version that the Third-party is using
-     * @param packageName the package name of the calling app
-     * @param skusBundle bundle containing a StringArrayList of SKUs with key "ITEM_ID_LIST"
-     * @return Bundle containing the following key-value pairs
-     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
-     *              failure as listed above.
-     *         "DETAILS_LIST" with a StringArrayList containing purchase information
-     *              in JSON format similar to:
-     *              '{ "productId" : "exampleSku", "type" : "inapp", "price" : "$5.00",
-     *                 "title : "Example Title", "description" : "This is an example description" }'
-     */
-    Bundle getSkuDetails(int apiVersion, String packageName, String type, in Bundle skusBundle);
-
-    /**
-     * Returns a pending intent to launch the purchase flow for an in-app item by providing a SKU,
-     * the type, a unique purchase token and an optional developer payload.
-     * @param apiVersion billing API version that the app is using
-     * @param packageName package name of the calling app
-     * @param sku the SKU of the in-app item as published in the developer console
-     * @param type the type of the in-app item ("inapp" for one-time purchases
-     *        and "subs" for subscription).
-     * @param developerPayload optional argument to be sent back with the purchase information
-     * @return Bundle containing the following key-value pairs
-     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
-     *              failure as listed above.
-     *         "BUY_INTENT" - PendingIntent to start the purchase flow
-     *
-     * The Pending intent should be launched with startIntentSenderForResult. When purchase flow
-     * has completed, the onActivityResult() will give a resultCode of OK or CANCELED.
-     * If the purchase is successful, the result data will contain the following key-value pairs
-     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
-     *              failure as listed above.
-     *         "INAPP_PURCHASE_DATA" - String in JSON format similar to
-     *              '{"orderId":"12999763169054705758.1371079406387615",
-     *                "packageName":"com.example.app",
-     *                "productId":"exampleSku",
-     *                "purchaseTime":1345678900000,
-     *                "purchaseToken" : "122333444455555",
-     *                "developerPayload":"example developer payload" }'
-     *         "INAPP_DATA_SIGNATURE" - String containing the signature of the purchase data that
-     *                                  was signed with the private key of the developer
-     *                                  TODO: change this to app-specific keys.
-     */
-    Bundle getBuyIntent(int apiVersion, String packageName, String sku, String type,
-        String developerPayload);
-
-    /**
-     * Returns the current SKUs owned by the user of the type and package name specified along with
-     * purchase information and a signature of the data to be validated.
-     * This will return all SKUs that have been purchased in V3 and managed items purchased using
-     * V1 and V2 that have not been consumed.
-     * @param apiVersion billing API version that the app is using
-     * @param packageName package name of the calling app
-     * @param type the type of the in-app items being requested
-     *        ("inapp" for one-time purchases and "subs" for subscription).
-     * @param continuationToken to be set as null for the first call, if the number of owned
-     *        skus are too many, a continuationToken is returned in the response bundle.
-     *        This method can be called again with the continuation token to get the next set of
-     *        owned skus.
-     * @return Bundle containing the following key-value pairs
-     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
-     *              failure as listed above.
-     *         "INAPP_PURCHASE_ITEM_LIST" - StringArrayList containing the list of SKUs
-     *         "INAPP_PURCHASE_DATA_LIST" - StringArrayList containing the purchase information
-     *         "INAPP_DATA_SIGNATURE_LIST"- StringArrayList containing the signatures
-     *                                      of the purchase information
-     *         "INAPP_CONTINUATION_TOKEN" - String containing a continuation token for the
-     *                                      next set of in-app purchases. Only set if the
-     *                                      user has more owned skus than the current list.
-     */
-    Bundle getPurchases(int apiVersion, String packageName, String type, String continuationToken);
-
-    /**
-     * Consume the last purchase of the given SKU. This will result in this item being removed
-     * from all subsequent responses to getPurchases() and allow re-purchase of this item.
-     * @param apiVersion billing API version that the app is using
-     * @param packageName package name of the calling app
-     * @param purchaseToken token in the purchase information JSON that identifies the purchase
-     *        to be consumed
-     * @return 0 if consumption succeeded. Appropriate error values for failures.
-     */
-    int consumePurchase(int apiVersion, String packageName, String purchaseToken);
-}

app/src/main/java/org/linphone/LinphoneApplication.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone
+
+import android.app.Application
+import org.linphone.core.CoreContext
+import org.linphone.core.CorePreferences
+import org.linphone.core.Factory
+import org.linphone.core.LogCollectionState
+import org.linphone.core.tools.Log
+
+class LinphoneApplication : Application() {
+    companion object {
+        lateinit var corePreferences: CorePreferences
+        lateinit var coreContext: CoreContext
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        val appName = getString(R.string.app_name)
+        android.util.Log.i("[$appName]", "Application is being created")
+
+        Factory.instance().setLogCollectionPath(applicationContext.filesDir.absolutePath)
+        Factory.instance().enableLogCollection(LogCollectionState.Enabled)
+
+        corePreferences = CorePreferences(applicationContext)
+        corePreferences.copyAssetsFromPackage()
+
+        val config = Factory.instance().createConfigWithFactory(corePreferences.configPath, corePreferences.factoryConfigPath)
+        corePreferences.config = config
+
+        Factory.instance().setDebugMode(corePreferences.debugLogs, appName)
+
+        coreContext = CoreContext(applicationContext, config)
+        coreContext.start()
+        Log.i("[Application] Created")
+    }
+}

app/src/main/java/org/linphone/LinphoneContext.java

@@ -1,342 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone;
-
-import static android.content.Intent.ACTION_MAIN;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Build;
-import android.provider.ContactsContract;
-import java.util.ArrayList;
-import org.linphone.call.CallActivity;
-import org.linphone.call.CallIncomingActivity;
-import org.linphone.call.CallOutgoingActivity;
-import org.linphone.compatibility.Compatibility;
-import org.linphone.contacts.ContactsManager;
-import org.linphone.core.Call;
-import org.linphone.core.ConfiguringState;
-import org.linphone.core.Core;
-import org.linphone.core.CoreListenerStub;
-import org.linphone.core.Factory;
-import org.linphone.core.GlobalState;
-import org.linphone.core.LogLevel;
-import org.linphone.core.LoggingService;
-import org.linphone.core.LoggingServiceListener;
-import org.linphone.core.tools.Log;
-import org.linphone.mediastream.Version;
-import org.linphone.notifications.NotificationsManager;
-import org.linphone.service.LinphoneService;
-import org.linphone.settings.LinphonePreferences;
-import org.linphone.utils.DeviceUtils;
-import org.linphone.utils.LinphoneUtils;
-import org.linphone.utils.PushNotificationUtils;
-
-public class LinphoneContext {
-    private static LinphoneContext sInstance = null;
-
-    private Context mContext;
-
-    private final LoggingServiceListener mJavaLoggingService =
-            new LoggingServiceListener() {
-                @Override
-                public void onLogMessageWritten(
-                        LoggingService logService, String domain, LogLevel lev, String message) {
-                    switch (lev) {
-                        case Debug:
-                            android.util.Log.d(domain, message);
-                            break;
-                        case Message:
-                            android.util.Log.i(domain, message);
-                            break;
-                        case Warning:
-                            android.util.Log.w(domain, message);
-                            break;
-                        case Error:
-                            android.util.Log.e(domain, message);
-                            break;
-                        case Fatal:
-                        default:
-                            android.util.Log.wtf(domain, message);
-                            break;
-                    }
-                }
-            };
-    private CoreListenerStub mListener;
-    private NotificationsManager mNotificationManager;
-    private LinphoneManager mLinphoneManager;
-    private ContactsManager mContactsManager;
-    private final ArrayList<CoreStartedListener> mCoreStartedListeners;
-
-    public static boolean isReady() {
-        return sInstance != null;
-    }
-
-    public static LinphoneContext instance() {
-        if (sInstance == null) {
-            throw new RuntimeException("[Context] Linphone Context not available!");
-        }
-        return sInstance;
-    }
-
-    public LinphoneContext(Context context) {
-        mContext = context;
-        mCoreStartedListeners = new ArrayList<>();
-
-        LinphonePreferences.instance().setContext(context);
-        Factory.instance().setLogCollectionPath(context.getFilesDir().getAbsolutePath());
-        boolean isDebugEnabled = LinphonePreferences.instance().isDebugEnabled();
-        LinphoneUtils.configureLoggingService(isDebugEnabled, context.getString(R.string.app_name));
-
-        // Dump some debugging information to the logs
-        dumpDeviceInformation();
-        dumpLinphoneInformation();
-
-        sInstance = this;
-        Log.i("[Context] Ready");
-
-        mListener =
-                new CoreListenerStub() {
-                    @Override
-                    public void onGlobalStateChanged(Core core, GlobalState state, String message) {
-                        Log.i("[Context] Global state is [", state, "]");
-
-                        if (state == GlobalState.On) {
-                            for (CoreStartedListener listener : mCoreStartedListeners) {
-                                listener.onCoreStarted();
-                            }
-                        }
-                    }
-
-                    @Override
-                    public void onConfiguringStatus(
-                            Core core, ConfiguringState status, String message) {
-                        Log.i("[Context] Configuring state is [", status, "]");
-
-                        if (status == ConfiguringState.Successful) {
-                            LinphonePreferences.instance()
-                                    .setPushNotificationEnabled(
-                                            LinphonePreferences.instance()
-                                                    .isPushNotificationEnabled());
-                        }
-                    }
-
-                    @Override
-                    public void onCallStateChanged(
-                            Core core, Call call, Call.State state, String message) {
-                        Log.i("[Context] Call state is [", state, "]");
-
-                        if (mContext.getResources().getBoolean(R.bool.enable_call_notification)) {
-                            mNotificationManager.displayCallNotification(call);
-                        }
-
-                        if (state == Call.State.IncomingReceived
-                                || state == Call.State.IncomingEarlyMedia) {
-                            // Starting SDK 24 (Android 7.0) we rely on the fullscreen intent of the
-                            // call incoming notification
-                            if (Version.sdkStrictlyBelow(Version.API24_NOUGAT_70)) {
-                                if (!mLinphoneManager.getCallGsmON()) onIncomingReceived();
-                            }
-
-                            // In case of push notification Service won't be started until here
-                            if (!LinphoneService.isReady()) {
-                                Log.i("[Context] Service not running, starting it");
-                                Intent intent = new Intent(ACTION_MAIN);
-                                intent.setClass(mContext, LinphoneService.class);
-                                mContext.startService(intent);
-                            }
-                        } else if (state == Call.State.OutgoingInit) {
-                            onOutgoingStarted();
-                        } else if (state == Call.State.Connected) {
-                            onCallStarted();
-                        } else if (state == Call.State.End
-                                || state == Call.State.Released
-                                || state == Call.State.Error) {
-                            if (LinphoneService.isReady()) {
-                                LinphoneService.instance().destroyOverlay();
-                            }
-
-                            if (state == Call.State.Released
-                                    && call.getCallLog().getStatus() == Call.Status.Missed) {
-                                mNotificationManager.displayMissedCallNotification(call);
-                            }
-                        }
-                    }
-                };
-
-        mLinphoneManager = new LinphoneManager(context);
-        mNotificationManager = new NotificationsManager(context);
-
-        if (DeviceUtils.isAppUserRestricted(mContext)) {
-            // See https://firebase.google.com/docs/cloud-messaging/android/receive#restricted
-            Log.w(
-                    "[Context] Device has been restricted by user (Android 9+), push notifications won't work !");
-        }
-
-        int bucket = DeviceUtils.getAppStandbyBucket(mContext);
-        if (bucket > 0) {
-            Log.w(
-                    "[Context] Device is in bucket "
-                            + Compatibility.getAppStandbyBucketNameFromValue(bucket));
-        }
-
-        if (!PushNotificationUtils.isAvailable(mContext)) {
-            Log.w("[Context] Push notifications won't work !");
-        }
-    }
-
-    public void start(boolean isPush) {
-        Log.i("[Context] Starting, push status is ", isPush);
-        mLinphoneManager.startLibLinphone(isPush, mListener);
-
-        mNotificationManager.onCoreReady();
-
-        mContactsManager = new ContactsManager(mContext);
-        if (!Version.sdkAboveOrEqual(Version.API26_O_80)
-                || (mContactsManager.hasReadContactsAccess())) {
-            mContext.getContentResolver()
-                    .registerContentObserver(
-                            ContactsContract.Contacts.CONTENT_URI, true, mContactsManager);
-        }
-        if (mContactsManager.hasReadContactsAccess()) {
-            mContactsManager.enableContactsAccess();
-        }
-        mContactsManager.initializeContactManager();
-    }
-
-    public void destroy() {
-        Log.i("[Context] Destroying");
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            core.removeListener(mListener);
-            core = null; // To allow the gc calls below to free the Core
-        }
-
-        // Make sure our notification is gone.
-        if (mNotificationManager != null) {
-            mNotificationManager.destroy();
-        }
-
-        if (mContactsManager != null) {
-            mContactsManager.destroy();
-        }
-
-        // Destroy the LinphoneManager second to last to ensure any getCore() call will work
-        if (mLinphoneManager != null) {
-            mLinphoneManager.destroy();
-        }
-
-        // Wait for every other object to be destroyed to make LinphoneService.instance() invalid
-        sInstance = null;
-
-        if (LinphonePreferences.instance().useJavaLogger()) {
-            Factory.instance().getLoggingService().removeListener(mJavaLoggingService);
-        }
-        LinphonePreferences.instance().destroy();
-    }
-
-    public void updateContext(Context context) {
-        mContext = context;
-    }
-
-    public Context getApplicationContext() {
-        return mContext;
-    }
-
-    /* Managers accessors */
-
-    public LoggingServiceListener getJavaLoggingService() {
-        return mJavaLoggingService;
-    }
-
-    public NotificationsManager getNotificationManager() {
-        return mNotificationManager;
-    }
-
-    public LinphoneManager getLinphoneManager() {
-        return mLinphoneManager;
-    }
-
-    public ContactsManager getContactsManager() {
-        return mContactsManager;
-    }
-
-    public void addCoreStartedListener(CoreStartedListener listener) {
-        mCoreStartedListeners.add(listener);
-    }
-
-    public void removeCoreStartedListener(CoreStartedListener listener) {
-        mCoreStartedListeners.remove(listener);
-    }
-
-    /* Log device related information */
-
-    private void dumpDeviceInformation() {
-        Log.i("==== Phone information dump ====");
-        Log.i("DISPLAY NAME=" + Compatibility.getDeviceName(mContext));
-        Log.i("DEVICE=" + Build.DEVICE);
-        Log.i("MODEL=" + Build.MODEL);
-        Log.i("MANUFACTURER=" + Build.MANUFACTURER);
-        Log.i("ANDROID SDK=" + Build.VERSION.SDK_INT);
-        StringBuilder sb = new StringBuilder();
-        sb.append("ABIs=");
-        for (String abi : Version.getCpuAbis()) {
-            sb.append(abi).append(", ");
-        }
-        Log.i(sb.substring(0, sb.length() - 2));
-    }
-
-    private void dumpLinphoneInformation() {
-        Log.i("==== Linphone information dump ====");
-        Log.i("VERSION NAME=" + org.linphone.BuildConfig.VERSION_NAME);
-        Log.i("VERSION CODE=" + org.linphone.BuildConfig.VERSION_CODE);
-        Log.i("PACKAGE=" + org.linphone.BuildConfig.APPLICATION_ID);
-        Log.i("BUILD TYPE=" + org.linphone.BuildConfig.BUILD_TYPE);
-        Log.i("SDK VERSION=" + mContext.getString(R.string.linphone_sdk_version));
-        Log.i("SDK BRANCH=" + mContext.getString(R.string.linphone_sdk_branch));
-    }
-
-    /* Call activities */
-
-    private void onIncomingReceived() {
-        Intent intent = new Intent(mContext, CallIncomingActivity.class);
-        // This flag is required to start an Activity from a Service context
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        mContext.startActivity(intent);
-    }
-
-    private void onOutgoingStarted() {
-        Intent intent = new Intent(mContext, CallOutgoingActivity.class);
-        // This flag is required to start an Activity from a Service context
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        mContext.startActivity(intent);
-    }
-
-    private void onCallStarted() {
-        Intent intent = new Intent(mContext, CallActivity.class);
-        // This flag is required to start an Activity from a Service context
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        mContext.startActivity(intent);
-    }
-
-    public interface CoreStartedListener {
-        void onCoreStarted();
-    }
-}

app/src/main/java/org/linphone/LinphoneManager.java

@@ -1,635 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.os.PowerManager;
-import android.os.PowerManager.WakeLock;
-import android.telephony.PhoneStateListener;
-import android.telephony.TelephonyManager;
-import java.io.File;
-import java.util.Timer;
-import java.util.TimerTask;
-import org.linphone.call.AndroidAudioManager;
-import org.linphone.call.CallManager;
-import org.linphone.contacts.ContactsManager;
-import org.linphone.core.AccountCreator;
-import org.linphone.core.Call;
-import org.linphone.core.Call.State;
-import org.linphone.core.Core;
-import org.linphone.core.CoreListener;
-import org.linphone.core.CoreListenerStub;
-import org.linphone.core.Factory;
-import org.linphone.core.FriendList;
-import org.linphone.core.PresenceActivity;
-import org.linphone.core.PresenceBasicStatus;
-import org.linphone.core.PresenceModel;
-import org.linphone.core.ProxyConfig;
-import org.linphone.core.Reason;
-import org.linphone.core.Tunnel;
-import org.linphone.core.TunnelConfig;
-import org.linphone.core.tools.Log;
-import org.linphone.settings.LinphonePreferences;
-import org.linphone.utils.LinphoneUtils;
-import org.linphone.utils.MediaScanner;
-import org.linphone.utils.PushNotificationUtils;
-
-/** Handles Linphone's Core lifecycle */
-public class LinphoneManager implements SensorEventListener {
-    private final String mBasePath;
-    private final String mRingSoundFile;
-    private final String mCallLogDatabaseFile;
-    private final String mFriendsDatabaseFile;
-    private final String mUserCertsPath;
-
-    private final Context mContext;
-    private AndroidAudioManager mAudioManager;
-    private CallManager mCallManager;
-    private final PowerManager mPowerManager;
-    private final ConnectivityManager mConnectivityManager;
-    private TelephonyManager mTelephonyManager;
-    private PhoneStateListener mPhoneStateListener;
-    private WakeLock mProximityWakelock;
-    private final SensorManager mSensorManager;
-    private final Sensor mProximity;
-    private final MediaScanner mMediaScanner;
-    private Timer mTimer;
-
-    private final LinphonePreferences mPrefs;
-    private Core mCore;
-    private CoreListenerStub mCoreListener;
-    private AccountCreator mAccountCreator;
-
-    private boolean mExited;
-    private boolean mCallGsmON;
-    private boolean mProximitySensingEnabled;
-    private boolean mHasLastCallSasBeenRejected;
-    private Runnable mIterateRunnable;
-
-    public LinphoneManager(Context c) {
-        mExited = false;
-        mContext = c;
-        mBasePath = c.getFilesDir().getAbsolutePath();
-        mCallLogDatabaseFile = mBasePath + "/linphone-log-history.db";
-        mFriendsDatabaseFile = mBasePath + "/linphone-friends.db";
-        mRingSoundFile = mBasePath + "/share/sounds/linphone/rings/notes_of_the_optimistic.mkv";
-        mUserCertsPath = mBasePath + "/user-certs";
-
-        mPrefs = LinphonePreferences.instance();
-        mPowerManager = (PowerManager) c.getSystemService(Context.POWER_SERVICE);
-        mConnectivityManager =
-                (ConnectivityManager) c.getSystemService(Context.CONNECTIVITY_SERVICE);
-        mSensorManager = (SensorManager) c.getSystemService(Context.SENSOR_SERVICE);
-        mProximity = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
-        mTelephonyManager = (TelephonyManager) c.getSystemService(Context.TELEPHONY_SERVICE);
-        mPhoneStateListener =
-                new PhoneStateListener() {
-                    @Override
-                    public void onCallStateChanged(int state, String phoneNumber) {
-                        switch (state) {
-                            case TelephonyManager.CALL_STATE_OFFHOOK:
-                                Log.i("[Manager] Phone state is off hook");
-                                setCallGsmON(true);
-                                break;
-                            case TelephonyManager.CALL_STATE_RINGING:
-                                Log.i("[Manager] Phone state is ringing");
-                                setCallGsmON(true);
-                                break;
-                            case TelephonyManager.CALL_STATE_IDLE:
-                                Log.i("[Manager] Phone state is idle");
-                                setCallGsmON(false);
-                                break;
-                        }
-                    }
-                };
-
-        Log.i("[Manager] Registering phone state listener");
-        mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
-
-        mHasLastCallSasBeenRejected = false;
-        mCallManager = new CallManager(c);
-
-        File f = new File(mUserCertsPath);
-        if (!f.exists()) {
-            if (!f.mkdir()) {
-                Log.e("[Manager] " + mUserCertsPath + " can't be created.");
-            }
-        }
-
-        mMediaScanner = new MediaScanner(c);
-
-        mCoreListener =
-                new CoreListenerStub() {
-                    @SuppressLint("Wakelock")
-                    @Override
-                    public void onCallStateChanged(
-                            final Core core,
-                            final Call call,
-                            final State state,
-                            final String message) {
-                        Log.i("[Manager] Call state is [", state, "]");
-                        if (state == State.IncomingReceived
-                                && !call.equals(core.getCurrentCall())) {
-                            if (call.getReplacedCall() != null) {
-                                // attended transfer will be accepted automatically.
-                                return;
-                            }
-                        }
-
-                        if ((state == State.IncomingReceived || state == State.IncomingEarlyMedia)
-                                && getCallGsmON()) {
-                            if (mCore != null) {
-                                call.decline(Reason.Busy);
-                            }
-                        } else if (state == State.IncomingReceived
-                                && (LinphonePreferences.instance().isAutoAnswerEnabled())
-                                && !getCallGsmON()) {
-                            LinphoneUtils.dispatchOnUIThreadAfter(
-                                    new Runnable() {
-                                        @Override
-                                        public void run() {
-                                            if (mCore != null) {
-                                                if (mCore.getCallsNb() > 0) {
-                                                    mCallManager.acceptCall(call);
-                                                }
-                                            }
-                                        }
-                                    },
-                                    mPrefs.getAutoAnswerTime());
-                        } else if (state == State.End || state == State.Error) {
-                            if (mCore.getCallsNb() == 0) {
-                                // Disabling proximity sensor
-                                enableProximitySensing(false);
-                            }
-                        } else if (state == State.UpdatedByRemote) {
-                            // If the correspondent proposes video while audio call
-                            boolean remoteVideo = call.getRemoteParams().videoEnabled();
-                            boolean localVideo = call.getCurrentParams().videoEnabled();
-                            boolean autoAcceptCameraPolicy =
-                                    LinphonePreferences.instance()
-                                            .shouldAutomaticallyAcceptVideoRequests();
-                            if (remoteVideo
-                                    && !localVideo
-                                    && !autoAcceptCameraPolicy
-                                    && mCore.getConference() == null) {
-                                call.deferUpdate();
-                            }
-                        }
-                    }
-
-                    @Override
-                    public void onFriendListCreated(Core core, FriendList list) {
-                        if (LinphoneContext.isReady()) {
-                            list.addListener(ContactsManager.getInstance());
-                        }
-                    }
-
-                    @Override
-                    public void onFriendListRemoved(Core core, FriendList list) {
-                        list.removeListener(ContactsManager.getInstance());
-                    }
-                };
-    }
-
-    public static synchronized LinphoneManager getInstance() {
-        LinphoneManager manager = LinphoneContext.instance().getLinphoneManager();
-        if (manager == null) {
-            throw new RuntimeException(
-                    "[Manager] Linphone Manager should be created before accessed");
-        }
-        if (manager.mExited) {
-            throw new RuntimeException(
-                    "[Manager] Linphone Manager was already destroyed. "
-                            + "Better use getCore and check returned value");
-        }
-        return manager;
-    }
-
-    public static synchronized AndroidAudioManager getAudioManager() {
-        return getInstance().mAudioManager;
-    }
-
-    public static synchronized CallManager getCallManager() {
-        return getInstance().mCallManager;
-    }
-
-    public static synchronized Core getCore() {
-        if (!LinphoneContext.isReady()) return null;
-
-        if (getInstance().mExited) {
-            // Can occur if the UI thread play a posted event but in the meantime the
-            // LinphoneManager was destroyed
-            // Ex: stop call and quickly terminate application.
-            return null;
-        }
-        return getInstance().mCore;
-    }
-
-    /* End of static */
-
-    public MediaScanner getMediaScanner() {
-        return mMediaScanner;
-    }
-
-    public synchronized void destroy() {
-        destroyManager();
-        // Wait for Manager to destroy everything before setting mExited to true
-        // Otherwise some objects might crash during their own destroy if they try to call
-        // LinphoneManager.getCore(), for example to unregister a listener
-        mExited = true;
-    }
-
-    public void restartCore() {
-        Log.w("[Manager] Restarting Core");
-        mCore.stop();
-        mCore.start();
-    }
-
-    private void destroyCore() {
-        Log.w("[Manager] Destroying Core");
-        mCore.stop();
-        mCore.removeListener(mCoreListener);
-    }
-
-    private synchronized void destroyManager() {
-        Log.w("[Manager] Destroying Manager");
-        changeStatusToOffline();
-
-        if (mTelephonyManager != null) {
-            Log.i("[Manager] Unregistering phone state listener");
-            mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
-        }
-
-        if (mCallManager != null) mCallManager.destroy();
-        if (mMediaScanner != null) mMediaScanner.destroy();
-        if (mAudioManager != null) mAudioManager.destroy();
-
-        if (mTimer != null) mTimer.cancel();
-
-        if (mCore != null) {
-            destroyCore();
-            mCore = null;
-        }
-    }
-
-    public synchronized void startLibLinphone(boolean isPush, CoreListener listener) {
-        try {
-            mCore =
-                    Factory.instance()
-                            .createCore(
-                                    mPrefs.getLinphoneDefaultConfig(),
-                                    mPrefs.getLinphoneFactoryConfig(),
-                                    mContext);
-            mCore.addListener(listener);
-            mCore.addListener(mCoreListener);
-
-            if (isPush) {
-                Log.w(
-                        "[Manager] We are here because of a received push notification, enter background mode before starting the Core");
-                mCore.enterBackground();
-            }
-
-            mCore.start();
-
-            mIterateRunnable =
-                    new Runnable() {
-                        @Override
-                        public void run() {
-                            if (mCore != null) {
-                                mCore.iterate();
-                            }
-                        }
-                    };
-            TimerTask lTask =
-                    new TimerTask() {
-                        @Override
-                        public void run() {
-                            LinphoneUtils.dispatchOnUIThread(mIterateRunnable);
-                        }
-                    };
-            /*use schedule instead of scheduleAtFixedRate to avoid iterate from being call in burst after cpu wake up*/
-            mTimer = new Timer("Linphone scheduler");
-            mTimer.schedule(lTask, 0, 20);
-
-            configureCore();
-        } catch (Exception e) {
-            Log.e(e, "[Manager] Cannot start linphone");
-        }
-    }
-
-    private synchronized void configureCore() {
-        Log.i("[Manager] Configuring Core");
-        mAudioManager = new AndroidAudioManager(mContext);
-
-        mCore.setZrtpSecretsFile(mBasePath + "/zrtp_secrets");
-
-        String deviceName = mPrefs.getDeviceName(mContext);
-        String appName = mContext.getResources().getString(R.string.user_agent);
-        String androidVersion = org.linphone.BuildConfig.VERSION_NAME;
-        String userAgent = appName + "/" + androidVersion + " (" + deviceName + ") LinphoneSDK";
-
-        mCore.setUserAgent(
-                userAgent,
-                getString(R.string.linphone_sdk_version)
-                        + " ("
-                        + getString(R.string.linphone_sdk_branch)
-                        + ")");
-
-        // mCore.setChatDatabasePath(mChatDatabaseFile);
-        mCore.setCallLogsDatabasePath(mCallLogDatabaseFile);
-        mCore.setFriendsDatabasePath(mFriendsDatabaseFile);
-        mCore.setUserCertificatesPath(mUserCertsPath);
-        // mCore.setCallErrorTone(Reason.NotFound, mErrorToneFile);
-        enableDeviceRingtone(mPrefs.isDeviceRingtoneEnabled());
-
-        int availableCores = Runtime.getRuntime().availableProcessors();
-        Log.w("[Manager] MediaStreamer : " + availableCores + " cores detected and configured");
-
-        mCore.migrateLogsFromRcToDb();
-
-        // Migrate existing linphone accounts to have conference factory uri and LIME X3Dh url set
-        String uri = getString(R.string.default_conference_factory_uri);
-        for (ProxyConfig lpc : mCore.getProxyConfigList()) {
-            if (lpc.getIdentityAddress().getDomain().equals(getString(R.string.default_domain))) {
-                if (lpc.getConferenceFactoryUri() == null) {
-                    lpc.edit();
-                    Log.i(
-                            "[Manager] Setting conference factory on proxy config "
-                                    + lpc.getIdentityAddress().asString()
-                                    + " to default value: "
-                                    + uri);
-                    lpc.setConferenceFactoryUri(uri);
-                    lpc.done();
-                }
-
-                if (mCore.limeX3DhAvailable()) {
-                    String url = mCore.getLimeX3DhServerUrl();
-                    if (url == null || url.isEmpty()) {
-                        url = getString(R.string.default_lime_x3dh_server_url);
-                        Log.i("[Manager] Setting LIME X3Dh server url to default value: " + url);
-                        mCore.setLimeX3DhServerUrl(url);
-                    }
-                }
-            }
-        }
-
-        if (mContext.getResources().getBoolean(R.bool.enable_push_id)) {
-            PushNotificationUtils.init(mContext);
-        }
-
-        mProximityWakelock =
-                mPowerManager.newWakeLock(
-                        PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK,
-                        mContext.getPackageName() + ";manager_proximity_sensor");
-
-        resetCameraFromPreferences();
-
-        mAccountCreator = mCore.createAccountCreator(LinphonePreferences.instance().getXmlrpcUrl());
-        mCallGsmON = false;
-
-        Log.i("[Manager] Core configured");
-    }
-
-    public void resetCameraFromPreferences() {
-        Core core = getCore();
-        if (core == null) return;
-
-        boolean useFrontCam = LinphonePreferences.instance().useFrontCam();
-        String firstDevice = null;
-        for (String camera : core.getVideoDevicesList()) {
-            if (firstDevice == null) {
-                firstDevice = camera;
-            }
-
-            if (useFrontCam) {
-                if (camera.contains("Front")) {
-                    Log.i("[Manager] Found front facing camera: " + camera);
-                    core.setVideoDevice(camera);
-                    return;
-                }
-            }
-        }
-
-        Log.i("[Manager] Using first camera available: " + firstDevice);
-        core.setVideoDevice(firstDevice);
-    }
-
-    /* Account linking */
-
-    public AccountCreator getAccountCreator() {
-        if (mAccountCreator == null) {
-            Log.w("[Manager] Account creator shouldn't be null !");
-            mAccountCreator =
-                    mCore.createAccountCreator(LinphonePreferences.instance().getXmlrpcUrl());
-        }
-        return mAccountCreator;
-    }
-
-    /* Presence stuff */
-
-    private boolean isPresenceModelActivitySet() {
-        if (mCore != null) {
-            return mCore.getPresenceModel() != null
-                    && mCore.getPresenceModel().getActivity() != null;
-        }
-        return false;
-    }
-
-    public void changeStatusToOnline() {
-        if (mCore == null) return;
-        PresenceModel model = mCore.createPresenceModel();
-        model.setBasicStatus(PresenceBasicStatus.Open);
-        mCore.setPresenceModel(model);
-    }
-
-    public void changeStatusToOnThePhone() {
-        if (mCore == null) return;
-
-        if (isPresenceModelActivitySet()
-                && mCore.getPresenceModel().getActivity().getType()
-                        != PresenceActivity.Type.OnThePhone) {
-            mCore.getPresenceModel().getActivity().setType(PresenceActivity.Type.OnThePhone);
-        } else if (!isPresenceModelActivitySet()) {
-            PresenceModel model =
-                    mCore.createPresenceModelWithActivity(PresenceActivity.Type.OnThePhone, null);
-            mCore.setPresenceModel(model);
-        }
-    }
-
-    private void changeStatusToOffline() {
-        if (mCore != null) {
-            PresenceModel model = mCore.getPresenceModel();
-            model.setBasicStatus(PresenceBasicStatus.Closed);
-            mCore.setPresenceModel(model);
-        }
-    }
-
-    /* Tunnel stuff */
-
-    public void initTunnelFromConf() {
-        if (!mCore.tunnelAvailable()) return;
-
-        NetworkInfo info = mConnectivityManager.getActiveNetworkInfo();
-        Tunnel tunnel = mCore.getTunnel();
-        tunnel.cleanServers();
-        TunnelConfig config = mPrefs.getTunnelConfig();
-        if (config.getHost() != null) {
-            tunnel.addServer(config);
-            manageTunnelServer(info);
-        }
-    }
-
-    private boolean isTunnelNeeded(NetworkInfo info) {
-        if (info == null) {
-            Log.i("[Manager] No connectivity: tunnel should be disabled");
-            return false;
-        }
-
-        String pref = mPrefs.getTunnelMode();
-
-        if (getString(R.string.tunnel_mode_entry_value_always).equals(pref)) {
-            return true;
-        }
-
-        if (info.getType() != ConnectivityManager.TYPE_WIFI
-                && getString(R.string.tunnel_mode_entry_value_3G_only).equals(pref)) {
-            Log.i("[Manager] Need tunnel: 'no wifi' connection");
-            return true;
-        }
-
-        return false;
-    }
-
-    private void manageTunnelServer(NetworkInfo info) {
-        if (mCore == null) return;
-        if (!mCore.tunnelAvailable()) return;
-        Tunnel tunnel = mCore.getTunnel();
-
-        Log.i("[Manager] Managing tunnel");
-        if (isTunnelNeeded(info)) {
-            Log.i("[Manager] Tunnel need to be activated");
-            tunnel.setMode(Tunnel.Mode.Enable);
-        } else {
-            Log.i("[Manager] Tunnel should not be used");
-            String pref = mPrefs.getTunnelMode();
-            tunnel.setMode(Tunnel.Mode.Disable);
-            if (getString(R.string.tunnel_mode_entry_value_auto).equals(pref)) {
-                tunnel.setMode(Tunnel.Mode.Auto);
-            }
-        }
-    }
-
-    /* Proximity sensor stuff */
-
-    public void enableProximitySensing(boolean enable) {
-        if (enable) {
-            if (!mProximitySensingEnabled) {
-                mSensorManager.registerListener(
-                        this, mProximity, SensorManager.SENSOR_DELAY_NORMAL);
-                mProximitySensingEnabled = true;
-            }
-        } else {
-            if (mProximitySensingEnabled) {
-                mSensorManager.unregisterListener(this);
-                mProximitySensingEnabled = false;
-                // Don't forgeting to release wakelock if held
-                if (mProximityWakelock.isHeld()) {
-                    mProximityWakelock.release();
-                }
-            }
-        }
-    }
-
-    private Boolean isProximitySensorNearby(final SensorEvent event) {
-        float threshold = 4.001f; // <= 4 cm is near
-
-        final float distanceInCm = event.values[0];
-        final float maxDistance = event.sensor.getMaximumRange();
-        Log.d(
-                "[Manager] Proximity sensor report ["
-                        + distanceInCm
-                        + "] , for max range ["
-                        + maxDistance
-                        + "]");
-
-        if (maxDistance <= threshold) {
-            // Case binary 0/1 and short sensors
-            threshold = maxDistance;
-        }
-        return distanceInCm < threshold;
-    }
-
-    @Override
-    public void onSensorChanged(SensorEvent event) {
-        if (event.timestamp == 0) return;
-        if (isProximitySensorNearby(event)) {
-            if (!mProximityWakelock.isHeld()) {
-                mProximityWakelock.acquire();
-            }
-        } else {
-            if (mProximityWakelock.isHeld()) {
-                mProximityWakelock.release();
-            }
-        }
-    }
-
-    @Override
-    public void onAccuracyChanged(Sensor sensor, int accuracy) {}
-
-    /* Other stuff */
-
-    public void enableDeviceRingtone(boolean use) {
-        if (use) {
-            mCore.setRing(null);
-        } else {
-            mCore.setRing(mRingSoundFile);
-        }
-    }
-
-    public boolean getCallGsmON() {
-        return mCallGsmON;
-    }
-
-    public void setCallGsmON(boolean on) {
-        mCallGsmON = on;
-        if (on && mCore != null) {
-            mCore.pauseAllCalls();
-        }
-    }
-
-    private String getString(int key) {
-        return mContext.getString(key);
-    }
-
-    public boolean hasLastCallSasBeenRejected() {
-        return mHasLastCallSasBeenRejected;
-    }
-
-    public void lastCallSasRejected(boolean rejected) {
-        mHasLastCallSasBeenRejected = rejected;
-    }
-}

app/src/main/java/org/linphone/activities/AboutActivity.java

@@ -1,209 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone.activities;
-
-import android.app.ProgressDialog;
-import android.content.Intent;
-import android.graphics.drawable.ColorDrawable;
-import android.graphics.drawable.Drawable;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.WindowManager;
-import android.widget.Button;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-import androidx.core.content.ContextCompat;
-import org.linphone.LinphoneManager;
-import org.linphone.R;
-import org.linphone.core.Core;
-import org.linphone.core.CoreListenerStub;
-import org.linphone.settings.LinphonePreferences;
-
-public class AboutActivity extends MainActivity {
-    private CoreListenerStub mListener;
-    private ProgressDialog mProgress;
-    private boolean mUploadInProgress;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        mOnBackPressGoHome = false;
-        mAlwaysHideTabBar = true;
-
-        // Uses the fragment container layout to inflate the about view instead of using a fragment
-        View aboutView = LayoutInflater.from(this).inflate(R.layout.about, null, false);
-        LinearLayout fragmentContainer = findViewById(R.id.fragmentContainer);
-        LinearLayout.LayoutParams params =
-                new LinearLayout.LayoutParams(
-                        ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
-        fragmentContainer.addView(aboutView, params);
-
-        if (isTablet()) {
-            findViewById(R.id.fragmentContainer2).setVisibility(View.GONE);
-        }
-
-        TextView aboutVersion = findViewById(R.id.about_android_version);
-        TextView aboutLiblinphoneVersion = findViewById(R.id.about_liblinphone_sdk_version);
-        aboutLiblinphoneVersion.setText(
-                String.format(
-                        getString(R.string.about_liblinphone_sdk_version),
-                        getString(R.string.linphone_sdk_version)
-                                + " ("
-                                + getString(R.string.linphone_sdk_branch)
-                                + ")"));
-        // We can't access a library's BuildConfig, so we have to set it as a resource
-        aboutVersion.setText(
-                String.format(
-                        getString(R.string.about_version),
-                        org.linphone.BuildConfig.VERSION_NAME
-                                + " ("
-                                + org.linphone.BuildConfig.BUILD_TYPE
-                                + ")"));
-
-        TextView privacyPolicy = findViewById(R.id.privacy_policy_link);
-        privacyPolicy.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Intent browserIntent =
-                                new Intent(
-                                        Intent.ACTION_VIEW,
-                                        Uri.parse(getString(R.string.about_privacy_policy_link)));
-                        startActivity(browserIntent);
-                    }
-                });
-
-        TextView license = findViewById(R.id.about_text);
-        license.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Intent browserIntent =
-                                new Intent(
-                                        Intent.ACTION_VIEW,
-                                        Uri.parse(getString(R.string.about_license_link)));
-                        startActivity(browserIntent);
-                    }
-                });
-
-        Button sendLogs = findViewById(R.id.send_log);
-        sendLogs.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Core core = LinphoneManager.getCore();
-                        if (core != null) {
-                            core.uploadLogCollection();
-                        }
-                    }
-                });
-        sendLogs.setVisibility(
-                LinphonePreferences.instance().isDebugEnabled() ? View.VISIBLE : View.GONE);
-
-        Button resetLogs = findViewById(R.id.reset_log);
-        resetLogs.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Core core = LinphoneManager.getCore();
-                        if (core != null) {
-                            core.resetLogCollection();
-                        }
-                    }
-                });
-        resetLogs.setVisibility(
-                LinphonePreferences.instance().isDebugEnabled() ? View.VISIBLE : View.GONE);
-
-        mListener =
-                new CoreListenerStub() {
-                    @Override
-                    public void onLogCollectionUploadProgressIndication(
-                            Core core, int offset, int total) {}
-
-                    @Override
-                    public void onLogCollectionUploadStateChanged(
-                            Core core, Core.LogCollectionUploadState state, String info) {
-                        if (state == Core.LogCollectionUploadState.InProgress) {
-                            displayUploadLogsInProgress();
-                        } else if (state == Core.LogCollectionUploadState.Delivered
-                                || state == Core.LogCollectionUploadState.NotDelivered) {
-                            mUploadInProgress = false;
-                            if (mProgress != null) mProgress.dismiss();
-                        }
-                    }
-                };
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-
-        showTopBarWithTitle(getString(R.string.about));
-        if (getResources().getBoolean(R.bool.hide_bottom_bar_on_second_level_views)) {
-            hideTabBar();
-        }
-
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            core.addListener(mListener);
-        }
-    }
-
-    @Override
-    public void onPause() {
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            core.removeListener(mListener);
-        }
-
-        super.onPause();
-    }
-
-    @Override
-    protected void onDestroy() {
-        mListener = null;
-        mProgress = null;
-
-        super.onDestroy();
-    }
-
-    private void displayUploadLogsInProgress() {
-        if (mUploadInProgress) {
-            return;
-        }
-        mUploadInProgress = true;
-
-        mProgress = ProgressDialog.show(this, null, null);
-        Drawable d = new ColorDrawable(ContextCompat.getColor(this, R.color.light_grey_color));
-        d.setAlpha(200);
-        mProgress
-                .getWindow()
-                .setLayout(
-                        WindowManager.LayoutParams.MATCH_PARENT,
-                        WindowManager.LayoutParams.MATCH_PARENT);
-        mProgress.getWindow().setBackgroundDrawable(d);
-        mProgress.setContentView(R.layout.wait_layout);
-        mProgress.show();
-    }
-}

app/src/main/java/org/linphone/activities/GenericActivity.kt

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities
+
+import android.annotation.SuppressLint
+import android.content.pm.ActivityInfo
+import android.content.res.Configuration
+import android.os.Bundle
+import android.view.Surface
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
+import org.linphone.core.tools.Log
+
+abstract class GenericActivity : AppCompatActivity() {
+    @SuppressLint("SourceLockedOrientationActivity")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        if (corePreferences.forcePortrait) {
+            requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
+        }
+
+        val nightMode = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+        val darkModeEnabled = corePreferences.darkMode
+        when (nightMode) {
+            Configuration.UI_MODE_NIGHT_NO, Configuration.UI_MODE_NIGHT_UNDEFINED -> {
+                if (darkModeEnabled == 1) {
+                    // Force dark mode
+                    AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
+                }
+            }
+            Configuration.UI_MODE_NIGHT_YES -> {
+                if (darkModeEnabled == 0) {
+                    // Force light mode
+                    AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+                }
+            }
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        var degrees = 270
+        val orientation = windowManager.defaultDisplay.rotation
+        when (orientation) {
+            Surface.ROTATION_0 -> degrees = 0
+            Surface.ROTATION_90 -> degrees = 270
+            Surface.ROTATION_180 -> degrees = 180
+            Surface.ROTATION_270 -> degrees = 90
+        }
+        Log.i("[Generic Activity] Device orientation is $degrees (raw value is $orientation)")
+        val rotation = (360 - degrees) % 360
+        coreContext.core.deviceRotation = rotation
+
+        // Remove service notification if it has been started by device boot
+        coreContext.notificationsManager.stopForegroundNotificationIfPossible()
+    }
+
+    fun isTablet(): Boolean {
+        return resources.getBoolean(R.bool.isTablet)
+    }
+}

app/src/main/java/org/linphone/activities/LinphoneGenericActivity.java

@@ -1,94 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone.activities;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.Surface;
-import org.linphone.LinphoneContext;
-import org.linphone.LinphoneManager;
-import org.linphone.core.Core;
-import org.linphone.core.tools.Log;
-import org.linphone.service.LinphoneService;
-
-public abstract class LinphoneGenericActivity extends ThemeableActivity {
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        ensureServiceIsRunning();
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-
-        ensureServiceIsRunning();
-
-        if (LinphoneContext.isReady()) {
-            int degrees = 270;
-            int orientation = getWindowManager().getDefaultDisplay().getRotation();
-            switch (orientation) {
-                case Surface.ROTATION_0:
-                    degrees = 0;
-                    break;
-                case Surface.ROTATION_90:
-                    degrees = 270;
-                    break;
-                case Surface.ROTATION_180:
-                    degrees = 180;
-                    break;
-                case Surface.ROTATION_270:
-                    degrees = 90;
-                    break;
-            }
-
-            Log.i(
-                    "[Generic Activity] Device orientation is "
-                            + degrees
-                            + " (raw value is "
-                            + orientation
-                            + ")");
-
-            int rotation = (360 - degrees) % 360;
-            Core core = LinphoneManager.getCore();
-            if (core != null) {
-                core.setDeviceRotation(rotation);
-            }
-        }
-    }
-
-    private void ensureServiceIsRunning() {
-        if (!LinphoneService.isReady()) {
-            if (!LinphoneContext.isReady()) {
-                new LinphoneContext(getApplicationContext());
-                LinphoneContext.instance().start(false);
-                Log.i("[Generic Activity] Context created & started");
-            }
-
-            Log.i("[Generic Activity] Starting Service");
-            try {
-                startService(new Intent().setClass(this, LinphoneService.class));
-            } catch (IllegalStateException ise) {
-                Log.e("[Generic Activity] Couldn't start service, exception: ", ise);
-            }
-        }
-    }
-}

app/src/main/java/org/linphone/activities/LinphoneLauncherActivity.java

@@ -1,109 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone.activities;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.content.pm.ActivityInfo;
-import android.os.Bundle;
-import android.util.Log;
-import org.linphone.LinphoneManager;
-import org.linphone.R;
-import org.linphone.assistant.MenuAssistantActivity;
-import org.linphone.chat.ChatActivity;
-import org.linphone.contacts.ContactsActivity;
-import org.linphone.dialer.DialerActivity;
-import org.linphone.history.HistoryActivity;
-import org.linphone.service.LinphoneService;
-import org.linphone.service.ServiceWaitThread;
-import org.linphone.service.ServiceWaitThreadListener;
-import org.linphone.settings.LinphonePreferences;
-
-/** Creates LinphoneService and wait until Core is ready to start main Activity */
-public class LinphoneLauncherActivity extends Activity implements ServiceWaitThreadListener {
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        if (getResources().getBoolean(R.bool.orientation_portrait_only)) {
-            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
-        }
-
-        if (!getResources().getBoolean(R.bool.use_full_screen_image_splashscreen)) {
-            setContentView(R.layout.launch_screen);
-        } // Otherwise use drawable/launch_screen layer list up until first activity starts
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-
-        if (LinphoneService.isReady()) {
-            onServiceReady();
-        } else {
-            try {
-                startService(
-                        new Intent()
-                                .setClass(LinphoneLauncherActivity.this, LinphoneService.class));
-                new ServiceWaitThread(this).start();
-            } catch (IllegalStateException ise) {
-                Log.e("Linphone", "Exception raised while starting service: " + ise);
-            }
-        }
-    }
-
-    @Override
-    public void onServiceReady() {
-        final Class<? extends Activity> classToStart;
-
-        boolean useFirstLoginActivity =
-                getResources().getBoolean(R.bool.display_account_assistant_at_first_start);
-        if (useFirstLoginActivity && LinphonePreferences.instance().isFirstLaunch()) {
-            classToStart = MenuAssistantActivity.class;
-        } else {
-            if (getIntent().getExtras() != null) {
-                String activity = getIntent().getExtras().getString("Activity", null);
-                if (ChatActivity.NAME.equals(activity)) {
-                    classToStart = ChatActivity.class;
-                } else if (HistoryActivity.NAME.equals(activity)) {
-                    classToStart = HistoryActivity.class;
-                } else if (ContactsActivity.NAME.equals(activity)) {
-                    classToStart = ContactsActivity.class;
-                } else {
-                    classToStart = DialerActivity.class;
-                }
-            } else {
-                classToStart = DialerActivity.class;
-            }
-        }
-
-        Intent intent = new Intent();
-        intent.setClass(LinphoneLauncherActivity.this, classToStart);
-        if (getIntent() != null && getIntent().getExtras() != null) {
-            intent.putExtras(getIntent().getExtras());
-        }
-        intent.setAction(getIntent().getAction());
-        intent.setType(getIntent().getType());
-        intent.setData(getIntent().getData());
-        startActivity(intent);
-
-        LinphoneManager.getInstance().changeStatusToOnline();
-    }
-}

app/src/main/java/org/linphone/activities/MainActivity.java

@@ -1,968 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone.activities;
-
-import android.Manifest;
-import android.app.Dialog;
-import android.app.Fragment;
-import android.app.FragmentManager;
-import android.app.FragmentTransaction;
-import android.app.KeyguardManager;
-import android.content.ActivityNotFoundException;
-import android.content.ClipData;
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.os.Bundle;
-import android.view.KeyEvent;
-import android.view.View;
-import android.widget.Button;
-import android.widget.CheckBox;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-import android.widget.Toast;
-import androidx.core.app.ActivityCompat;
-import androidx.drawerlayout.widget.DrawerLayout;
-import java.sql.Timestamp;
-import java.util.ArrayList;
-import java.util.Date;
-import org.linphone.LinphoneContext;
-import org.linphone.LinphoneManager;
-import org.linphone.R;
-import org.linphone.assistant.PhoneAccountLinkingAssistantActivity;
-import org.linphone.call.CallActivity;
-import org.linphone.call.CallIncomingActivity;
-import org.linphone.call.CallOutgoingActivity;
-import org.linphone.chat.ChatActivity;
-import org.linphone.compatibility.Compatibility;
-import org.linphone.contacts.ContactsActivity;
-import org.linphone.contacts.ContactsManager;
-import org.linphone.contacts.LinphoneContact;
-import org.linphone.core.AccountCreator;
-import org.linphone.core.AccountCreatorListenerStub;
-import org.linphone.core.Address;
-import org.linphone.core.Call;
-import org.linphone.core.ChatMessage;
-import org.linphone.core.ChatRoom;
-import org.linphone.core.Core;
-import org.linphone.core.CoreListenerStub;
-import org.linphone.core.ProxyConfig;
-import org.linphone.core.RegistrationState;
-import org.linphone.core.tools.Log;
-import org.linphone.dialer.DialerActivity;
-import org.linphone.fragments.EmptyFragment;
-import org.linphone.fragments.StatusBarFragment;
-import org.linphone.history.HistoryActivity;
-import org.linphone.menu.SideMenuFragment;
-import org.linphone.service.LinphoneService;
-import org.linphone.settings.LinphonePreferences;
-import org.linphone.settings.SettingsActivity;
-import org.linphone.utils.DeviceUtils;
-import org.linphone.utils.LinphoneUtils;
-
-public abstract class MainActivity extends LinphoneGenericActivity
-        implements StatusBarFragment.MenuClikedListener, SideMenuFragment.QuitClikedListener {
-    private static final int MAIN_PERMISSIONS = 1;
-    protected static final int FRAGMENT_SPECIFIC_PERMISSION = 2;
-
-    private TextView mMissedCalls;
-    private TextView mMissedMessages;
-    protected View mContactsSelected;
-    protected View mHistorySelected;
-    protected View mDialerSelected;
-    protected View mChatSelected;
-    private LinearLayout mTopBar;
-    private TextView mTopBarTitle;
-    private LinearLayout mTabBar;
-
-    private SideMenuFragment mSideMenuFragment;
-    private StatusBarFragment mStatusBarFragment;
-
-    protected boolean mOnBackPressGoHome;
-    protected boolean mAlwaysHideTabBar;
-    protected String[] mPermissionsToHave;
-
-    private CoreListenerStub mListener;
-    private AccountCreatorListenerStub mAccountCreatorListener;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        setContentView(R.layout.main);
-
-        mOnBackPressGoHome = true;
-        mAlwaysHideTabBar = false;
-
-        RelativeLayout history = findViewById(R.id.history);
-        history.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Intent intent = new Intent(MainActivity.this, HistoryActivity.class);
-                        addFlagsToIntent(intent);
-                        startActivity(intent);
-                    }
-                });
-        RelativeLayout contacts = findViewById(R.id.contacts);
-        contacts.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Intent intent = new Intent(MainActivity.this, ContactsActivity.class);
-                        addFlagsToIntent(intent);
-                        startActivity(intent);
-                    }
-                });
-        RelativeLayout dialer = findViewById(R.id.dialer);
-        dialer.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Intent intent = new Intent(MainActivity.this, DialerActivity.class);
-                        addFlagsToIntent(intent);
-                        startActivity(intent);
-                    }
-                });
-        RelativeLayout chat = findViewById(R.id.chat);
-        chat.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Intent intent = new Intent(MainActivity.this, ChatActivity.class);
-                        addFlagsToIntent(intent);
-                        startActivity(intent);
-                    }
-                });
-
-        mMissedCalls = findViewById(R.id.missed_calls);
-        mMissedMessages = findViewById(R.id.missed_chats);
-
-        mHistorySelected = findViewById(R.id.history_select);
-        mContactsSelected = findViewById(R.id.contacts_select);
-        mDialerSelected = findViewById(R.id.dialer_select);
-        mChatSelected = findViewById(R.id.chat_select);
-
-        mTabBar = findViewById(R.id.footer);
-        mTopBar = findViewById(R.id.top_bar);
-        mTopBarTitle = findViewById(R.id.top_bar_title);
-
-        ImageView back = findViewById(R.id.cancel);
-        back.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        goBack();
-                    }
-                });
-
-        mStatusBarFragment =
-                (StatusBarFragment) getFragmentManager().findFragmentById(R.id.status_fragment);
-
-        DrawerLayout mSideMenu = findViewById(R.id.side_menu);
-        RelativeLayout mSideMenuContent = findViewById(R.id.side_menu_content);
-        mSideMenuFragment =
-                (SideMenuFragment)
-                        getSupportFragmentManager().findFragmentById(R.id.side_menu_fragment);
-        mSideMenuFragment.setDrawer(mSideMenu, mSideMenuContent);
-
-        if (getResources().getBoolean(R.bool.disable_chat)) {
-            chat.setVisibility(View.GONE);
-        }
-
-        mListener =
-                new CoreListenerStub() {
-                    @Override
-                    public void onCallStateChanged(
-                            Core core, Call call, Call.State state, String message) {
-                        if (state == Call.State.End || state == Call.State.Released) {
-                            displayMissedCalls();
-                        }
-                    }
-
-                    @Override
-                    public void onMessageReceived(Core core, ChatRoom room, ChatMessage message) {
-                        displayMissedChats();
-                    }
-
-                    @Override
-                    public void onChatRoomRead(Core core, ChatRoom room) {
-                        displayMissedChats();
-                    }
-
-                    @Override
-                    public void onMessageReceivedUnableDecrypt(
-                            Core core, ChatRoom room, ChatMessage message) {
-                        displayMissedChats();
-                    }
-
-                    @Override
-                    public void onRegistrationStateChanged(
-                            Core core,
-                            ProxyConfig proxyConfig,
-                            RegistrationState state,
-                            String message) {
-                        mSideMenuFragment.displayAccountsInSideMenu();
-
-                        if (state == RegistrationState.Ok) {
-                            // For push notifications to work on some devices,
-                            // app must be in "protected mode" in battery settings...
-                            // https://stackoverflow.com/questions/31638986/protected-apps-setting-on-huawei-phones-and-how-to-handle-it
-                            DeviceUtils
-                                    .displayDialogIfDeviceHasPowerManagerThatCouldPreventPushNotifications(
-                                            MainActivity.this);
-
-                            if (getResources().getBoolean(R.bool.use_phone_number_validation)) {
-                                if (proxyConfig
-                                        .getDomain()
-                                        .equals(getString(R.string.default_domain))) {
-                                    isAccountWithAlias();
-                                }
-                            }
-
-                            if (!Compatibility.isDoNotDisturbSettingsAccessGranted(
-                                    MainActivity.this)) {
-                                displayDNDSettingsDialog();
-                            }
-                        }
-                    }
-
-                    @Override
-                    public void onLogCollectionUploadStateChanged(
-                            Core core, Core.LogCollectionUploadState state, String info) {
-                        Log.d(
-                                "[Main Activity] Log upload state: "
-                                        + state.toString()
-                                        + ", info = "
-                                        + info);
-                        if (state == Core.LogCollectionUploadState.Delivered) {
-                            ClipboardManager clipboard =
-                                    (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
-                            ClipData clip = ClipData.newPlainText("Logs url", info);
-                            clipboard.setPrimaryClip(clip);
-                            Toast.makeText(
-                                            MainActivity.this,
-                                            getString(R.string.logs_url_copied_to_clipboard),
-                                            Toast.LENGTH_SHORT)
-                                    .show();
-                            shareUploadedLogsUrl(info);
-                        }
-                    }
-                };
-
-        mAccountCreatorListener =
-                new AccountCreatorListenerStub() {
-                    @Override
-                    public void onIsAccountExist(
-                            AccountCreator accountCreator,
-                            AccountCreator.Status status,
-                            String resp) {
-                        if (status.equals(AccountCreator.Status.AccountExist)) {
-                            accountCreator.isAccountLinked();
-                        }
-                    }
-
-                    @Override
-                    public void onLinkAccount(
-                            AccountCreator accountCreator,
-                            AccountCreator.Status status,
-                            String resp) {
-                        if (status.equals(AccountCreator.Status.AccountNotLinked)) {
-                            askLinkWithPhoneNumber();
-                        }
-                    }
-
-                    @Override
-                    public void onIsAccountLinked(
-                            AccountCreator accountCreator,
-                            AccountCreator.Status status,
-                            String resp) {
-                        if (status.equals(AccountCreator.Status.AccountNotLinked)) {
-                            askLinkWithPhoneNumber();
-                        }
-                    }
-                };
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-
-        requestRequiredPermissions();
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-
-        LinphoneContext.instance()
-                .getNotificationManager()
-                .removeForegroundServiceNotificationIfPossible();
-
-        hideTopBar();
-        if (!mAlwaysHideTabBar
-                && (getFragmentManager().getBackStackEntryCount() == 0
-                        || !getResources()
-                                .getBoolean(R.bool.hide_bottom_bar_on_second_level_views))) {
-            showTabBar();
-        }
-
-        mHistorySelected.setVisibility(View.GONE);
-        mContactsSelected.setVisibility(View.GONE);
-        mDialerSelected.setVisibility(View.GONE);
-        mChatSelected.setVisibility(View.GONE);
-
-        mStatusBarFragment.setMenuListener(this);
-        mSideMenuFragment.setQuitListener(this);
-        mSideMenuFragment.displayAccountsInSideMenu();
-
-        if (mSideMenuFragment.isOpened()) {
-            mSideMenuFragment.closeDrawer();
-        }
-
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            core.addListener(mListener);
-            displayMissedChats();
-            displayMissedCalls();
-        }
-    }
-
-    @Override
-    protected void onPause() {
-        mStatusBarFragment.setMenuListener(null);
-        mSideMenuFragment.setQuitListener(null);
-
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            core.removeListener(mListener);
-        }
-
-        super.onPause();
-    }
-
-    @Override
-    protected void onDestroy() {
-        mMissedCalls = null;
-        mMissedMessages = null;
-        mContactsSelected = null;
-        mHistorySelected = null;
-        mDialerSelected = null;
-        mChatSelected = null;
-        mTopBar = null;
-        mTopBarTitle = null;
-        mTabBar = null;
-
-        mSideMenuFragment = null;
-        mStatusBarFragment = null;
-
-        mListener = null;
-
-        super.onDestroy();
-    }
-
-    @Override
-    protected void onSaveInstanceState(Bundle outState) {
-        try {
-            super.onSaveInstanceState(outState);
-        } catch (IllegalStateException ise) {
-            // Do not log this exception
-        }
-    }
-
-    @Override
-    protected void onRestoreInstanceState(Bundle savedInstanceState) {
-        try {
-            super.onRestoreInstanceState(savedInstanceState);
-        } catch (IllegalStateException ise) {
-            // Do not log this exception
-        }
-    }
-
-    @Override
-    public void onMenuCliked() {
-        if (mSideMenuFragment.isOpened()) {
-            mSideMenuFragment.openOrCloseSideMenu(false, true);
-        } else {
-            mSideMenuFragment.openOrCloseSideMenu(true, true);
-        }
-    }
-
-    @Override
-    public void onQuitClicked() {
-        quit();
-    }
-
-    @Override
-    public boolean onKeyDown(int keyCode, KeyEvent event) {
-        if (keyCode == KeyEvent.KEYCODE_BACK) {
-            if (mOnBackPressGoHome) {
-                if (getFragmentManager().getBackStackEntryCount() == 0) {
-                    goHomeAndClearStack();
-                    return true;
-                }
-            }
-            goBack();
-            return true;
-        }
-        return super.onKeyDown(keyCode, event);
-    }
-
-    public boolean popBackStack() {
-        if (getFragmentManager().getBackStackEntryCount() > 0) {
-            getFragmentManager().popBackStackImmediate();
-            if (!mAlwaysHideTabBar
-                    && (getFragmentManager().getBackStackEntryCount() == 0
-                            && getResources()
-                                    .getBoolean(R.bool.hide_bottom_bar_on_second_level_views))) {
-                showTabBar();
-            }
-            return true;
-        }
-        return false;
-    }
-
-    public void goBack() {
-        finish();
-    }
-
-    protected boolean isTablet() {
-        return getResources().getBoolean(R.bool.isTablet);
-    }
-
-    private void goHomeAndClearStack() {
-        Intent intent = new Intent();
-        intent.setAction(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME);
-        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
-        try {
-            startActivity(intent);
-        } catch (IllegalStateException ise) {
-            Log.e("[Main Activity] Can't start home activity: ", ise);
-        }
-    }
-
-    private void quit() {
-        goHomeAndClearStack();
-        if (LinphoneService.isReady()
-                && LinphonePreferences.instance().getServiceNotificationVisibility()) {
-            LinphoneService.instance().stopSelf();
-        }
-    }
-
-    // Tab, Top and Status bars
-
-    public void hideStatusBar() {
-        findViewById(R.id.status_fragment).setVisibility(View.GONE);
-    }
-
-    public void showStatusBar() {
-        findViewById(R.id.status_fragment).setVisibility(View.VISIBLE);
-    }
-
-    public void hideTabBar() {
-        if (!isTablet()) { // do not hide if tablet, otherwise won't be able to navigate...
-            mTabBar.setVisibility(View.GONE);
-        }
-    }
-
-    public void showTabBar() {
-        mTabBar.setVisibility(View.VISIBLE);
-    }
-
-    protected void hideTopBar() {
-        mTopBar.setVisibility(View.GONE);
-        mTopBarTitle.setText("");
-    }
-
-    private void showTopBar() {
-        mTopBar.setVisibility(View.VISIBLE);
-    }
-
-    protected void showTopBarWithTitle(String title) {
-        showTopBar();
-        mTopBarTitle.setText(title);
-    }
-
-    // Permissions
-
-    public boolean checkPermission(String permission) {
-        int granted = getPackageManager().checkPermission(permission, getPackageName());
-        Log.i(
-                "[Permission] "
-                        + permission
-                        + " permission is "
-                        + (granted == PackageManager.PERMISSION_GRANTED ? "granted" : "denied"));
-        return granted == PackageManager.PERMISSION_GRANTED;
-    }
-
-    public boolean checkPermissions(String[] permissions) {
-        boolean allGranted = true;
-        for (String permission : permissions) {
-            allGranted &= checkPermission(permission);
-        }
-        return allGranted;
-    }
-
-    public void requestPermissionIfNotGranted(String permission) {
-        if (!checkPermission(permission)) {
-            Log.i("[Permission] Requesting " + permission + " permission");
-
-            String[] permissions = new String[] {permission};
-            KeyguardManager km = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
-            boolean locked = km.inKeyguardRestrictedInputMode();
-            if (!locked) {
-                // This is to workaround an infinite loop of pause/start in Activity issue
-                // if incoming call ends while screen if off and locked
-                ActivityCompat.requestPermissions(this, permissions, FRAGMENT_SPECIFIC_PERMISSION);
-            }
-        }
-    }
-
-    public void requestPermissionsIfNotGranted(String[] perms) {
-        requestPermissionsIfNotGranted(perms, FRAGMENT_SPECIFIC_PERMISSION);
-    }
-
-    private void requestPermissionsIfNotGranted(String[] perms, int resultCode) {
-        ArrayList<String> permissionsToAskFor = new ArrayList<>();
-        if (perms != null) { // This is created (or not) by the child activity
-            for (String permissionToHave : perms) {
-                if (!checkPermission(permissionToHave)) {
-                    permissionsToAskFor.add(permissionToHave);
-                }
-            }
-        }
-
-        if (permissionsToAskFor.size() > 0) {
-            for (String permission : permissionsToAskFor) {
-                Log.i("[Permission] Requesting " + permission + " permission");
-            }
-            String[] permissions = new String[permissionsToAskFor.size()];
-            permissions = permissionsToAskFor.toArray(permissions);
-
-            KeyguardManager km = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
-            boolean locked = km.inKeyguardRestrictedInputMode();
-            if (!locked) {
-                // This is to workaround an infinite loop of pause/start in Activity issue
-                // if incoming call ends while screen if off and locked
-                ActivityCompat.requestPermissions(this, permissions, resultCode);
-            }
-        }
-    }
-
-    private void requestRequiredPermissions() {
-        requestPermissionsIfNotGranted(mPermissionsToHave, MAIN_PERMISSIONS);
-    }
-
-    @Override
-    public void onRequestPermissionsResult(
-            int requestCode, String[] permissions, int[] grantResults) {
-        if (permissions.length <= 0) return;
-
-        for (int i = 0; i < permissions.length; i++) {
-            Log.i(
-                    "[Permission] "
-                            + permissions[i]
-                            + " is "
-                            + (grantResults[i] == PackageManager.PERMISSION_GRANTED
-                                    ? "granted"
-                                    : "denied"));
-            if (permissions[i].equals(Manifest.permission.READ_CONTACTS)
-                    || permissions[i].equals(Manifest.permission.WRITE_CONTACTS)) {
-                if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
-                    if (LinphoneContext.isReady()) {
-                        ContactsManager.getInstance().enableContactsAccess();
-                        ContactsManager.getInstance().initializeContactManager();
-                        ContactsManager.getInstance().fetchContactsAsync();
-                    }
-                }
-            } else if (permissions[i].equals(Manifest.permission.READ_EXTERNAL_STORAGE)) {
-                boolean enableRingtone = grantResults[i] == PackageManager.PERMISSION_GRANTED;
-                LinphonePreferences.instance().enableDeviceRingtone(enableRingtone);
-                LinphoneManager.getInstance().enableDeviceRingtone(enableRingtone);
-            } else if (permissions[i].equals(Manifest.permission.CAMERA)
-                    && grantResults[i] == PackageManager.PERMISSION_GRANTED) {
-                LinphoneUtils.reloadVideoDevices();
-            }
-        }
-    }
-
-    // Missed calls & chat indicators
-
-    protected void displayMissedCalls() {
-        int count = 0;
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            count = core.getMissedCallsCount();
-        }
-
-        if (count > 0) {
-            mMissedCalls.setText(String.valueOf(count));
-            mMissedCalls.setVisibility(View.VISIBLE);
-        } else {
-            mMissedCalls.clearAnimation();
-            mMissedCalls.setVisibility(View.GONE);
-        }
-    }
-
-    public void displayMissedChats() {
-        int count = 0;
-        Core core = LinphoneManager.getCore();
-        if (core != null) {
-            count = core.getUnreadChatMessageCountFromActiveLocals();
-        }
-
-        if (count > 0) {
-            mMissedMessages.setText(String.valueOf(count));
-            mMissedMessages.setVisibility(View.VISIBLE);
-        } else {
-            mMissedMessages.clearAnimation();
-            mMissedMessages.setVisibility(View.GONE);
-        }
-    }
-
-    // Navigation between actvities
-
-    public void goBackToCall() {
-        boolean incoming = false;
-        boolean outgoing = false;
-        Call[] calls = LinphoneManager.getCore().getCalls();
-
-        for (Call call : calls) {
-            Call.State state = call.getState();
-            switch (state) {
-                case IncomingEarlyMedia:
-                case IncomingReceived:
-                    incoming = true;
-                    break;
-                case OutgoingEarlyMedia:
-                case OutgoingInit:
-                case OutgoingProgress:
-                case OutgoingRinging:
-                    outgoing = true;
-                    break;
-            }
-        }
-
-        if (incoming) {
-            startActivity(new Intent(this, CallIncomingActivity.class));
-        } else if (outgoing) {
-            startActivity(new Intent(this, CallOutgoingActivity.class));
-        } else {
-            startActivity(new Intent(this, CallActivity.class));
-        }
-    }
-
-    public void newOutgoingCall(String to) {
-        if (LinphoneManager.getCore().getCallsNb() > 0) {
-            Intent intent = new Intent(this, DialerActivity.class);
-            intent.addFlags(
-                    Intent.FLAG_ACTIVITY_NO_ANIMATION | Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
-            intent.putExtra("SipUri", to);
-            this.startActivity(intent);
-        } else {
-            LinphoneManager.getCallManager().newOutgoingCall(to, null);
-        }
-    }
-
-    private void addFlagsToIntent(Intent intent) {
-        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION | Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
-    }
-
-    protected void changeFragment(Fragment fragment, String name, boolean isChild) {
-        FragmentManager fragmentManager = getFragmentManager();
-        FragmentTransaction transaction = fragmentManager.beginTransaction();
-
-        if (transaction.isAddToBackStackAllowed()) {
-            int count = fragmentManager.getBackStackEntryCount();
-            if (count > 0) {
-                FragmentManager.BackStackEntry entry =
-                        fragmentManager.getBackStackEntryAt(count - 1);
-
-                if (entry != null && name.equals(entry.getName())) {
-                    fragmentManager.popBackStack();
-                    if (!isChild) {
-                        // We just removed it's duplicate from the back stack
-                        // And we want at least one in it
-                        transaction.addToBackStack(name);
-                    }
-                }
-            }
-
-            if (isChild) {
-                transaction.addToBackStack(name);
-            }
-        }
-
-        if (getResources().getBoolean(R.bool.hide_bottom_bar_on_second_level_views)) {
-            if (isChild) {
-                if (!isTablet()) {
-                    hideTabBar();
-                }
-            } else {
-                showTabBar();
-            }
-        }
-
-        Compatibility.setFragmentTransactionReorderingAllowed(transaction, false);
-        if (isChild && isTablet()) {
-            transaction.replace(R.id.fragmentContainer2, fragment, name);
-            findViewById(R.id.fragmentContainer2).setVisibility(View.VISIBLE);
-        } else {
-            transaction.replace(R.id.fragmentContainer, fragment, name);
-        }
-        transaction.commitAllowingStateLoss();
-        fragmentManager.executePendingTransactions();
-    }
-
-    public void showEmptyChildFragment() {
-        changeFragment(new EmptyFragment(), "Empty", true);
-    }
-
-    public void showAccountSettings(int accountIndex) {
-        Intent intent = new Intent(this, SettingsActivity.class);
-        addFlagsToIntent(intent);
-        intent.putExtra("Account", accountIndex);
-        startActivity(intent);
-    }
-
-    public void showContactDetails(LinphoneContact contact) {
-        Intent intent = new Intent(this, ContactsActivity.class);
-        addFlagsToIntent(intent);
-        intent.putExtra("Contact", contact);
-        startActivity(intent);
-    }
-
-    public void showContactsListForCreationOrEdition(Address address) {
-        if (address == null) return;
-
-        Intent intent = new Intent(this, ContactsActivity.class);
-        addFlagsToIntent(intent);
-        intent.putExtra("CreateOrEdit", true);
-        intent.putExtra("SipUri", address.asStringUriOnly());
-        if (address.getDisplayName() != null) {
-            intent.putExtra("DisplayName", address.getDisplayName());
-        }
-        startActivity(intent);
-    }
-
-    public void showChatRoom(Address localAddress, Address peerAddress) {
-        Intent intent = new Intent(this, ChatActivity.class);
-        addFlagsToIntent(intent);
-        if (localAddress != null) {
-            intent.putExtra("LocalSipUri", localAddress.asStringUriOnly());
-        }
-        if (peerAddress != null) {
-            intent.putExtra("RemoteSipUri", peerAddress.asStringUriOnly());
-        }
-        startActivity(intent);
-    }
-
-    // Dialogs
-
-    public Dialog displayDialog(String text) {
-        return LinphoneUtils.getDialog(this, text);
-    }
-
-    public void displayChatRoomError() {
-        final Dialog dialog = displayDialog(getString(R.string.chat_room_creation_failed));
-        dialog.findViewById(R.id.dialog_delete_button).setVisibility(View.GONE);
-        Button cancel = dialog.findViewById(R.id.dialog_cancel_button);
-        cancel.setText(getString(R.string.ok));
-        cancel.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View view) {
-                        dialog.dismiss();
-                    }
-                });
-
-        dialog.show();
-    }
-
-    private void displayDNDSettingsDialog() {
-        if (!LinphonePreferences.instance().isDNDSettingsPopupEnabled()) return;
-        Log.w("[Permission] Asking user to grant us permission to read DND settings");
-
-        final Dialog dialog =
-                displayDialog(getString(R.string.pref_grant_read_dnd_settings_permission_desc));
-        dialog.findViewById(R.id.dialog_do_not_ask_again_layout).setVisibility(View.VISIBLE);
-        final CheckBox doNotAskAgain = dialog.findViewById(R.id.doNotAskAgain);
-        dialog.findViewById(R.id.doNotAskAgainLabel)
-                .setOnClickListener(
-                        new View.OnClickListener() {
-                            @Override
-                            public void onClick(View v) {
-                                doNotAskAgain.setChecked(!doNotAskAgain.isChecked());
-                            }
-                        });
-        Button cancel = dialog.findViewById(R.id.dialog_cancel_button);
-        cancel.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        if (doNotAskAgain.isChecked()) {
-                            LinphonePreferences.instance().enableDNDSettingsPopup(false);
-                        }
-                        dialog.dismiss();
-                    }
-                });
-        Button ok = dialog.findViewById(R.id.dialog_ok_button);
-        ok.setVisibility(View.VISIBLE);
-        ok.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        try {
-                            startActivity(
-                                    new Intent(
-                                            "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS"));
-                        } catch (ActivityNotFoundException anfe) {
-                            Log.e("[Main Activity] Activity not found exception: ", anfe);
-                        }
-                        dialog.dismiss();
-                    }
-                });
-        Button delete = dialog.findViewById(R.id.dialog_delete_button);
-        delete.setVisibility(View.GONE);
-        dialog.show();
-    }
-
-    public void isAccountWithAlias() {
-        if (LinphoneManager.getCore().getDefaultProxyConfig() != null) {
-            long now = new Timestamp(new Date().getTime()).getTime();
-            AccountCreator accountCreator = LinphoneManager.getInstance().getAccountCreator();
-            accountCreator.setListener(mAccountCreatorListener);
-            if (LinphonePreferences.instance().getLinkPopupTime() == null
-                    || Long.parseLong(LinphonePreferences.instance().getLinkPopupTime()) < now) {
-                accountCreator.reset();
-                accountCreator.setUsername(
-                        LinphonePreferences.instance()
-                                .getAccountUsername(
-                                        LinphonePreferences.instance().getDefaultAccountIndex()));
-                accountCreator.isAccountExist();
-            }
-        } else {
-            LinphonePreferences.instance().setLinkPopupTime(null);
-        }
-    }
-
-    private void askLinkWithPhoneNumber() {
-        if (!LinphonePreferences.instance().isLinkPopupEnabled()) return;
-
-        long now = new Timestamp(new Date().getTime()).getTime();
-        if (LinphonePreferences.instance().getLinkPopupTime() != null
-                && Long.parseLong(LinphonePreferences.instance().getLinkPopupTime()) >= now) return;
-
-        ProxyConfig proxyConfig = LinphoneManager.getCore().getDefaultProxyConfig();
-        if (proxyConfig == null) return;
-        if (!proxyConfig.getDomain().equals(getString(R.string.default_domain))) return;
-
-        final Dialog dialog =
-                LinphoneUtils.getDialog(
-                        this,
-                        String.format(
-                                getString(R.string.link_account_popup),
-                                proxyConfig.getIdentityAddress().asStringUriOnly()));
-        Button delete = dialog.findViewById(R.id.dialog_delete_button);
-        delete.setVisibility(View.GONE);
-        Button ok = dialog.findViewById(R.id.dialog_ok_button);
-        ok.setText(getString(R.string.link));
-        ok.setVisibility(View.VISIBLE);
-        Button cancel = dialog.findViewById(R.id.dialog_cancel_button);
-        cancel.setText(getString(R.string.maybe_later));
-
-        dialog.findViewById(R.id.dialog_do_not_ask_again_layout).setVisibility(View.VISIBLE);
-        final CheckBox doNotAskAgain = dialog.findViewById(R.id.doNotAskAgain);
-        dialog.findViewById(R.id.doNotAskAgainLabel)
-                .setOnClickListener(
-                        new View.OnClickListener() {
-                            @Override
-                            public void onClick(View v) {
-                                doNotAskAgain.setChecked(!doNotAskAgain.isChecked());
-                            }
-                        });
-
-        ok.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View view) {
-                        Intent assistant = new Intent();
-                        assistant.setClass(
-                                MainActivity.this, PhoneAccountLinkingAssistantActivity.class);
-                        startActivity(assistant);
-                        updatePopupTimestamp();
-                        dialog.dismiss();
-                    }
-                });
-
-        cancel.setOnClickListener(
-                new View.OnClickListener() {
-                    @Override
-                    public void onClick(View view) {
-                        if (doNotAskAgain.isChecked()) {
-                            LinphonePreferences.instance().enableLinkPopup(false);
-                        }
-                        updatePopupTimestamp();
-                        dialog.dismiss();
-                    }
-                });
-        dialog.show();
-    }
-
-    private void updatePopupTimestamp() {
-        long future =
-                new Timestamp(
-                                getResources()
-                                        .getInteger(
-                                                R.integer.phone_number_linking_popup_time_interval))
-                        .getTime();
-        long now = new Timestamp(new Date().getTime()).getTime();
-        long newDate = now + future;
-
-        LinphonePreferences.instance().setLinkPopupTime(String.valueOf(newDate));
-    }
-
-    // Logs
-
-    private void shareUploadedLogsUrl(String info) {
-        final String appName = getString(R.string.app_name);
-
-        Intent i = new Intent(Intent.ACTION_SEND);
-        i.putExtra(Intent.EXTRA_EMAIL, new String[] {getString(R.string.about_bugreport_email)});
-        i.putExtra(Intent.EXTRA_SUBJECT, appName + " Logs");
-        i.putExtra(Intent.EXTRA_TEXT, info);
-        i.setType("application/zip");
-
-        try {
-            startActivity(Intent.createChooser(i, "Send mail..."));
-        } catch (android.content.ActivityNotFoundException ex) {
-            Log.e(ex);
-        }
-    }
-
-    // Others
-
-    public SideMenuFragment getSideMenuFragment() {
-        return mSideMenuFragment;
-    }
-}

app/src/main/java/org/linphone/activities/SnackBarActivity.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
  *
  * This file is part of linphone-android
  * (see https://www.linphone.org).
@@ -17,8 +17,8 @@
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-package org.linphone.call.views;
+package org.linphone.activities
 
-public interface CallIncomingButtonListener {
+interface SnackBarActivity {
-    void onAction();
+    fun showSnackBar(resourceId: Int)
 }

app/src/main/java/org/linphone/activities/ThemeableActivity.java

@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
- *
- * This file is part of linphone-android
- * (see https://www.linphone.org).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.linphone.activities;
-
-import android.content.pm.ActivityInfo;
-import android.content.res.Configuration;
-import android.os.Bundle;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.app.AppCompatDelegate;
-import org.linphone.R;
-import org.linphone.settings.LinphonePreferences;
-
-public abstract class ThemeableActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        if (getResources().getBoolean(R.bool.orientation_portrait_only)) {
-            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
-        }
-
-        super.onCreate(savedInstanceState);
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-
-        int nightMode = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
-        switch (nightMode) {
-            case Configuration.UI_MODE_NIGHT_NO:
-            case Configuration.UI_MODE_NIGHT_UNDEFINED:
-                if (LinphonePreferences.instance().isDarkModeEnabled()) {
-                    AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
-                }
-            case Configuration.UI_MODE_NIGHT_YES:
-                if (!LinphonePreferences.instance().isDarkModeEnabled()) {
-                    AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
-                }
-        }
-    }
-}

app/src/main/java/org/linphone/activities/assistant/AssistantActivity.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant
+
+import android.os.Bundle
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.ViewModelProvider
+import com.google.android.material.snackbar.Snackbar
+import org.linphone.R
+import org.linphone.activities.GenericActivity
+import org.linphone.activities.SnackBarActivity
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantActivityBinding
+
+class AssistantActivity : GenericActivity(), SnackBarActivity {
+    private lateinit var binding: AssistantActivityBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = DataBindingUtil.setContentView(this, R.layout.assistant_activity)
+
+        sharedViewModel = ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+    }
+
+    override fun showSnackBar(resourceId: Int) {
+        Snackbar.make(binding.coordinator, resourceId, Snackbar.LENGTH_LONG).show()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/adapters/CountryPickerAdapter.kt

@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.adapters
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.BaseAdapter
+import android.widget.Filter
+import android.widget.Filterable
+import android.widget.TextView
+import kotlin.collections.ArrayList
+import org.linphone.R
+import org.linphone.core.DialPlan
+import org.linphone.core.Factory
+
+class CountryPickerAdapter : BaseAdapter(), Filterable {
+    private var countries: ArrayList<DialPlan>
+
+    init {
+        val dialPlans = Factory.instance().dialPlans
+        countries = arrayListOf()
+        countries.addAll(dialPlans)
+    }
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+        val view: View = convertView ?: LayoutInflater.from(parent.context).inflate(R.layout.assistant_country_picker_cell, parent, false)
+        val dialPlan: DialPlan = countries[position]
+
+        val name = view.findViewById<TextView>(R.id.country_name)
+        name.text = dialPlan.country
+
+        val dialCode = view.findViewById<TextView>(R.id.country_prefix)
+        dialCode.text = String.format("(%s)", dialPlan.countryCallingCode)
+
+        view.tag = dialPlan
+        return view
+    }
+
+    override fun getItem(position: Int): DialPlan {
+        return countries[position]
+    }
+
+    override fun getItemId(position: Int): Long {
+        return position.toLong()
+    }
+
+    override fun getCount(): Int {
+        return countries.size
+    }
+
+    override fun getFilter(): Filter {
+        return object : Filter() {
+            override fun performFiltering(constraint: CharSequence): FilterResults {
+                val filteredCountries = arrayListOf<DialPlan>()
+                for (dialPlan in Factory.instance().dialPlans) {
+                    if (dialPlan.country.contains(constraint, ignoreCase = true) ||
+                        dialPlan.countryCallingCode.contains(constraint)
+                    ) {
+                        filteredCountries.add(dialPlan)
+                    }
+                }
+                val filterResults = FilterResults()
+                filterResults.values = filteredCountries
+                return filterResults
+            }
+
+            @Suppress("UNCHECKED_CAST")
+            override fun publishResults(
+                constraint: CharSequence,
+                results: FilterResults
+            ) {
+                countries = results.values as ArrayList<DialPlan>
+                notifyDataSetChanged()
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/AbstractPhoneFragment.kt

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.linphone.activities.assistant.fragments
+
+import android.Manifest
+import android.app.AlertDialog
+import android.content.pm.PackageManager
+import androidx.fragment.app.Fragment
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.AbstractPhoneViewModel
+import org.linphone.core.tools.Log
+import org.linphone.utils.PermissionHelper
+import org.linphone.utils.PhoneNumberUtils
+
+abstract class AbstractPhoneFragment : Fragment() {
+    abstract val viewModel: AbstractPhoneViewModel
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        if (requestCode == 0) {
+            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                Log.i("[Assistant] READ_PHONE_NUMBERS permission granted")
+                updateFromDeviceInfo()
+            } else {
+                Log.w("[Assistant] READ_PHONE_NUMBERS permission denied")
+            }
+        }
+    }
+
+    protected fun checkPermission() {
+        if (!PermissionHelper.get().hasReadPhoneState()) {
+            Log.i("[Assistant] Asking for READ_PHONE_STATE permission")
+            requestPermissions(arrayOf(Manifest.permission.READ_PHONE_STATE), 0)
+        } else {
+            updateFromDeviceInfo()
+        }
+    }
+
+    private fun updateFromDeviceInfo() {
+        val phoneNumber = PhoneNumberUtils.getDevicePhoneNumber(requireContext())
+        val dialPlan = PhoneNumberUtils.getDialPlanForCurrentCountry(requireContext())
+        viewModel.updateFromPhoneNumberAndOrDialPlan(phoneNumber, dialPlan)
+    }
+
+    protected fun showPhoneNumberInfoDialog() {
+        AlertDialog.Builder(context)
+            .setTitle(getString(R.string.assistant_phone_number_info_title))
+            .setMessage(
+                getString(R.string.assistant_phone_number_link_info_content) + "\n" +
+                        getString(
+                            R.string.assistant_phone_number_link_info_content_already_account
+                        )
+            )
+            .show()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/AccountLoginFragment.kt

@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.AccountLoginViewModel
+import org.linphone.activities.assistant.viewmodels.AccountLoginViewModelFactory
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantAccountLoginFragmentBinding
+
+class AccountLoginFragment : AbstractPhoneFragment() {
+    private lateinit var binding: AssistantAccountLoginFragmentBinding
+    override lateinit var viewModel: AccountLoginViewModel
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantAccountLoginFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this, AccountLoginViewModelFactory(sharedViewModel.getAccountCreator())).get(AccountLoginViewModel::class.java)
+        binding.viewModel = viewModel
+
+        binding.setInfoClickListener {
+            showPhoneNumberInfoDialog()
+        }
+
+        binding.setSelectCountryClickListener {
+            CountryPickerFragment(viewModel).show(childFragmentManager, "CountryPicker")
+        }
+
+        viewModel.goToSmsValidationEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (findNavController().currentDestination?.id == R.id.accountLoginFragment) {
+                    val args = Bundle()
+                    args.putBoolean("IsLogin", true)
+                    args.putString("PhoneNumber", viewModel.accountCreator.phoneNumber)
+                    findNavController().navigate(R.id.action_accountLoginFragment_to_phoneAccountValidationFragment, args)
+                }
+            }
+        })
+
+        viewModel.leaveAssistantEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (coreContext.core.isEchoCancellerCalibrationRequired) {
+                    if (findNavController().currentDestination?.id == R.id.accountLoginFragment) {
+                        findNavController().navigate(R.id.action_accountLoginFragment_to_echoCancellerCalibrationFragment)
+                    }
+                } else {
+                    requireActivity().finish()
+                }
+            }
+        })
+
+        checkPermission()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/CountryPickerFragment.kt

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.text.Editable
+import android.text.TextWatcher
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.DialogFragment
+import org.linphone.activities.assistant.adapters.CountryPickerAdapter
+import org.linphone.core.DialPlan
+import org.linphone.databinding.AssistantCountryPickerFragmentBinding
+
+class CountryPickerFragment(private val listener: CountryPickedListener) : DialogFragment() {
+    private lateinit var binding: AssistantCountryPickerFragmentBinding
+    private lateinit var adapter: CountryPickerAdapter
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantCountryPickerFragmentBinding.inflate(inflater, container, false)
+
+        adapter = CountryPickerAdapter()
+        binding.countryList.adapter = adapter
+
+        binding.countryList.setOnItemClickListener { _, _, position, _ ->
+            if (position > 0 && position < adapter.count) {
+                val dialPlan = adapter.getItem(position)
+                listener.onCountryClicked(dialPlan)
+            }
+            dismiss()
+        }
+
+        binding.searchCountry.addTextChangedListener(object : TextWatcher {
+            override fun afterTextChanged(s: Editable?) {
+                adapter.filter.filter(s)
+            }
+
+            override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) { }
+
+            override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) { }
+        })
+
+        return binding.root
+    }
+
+    interface CountryPickedListener {
+        fun onCountryClicked(dialPlan: DialPlan)
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/EchoCancellerCalibrationFragment.kt

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.activities.assistant.viewmodels.EchoCancellerCalibrationViewModel
+import org.linphone.core.tools.Log
+import org.linphone.databinding.AssistantEchoCancellerCalibrationFragmentBinding
+import org.linphone.utils.PermissionHelper
+
+class EchoCancellerCalibrationFragment : Fragment() {
+    private lateinit var binding: AssistantEchoCancellerCalibrationFragmentBinding
+    private lateinit var viewModel: EchoCancellerCalibrationViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantEchoCancellerCalibrationFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        viewModel = ViewModelProvider(this).get(EchoCancellerCalibrationViewModel::class.java)
+        binding.viewModel = viewModel
+
+        viewModel.echoCalibrationTerminated.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                requireActivity().finish()
+            }
+        })
+
+        if (!PermissionHelper.required(requireContext()).hasRecordAudioPermission()) {
+            Log.i("[Echo Canceller Calibration] Asking for RECORD_AUDIO permission")
+            requestPermissions(arrayOf(android.Manifest.permission.RECORD_AUDIO), 0)
+        } else {
+            viewModel.startEchoCancellerCalibration()
+        }
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        val granted = grantResults[0] == PackageManager.PERMISSION_GRANTED
+        if (granted) {
+            Log.i("[Echo Canceller Calibration] RECORD_AUDIO permission granted")
+            viewModel.startEchoCancellerCalibration()
+        } else {
+            Log.w("[Echo Canceller Calibration] RECORD_AUDIO permission denied")
+            requireActivity().finish()
+        }
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/EmailAccountCreationFragment.kt

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.EmailAccountCreationViewModel
+import org.linphone.activities.assistant.viewmodels.EmailAccountCreationViewModelFactory
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantEmailAccountCreationFragmentBinding
+
+class EmailAccountCreationFragment : Fragment() {
+    private lateinit var binding: AssistantEmailAccountCreationFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    private lateinit var viewModel: EmailAccountCreationViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantEmailAccountCreationFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this, EmailAccountCreationViewModelFactory(sharedViewModel.getAccountCreator())).get(EmailAccountCreationViewModel::class.java)
+        binding.viewModel = viewModel
+
+        viewModel.goToEmailValidationEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (findNavController().currentDestination?.id == R.id.emailAccountCreationFragment) {
+                    findNavController().navigate(R.id.action_emailAccountCreationFragment_to_emailAccountValidationFragment)
+                }
+            }
+        })
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/EmailAccountValidationFragment.kt

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.*
+import org.linphone.databinding.AssistantEmailAccountValidationFragmentBinding
+
+class EmailAccountValidationFragment : Fragment() {
+    private lateinit var binding: AssistantEmailAccountValidationFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    private lateinit var viewModel: EmailAccountValidationViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantEmailAccountValidationFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this, EmailAccountValidationViewModelFactory(sharedViewModel.getAccountCreator())).get(EmailAccountValidationViewModel::class.java)
+        binding.viewModel = viewModel
+
+        viewModel.leaveAssistantEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (findNavController().currentDestination?.id == R.id.emailAccountValidationFragment) {
+                    val args = Bundle()
+                    args.putBoolean("AllowSkip", true)
+                    args.putString("Username", viewModel.accountCreator.username)
+                    args.putString("Password", viewModel.accountCreator.password)
+                    findNavController().navigate(R.id.action_emailAccountValidationFragment_to_phoneAccountLinkingFragment, args)
+                }
+            }
+        })
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/GenericAccountLoginFragment.kt

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.GenericLoginViewModel
+import org.linphone.activities.assistant.viewmodels.GenericLoginViewModelFactory
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantGenericAccountLoginFragmentBinding
+
+class GenericAccountLoginFragment : Fragment() {
+    private lateinit var binding: AssistantGenericAccountLoginFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    private lateinit var viewModel: GenericLoginViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantGenericAccountLoginFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this, GenericLoginViewModelFactory(sharedViewModel.getAccountCreator(true))).get(GenericLoginViewModel::class.java)
+        binding.viewModel = viewModel
+
+        viewModel.leaveAssistantEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (coreContext.core.isEchoCancellerCalibrationRequired) {
+                    if (findNavController().currentDestination?.id == R.id.genericAccountLoginFragment) {
+                        findNavController().navigate(R.id.action_genericAccountLoginFragment_to_echoCancellerCalibrationFragment)
+                    }
+                } else {
+                    requireActivity().finish()
+                }
+            }
+        })
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/PhoneAccountCreationFragment.kt

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.PhoneAccountCreationViewModel
+import org.linphone.activities.assistant.viewmodels.PhoneAccountCreationViewModelFactory
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantPhoneAccountCreationFragmentBinding
+
+class PhoneAccountCreationFragment : AbstractPhoneFragment() {
+    private lateinit var binding: AssistantPhoneAccountCreationFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    override lateinit var viewModel: PhoneAccountCreationViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantPhoneAccountCreationFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this, PhoneAccountCreationViewModelFactory(sharedViewModel.getAccountCreator())).get(PhoneAccountCreationViewModel::class.java)
+        binding.viewModel = viewModel
+
+        binding.setInfoClickListener {
+            showPhoneNumberInfoDialog()
+        }
+
+        binding.setSelectCountryClickListener {
+            CountryPickerFragment(viewModel).show(childFragmentManager, "CountryPicker")
+        }
+
+        viewModel.goToSmsValidationEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (findNavController().currentDestination?.id == R.id.phoneAccountCreationFragment) {
+                    val args = Bundle()
+                    args.putBoolean("IsCreation", true)
+                    args.putString("PhoneNumber", viewModel.accountCreator.phoneNumber)
+                    findNavController().navigate(R.id.action_phoneAccountCreationFragment_to_phoneAccountValidationFragment, args)
+                }
+            }
+        })
+
+        checkPermission()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/PhoneAccountLinkingFragment.kt

@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.LinphoneApplication
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.*
+import org.linphone.core.tools.Log
+import org.linphone.databinding.AssistantPhoneAccountLinkingFragmentBinding
+
+class PhoneAccountLinkingFragment : AbstractPhoneFragment() {
+    private lateinit var binding: AssistantPhoneAccountLinkingFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    override lateinit var viewModel: PhoneAccountLinkingViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantPhoneAccountLinkingFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val accountCreator = sharedViewModel.getAccountCreator()
+        viewModel = ViewModelProvider(this, PhoneAccountLinkingViewModelFactory(accountCreator)).get(PhoneAccountLinkingViewModel::class.java)
+        binding.viewModel = viewModel
+
+        val username = arguments?.getString("Username")
+        Log.i("[Phone Account Linking] username to link is $username")
+        viewModel.username.value = username
+
+        val password = arguments?.getString("Password")
+        accountCreator.password = password
+
+        val ha1 = arguments?.getString("HA1")
+        accountCreator.ha1 = ha1
+
+        val allowSkip = arguments?.getBoolean("AllowSkip", false)
+        viewModel.allowSkip.value = allowSkip
+
+        binding.setInfoClickListener {
+            showPhoneNumberInfoDialog()
+        }
+
+        binding.setSelectCountryClickListener {
+            CountryPickerFragment(viewModel).show(childFragmentManager, "CountryPicker")
+        }
+
+        viewModel.goToSmsValidationEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (findNavController().currentDestination?.id == R.id.phoneAccountLinkingFragment) {
+                    val args = Bundle()
+                    args.putBoolean("IsLinking", true)
+                    args.putString("PhoneNumber", viewModel.accountCreator.phoneNumber)
+                    findNavController().navigate(R.id.action_phoneAccountLinkingFragment_to_phoneAccountValidationFragment, args)
+                }
+            }
+        })
+
+        viewModel.leaveAssistantEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                if (findNavController().currentDestination?.id == R.id.phoneAccountLinkingFragment) {
+                    if (LinphoneApplication.coreContext.core.isEchoCancellerCalibrationRequired) {
+                        if (findNavController().currentDestination?.id == R.id.phoneAccountValidationFragment) {
+                            findNavController().navigate(R.id.action_phoneAccountLinkingFragment_to_echoCancellerCalibrationFragment)
+                        }
+                    } else {
+                        requireActivity().finish()
+                    }
+                }
+            }
+        })
+
+        checkPermission()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/PhoneAccountValidationFragment.kt

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.content.ClipboardManager
+import android.content.Context.CLIPBOARD_SERVICE
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.assistant.viewmodels.PhoneAccountValidationViewModel
+import org.linphone.activities.assistant.viewmodels.PhoneAccountValidationViewModelFactory
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantPhoneAccountValidationFragmentBinding
+
+class PhoneAccountValidationFragment : Fragment() {
+    private lateinit var binding: AssistantPhoneAccountValidationFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    private lateinit var viewModel: PhoneAccountValidationViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantPhoneAccountValidationFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this, PhoneAccountValidationViewModelFactory(sharedViewModel.getAccountCreator())).get(PhoneAccountValidationViewModel::class.java)
+        binding.viewModel = viewModel
+
+        viewModel.phoneNumber.value = arguments?.getString("PhoneNumber")
+        viewModel.isLogin.value = arguments?.getBoolean("IsLogin", false)
+        viewModel.isCreation.value = arguments?.getBoolean("IsCreation", false)
+        viewModel.isLinking.value = arguments?.getBoolean("IsLinking", false)
+
+        viewModel.leaveAssistantEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                when {
+                    viewModel.isLogin.value == true || viewModel.isCreation.value == true -> {
+                        if (coreContext.core.isEchoCancellerCalibrationRequired) {
+                            if (findNavController().currentDestination?.id == R.id.phoneAccountValidationFragment) {
+                                findNavController().navigate(R.id.action_phoneAccountValidationFragment_to_echoCancellerCalibrationFragment)
+                            }
+                        } else {
+                            requireActivity().finish()
+                        }
+                    }
+                    viewModel.isLinking.value == true -> {
+                        if (findNavController().currentDestination?.id == R.id.phoneAccountValidationFragment) {
+                            val args = Bundle()
+                            args.putString("Identity", "sip:${viewModel.accountCreator.username}@${viewModel.accountCreator.domain}")
+                            findNavController().navigate(R.id.action_phoneAccountValidationFragment_to_accountSettingsFragment, args)
+                        }
+                    }
+                }
+            }
+        })
+
+        val clipboard = requireContext().getSystemService(CLIPBOARD_SERVICE) as ClipboardManager
+        clipboard.addPrimaryClipChangedListener {
+            val data = clipboard.primaryClip
+            if (data != null && data.itemCount > 0) {
+                val clip = data.getItemAt(0).text.toString()
+                if (clip.length == 4) {
+                    viewModel.code.value = clip
+                }
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/QrCodeFragment.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.activities.assistant.viewmodels.QrCodeViewModel
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.core.tools.Log
+import org.linphone.databinding.AssistantQrCodeFragmentBinding
+import org.linphone.utils.PermissionHelper
+
+class QrCodeFragment : Fragment() {
+    private lateinit var binding: AssistantQrCodeFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    private lateinit var viewModel: QrCodeViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantQrCodeFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this).get(QrCodeViewModel::class.java)
+        binding.viewModel = viewModel
+
+        viewModel.qrCodeFoundEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { url ->
+                sharedViewModel.remoteProvisioningUrl.value = url
+                findNavController().navigateUp()
+            }
+        })
+        viewModel.setBackCamera()
+
+        if (!PermissionHelper.required(requireContext()).hasRecordAudioPermission()) {
+            Log.i("[QR Code] Asking for CAMERA permission")
+            requestPermissions(arrayOf(android.Manifest.permission.CAMERA), 0)
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        coreContext.core.nativePreviewWindowId = binding.qrCodeCaptureTexture
+        coreContext.core.enableQrcodeVideoPreview(true)
+        coreContext.core.enableVideoPreview(true)
+    }
+
+    override fun onPause() {
+        coreContext.core.nativePreviewWindowId = null
+        coreContext.core.enableQrcodeVideoPreview(false)
+        coreContext.core.enableVideoPreview(false)
+
+        super.onPause()
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        val granted = grantResults[0] == PackageManager.PERMISSION_GRANTED
+        if (granted) {
+            Log.i("[QR Code] CAMERA permission granted")
+        } else {
+            Log.w("[QR Code] CAMERA permission denied")
+            findNavController().navigateUp()
+        }
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/RemoteProvisioningFragment.kt

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.util.Patterns
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.assistant.AssistantActivity
+import org.linphone.activities.assistant.viewmodels.RemoteProvisioningViewModel
+import org.linphone.activities.assistant.viewmodels.SharedAssistantViewModel
+import org.linphone.databinding.AssistantRemoteProvisioningFragmentBinding
+
+class RemoteProvisioningFragment : Fragment() {
+    private lateinit var binding: AssistantRemoteProvisioningFragmentBinding
+    private lateinit var sharedViewModel: SharedAssistantViewModel
+    private lateinit var viewModel: RemoteProvisioningViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantRemoteProvisioningFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedAssistantViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        viewModel = ViewModelProvider(this).get(RemoteProvisioningViewModel::class.java)
+        binding.viewModel = viewModel
+
+        binding.setApplyClickListener {
+            val url = viewModel.urlToFetch.value.orEmpty()
+            if (Patterns.WEB_URL.matcher(url).matches()) {
+                viewModel.fetchAndApply(url)
+            } else {
+                val activity = requireActivity() as AssistantActivity
+                activity.showSnackBar(R.string.assistant_remote_provisioning_wrong_format)
+            }
+        }
+
+        binding.setQrCodeClickListener {
+            if (findNavController().currentDestination?.id == R.id.remoteProvisioningFragment) {
+                findNavController().navigate(R.id.action_remoteProvisioningFragment_to_qrCodeFragment)
+            }
+        }
+
+        viewModel.fetchSuccessfulEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { success ->
+                if (success) {
+                    if (coreContext.core.isEchoCancellerCalibrationRequired) {
+                        if (findNavController().currentDestination?.id == R.id.remoteProvisioningFragment) {
+                            findNavController().navigate(R.id.action_remoteProvisioningFragment_to_echoCancellerCalibrationFragment)
+                        }
+                    } else {
+                        requireActivity().finish()
+                    }
+                } else {
+                    val activity = requireActivity() as AssistantActivity
+                    activity.showSnackBar(R.string.assistant_remote_provisioning_failure)
+                }
+            }
+        })
+
+        viewModel.urlToFetch.value = sharedViewModel.remoteProvisioningUrl.value ?: coreContext.core.provisioningUri
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        sharedViewModel.remoteProvisioningUrl.value = null
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/TopBarFragment.kt

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import org.linphone.databinding.AssistantTopBarFragmentBinding
+
+class TopBarFragment : Fragment() {
+    private lateinit var binding: AssistantTopBarFragmentBinding
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantTopBarFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        binding.setBackClickListener {
+            if (!findNavController().popBackStack()) {
+                activity?.finish()
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/activities/assistant/fragments/WelcomeFragment.kt

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import org.linphone.R
+import org.linphone.databinding.AssistantWelcomeFragmentBinding
+
+class WelcomeFragment : Fragment() {
+    private lateinit var binding: AssistantWelcomeFragmentBinding
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AssistantWelcomeFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        binding.setCreateAccountClickListener {
+            if (findNavController().currentDestination?.id == R.id.welcomeFragment) {
+                if (resources.getBoolean(R.bool.isTablet)) {
+                    findNavController().navigate(R.id.action_welcomeFragment_to_emailAccountCreationFragment)
+                } else {
+                    findNavController().navigate(R.id.action_welcomeFragment_to_phoneAccountCreationFragment)
+                }
+            }
+        }
+
+        binding.setAccountLoginClickListener {
+            if (findNavController().currentDestination?.id == R.id.welcomeFragment) {
+                findNavController().navigate(R.id.action_welcomeFragment_to_accountLoginFragment)
+            }
+        }
+
+        binding.setGenericAccountLoginClickListener {
+            if (findNavController().currentDestination?.id == R.id.welcomeFragment) {
+                findNavController().navigate(R.id.action_welcomeFragment_to_genericAccountLoginFragment)
+            }
+        }
+
+        binding.setRemoteProvisioningClickListener {
+            if (findNavController().currentDestination?.id == R.id.welcomeFragment) {
+                findNavController().navigate(R.id.action_welcomeFragment_to_remoteProvisioningFragment)
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/AbstractPhoneViewModel.kt

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Transformations
+import androidx.lifecycle.ViewModel
+import org.linphone.activities.assistant.fragments.CountryPickerFragment
+import org.linphone.core.AccountCreator
+import org.linphone.core.DialPlan
+import org.linphone.core.tools.Log
+import org.linphone.utils.PhoneNumberUtils
+
+abstract class AbstractPhoneViewModel(val accountCreator: AccountCreator) : ViewModel(),
+    CountryPickerFragment.CountryPickedListener {
+
+    val prefix = MutableLiveData<String>()
+
+    val phoneNumber = MutableLiveData<String>()
+    val phoneNumberError = MutableLiveData<String>()
+
+    val countryName: LiveData<String> = Transformations.switchMap(prefix) {
+        getCountryNameFromPrefix(it)
+    }
+
+    init {
+        prefix.value = "+"
+    }
+
+    override fun onCountryClicked(dialPlan: DialPlan) {
+        prefix.value = "+${dialPlan.countryCallingCode}"
+    }
+
+    fun isPhoneNumberOk(): Boolean {
+        return countryName.value.orEmpty().isNotEmpty() && phoneNumber.value.orEmpty().isNotEmpty() && phoneNumberError.value.orEmpty().isEmpty()
+    }
+
+    fun updateFromPhoneNumberAndOrDialPlan(number: String?, dialPlan: DialPlan?) {
+        if (dialPlan != null) {
+            Log.i("[Assistant] Found prefix from dial plan: ${dialPlan.countryCallingCode}")
+            prefix.value = "+${dialPlan.countryCallingCode}"
+        }
+        if (number != null) {
+            Log.i("[Assistant] Found phone number: $number")
+            phoneNumber.value = number
+        }
+    }
+
+    private fun getCountryNameFromPrefix(prefix: String?): MutableLiveData<String> {
+        val country = MutableLiveData<String>()
+        country.value = ""
+
+        if (prefix != null && prefix.isNotEmpty()) {
+            val countryCode = if (prefix.first() == '+') prefix.substring(1) else prefix
+            val dialPlan = PhoneNumberUtils.getDialPlanFromCountryCallingPrefix(countryCode)
+            Log.i("[Assistant] Found dial plan $dialPlan from country code: $countryCode")
+            country.value = dialPlan?.country
+        }
+        return country
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/AccountLoginViewModel.kt

@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.*
+import org.linphone.core.AccountCreator
+import org.linphone.core.AccountCreatorListenerStub
+import org.linphone.core.ProxyConfig
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class AccountLoginViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return AccountLoginViewModel(accountCreator) as T
+    }
+}
+
+class AccountLoginViewModel(accountCreator: AccountCreator) : AbstractPhoneViewModel(accountCreator) {
+    val loginWithUsernamePassword = MutableLiveData<Boolean>()
+
+    val username = MutableLiveData<String>()
+
+    val password = MutableLiveData<String>()
+
+    val loginEnabled: MediatorLiveData<Boolean> = MediatorLiveData()
+
+    val waitForServerAnswer = MutableLiveData<Boolean>()
+
+    val leaveAssistantEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    val goToSmsValidationEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    private val listener = object : AccountCreatorListenerStub() {
+        override fun onRecoverAccount(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Assistant] [Account Login] Recover account status is $status")
+            waitForServerAnswer.value = false
+
+            if (status == AccountCreator.Status.RequestOk) {
+                goToSmsValidationEvent.value = Event(true)
+            } else {
+                // TODO: show error
+            }
+        }
+    }
+
+    init {
+        accountCreator.addListener(listener)
+
+        loginWithUsernamePassword.value = false
+
+        loginEnabled.value = false
+        loginEnabled.addSource(prefix) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(phoneNumber) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(username) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(password) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(loginWithUsernamePassword) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(phoneNumberError) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+    }
+
+    override fun onCleared() {
+        accountCreator.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun login() {
+        if (loginWithUsernamePassword.value == true) {
+            accountCreator.username = username.value
+            accountCreator.password = password.value
+            Log.i("[Assistant] [Account Login] Username is ${accountCreator.username}")
+
+            waitForServerAnswer.value = true
+            if (createProxyConfig()) {
+                leaveAssistantEvent.value = Event(true)
+            } else {
+                waitForServerAnswer.value = false
+                // TODO: show error
+            }
+        } else {
+            accountCreator.setPhoneNumber(phoneNumber.value, prefix.value)
+            accountCreator.username = accountCreator.phoneNumber
+            Log.i("[Assistant] [Account Login] Phone number is ${accountCreator.phoneNumber}")
+
+            waitForServerAnswer.value = true
+            val status = accountCreator.recoverAccount()
+            Log.i("[Assistant] [Account Login] Recover account returned $status")
+            if (status != AccountCreator.Status.RequestOk) {
+                waitForServerAnswer.value = false
+                // TODO: show error
+            }
+        }
+    }
+
+    private fun isLoginButtonEnabled(): Boolean {
+        return if (loginWithUsernamePassword.value == true) {
+            username.value.orEmpty().isNotEmpty() && password.value.orEmpty().isNotEmpty()
+        } else {
+            isPhoneNumberOk()
+        }
+    }
+
+    private fun createProxyConfig(): Boolean {
+        val proxyConfig: ProxyConfig? = accountCreator.createProxyConfig()
+
+        if (proxyConfig == null) {
+            Log.e("[Assistant] [Account Login] Account creator couldn't create proxy config")
+            // TODO: show error
+            return false
+        }
+
+        proxyConfig.isPushNotificationAllowed = true
+
+        Log.i("[Assistant] [Account Login] Proxy config created")
+        return true
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/EchoCancellerCalibrationViewModel.kt

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.core.EcCalibratorStatus
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class EchoCancellerCalibrationViewModel : ViewModel() {
+    val echoCalibrationTerminated = MutableLiveData<Event<Boolean>>()
+
+    private val listener = object : CoreListenerStub() {
+        override fun onEcCalibrationResult(core: Core, status: EcCalibratorStatus, delayMs: Int) {
+            if (status == EcCalibratorStatus.InProgress) return
+            echoCancellerCalibrationFinished(status, delayMs)
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+    }
+
+    fun startEchoCancellerCalibration() {
+        coreContext.core.startEchoCancellerCalibration()
+    }
+
+    fun echoCancellerCalibrationFinished(status: EcCalibratorStatus, delay: Int) {
+        coreContext.core.removeListener(listener)
+        when (status) {
+            EcCalibratorStatus.DoneNoEcho -> {
+                Log.i("[Echo Canceller Calibration] Done, no echo")
+            }
+            EcCalibratorStatus.Done -> {
+                Log.i("[Echo Canceller Calibration] Done, delay is ${delay}ms")
+            }
+            EcCalibratorStatus.Failed -> {
+                Log.w("[Echo Canceller Calibration] Failed")
+            }
+        }
+        echoCalibrationTerminated.value = Event(true)
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/EmailAccountCreationViewModel.kt

@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MediatorLiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.R
+import org.linphone.core.AccountCreator
+import org.linphone.core.AccountCreatorListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.AppUtils
+import org.linphone.utils.Event
+
+class EmailAccountCreationViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return EmailAccountCreationViewModel(accountCreator) as T
+    }
+}
+
+class EmailAccountCreationViewModel(val accountCreator: AccountCreator) : ViewModel() {
+    val username = MutableLiveData<String>()
+    val usernameError = MutableLiveData<String>()
+
+    val email = MutableLiveData<String>()
+    val emailError = MutableLiveData<String>()
+
+    val password = MutableLiveData<String>()
+    val passwordError = MutableLiveData<String>()
+
+    val passwordConfirmation = MutableLiveData<String>()
+    val passwordConfirmationError = MutableLiveData<String>()
+
+    val createEnabled: MediatorLiveData<Boolean> = MediatorLiveData()
+
+    val waitForServerAnswer = MutableLiveData<Boolean>()
+
+    val goToEmailValidationEvent = MutableLiveData<Event<Boolean>>()
+
+    private val listener = object : AccountCreatorListenerStub() {
+        override fun onIsAccountExist(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Assistant] [Account Creation] onIsAccountExist status is $status")
+            when (status) {
+                AccountCreator.Status.AccountExist, AccountCreator.Status.AccountExistWithAlias -> {
+                    waitForServerAnswer.value = false
+                    usernameError.value = AppUtils.getString(R.string.assistant_error_username_already_exists)
+                }
+                AccountCreator.Status.AccountNotExist -> {
+                    val createAccountStatus = creator.createAccount()
+                    if (createAccountStatus != AccountCreator.Status.RequestOk) {
+                        waitForServerAnswer.value = false
+                        // TODO: show error
+                    }
+                }
+                else -> {
+                    waitForServerAnswer.value = false
+                    // TODO: show error
+                }
+            }
+        }
+
+        override fun onCreateAccount(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Account Creation] onCreateAccount status is $status")
+            waitForServerAnswer.value = false
+
+            when (status) {
+                AccountCreator.Status.AccountCreated -> {
+                    goToEmailValidationEvent.value = Event(true)
+                }
+                else -> {
+                    // TODO: show error
+                }
+            }
+        }
+    }
+
+    init {
+        accountCreator.addListener(listener)
+
+        createEnabled.value = false
+        createEnabled.addSource(username) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(usernameError) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(email) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(emailError) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(password) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(passwordError) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(passwordConfirmation) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(passwordConfirmationError) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+    }
+
+    override fun onCleared() {
+        accountCreator.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun create() {
+        accountCreator.username = username.value
+        accountCreator.password = password.value
+        accountCreator.email = email.value
+
+        waitForServerAnswer.value = true
+        val status = accountCreator.isAccountExist
+        Log.i("[Assistant] [Account Creation] Account exists returned $status")
+        if (status != AccountCreator.Status.RequestOk) {
+            waitForServerAnswer.value = false
+            // TODO: show error
+        }
+    }
+
+    private fun isCreateButtonEnabled(): Boolean {
+        return username.value.orEmpty().isNotEmpty() &&
+                email.value.orEmpty().isNotEmpty() &&
+                password.value.orEmpty().isNotEmpty() &&
+                passwordConfirmation.value.orEmpty().isNotEmpty() &&
+                password.value == passwordConfirmation.value &&
+                usernameError.value.orEmpty().isEmpty() &&
+                emailError.value.orEmpty().isEmpty() &&
+                passwordError.value.orEmpty().isEmpty() &&
+                passwordConfirmationError.value.orEmpty().isEmpty()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/EmailAccountValidationViewModel.kt

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.core.AccountCreator
+import org.linphone.core.AccountCreatorListenerStub
+import org.linphone.core.ProxyConfig
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class EmailAccountValidationViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return EmailAccountValidationViewModel(accountCreator) as T
+    }
+}
+
+class EmailAccountValidationViewModel(val accountCreator: AccountCreator) : ViewModel() {
+    val email = MutableLiveData<String>()
+
+    val waitForServerAnswer = MutableLiveData<Boolean>()
+
+    val leaveAssistantEvent = MutableLiveData<Event<Boolean>>()
+
+    private val listener = object : AccountCreatorListenerStub() {
+        override fun onIsAccountActivated(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Account Validation] onIsAccountActivated status is $status")
+            waitForServerAnswer.value = false
+
+            when (status) {
+                AccountCreator.Status.AccountActivated -> {
+                    if (createProxyConfig()) {
+                        leaveAssistantEvent.value = Event(true)
+                    } else {
+                        // TODO: show error
+                    }
+                }
+                AccountCreator.Status.AccountNotActivated -> {
+                    // TODO: show error
+                }
+                else -> {
+                    // TODO: show error
+                }
+            }
+        }
+    }
+
+    init {
+        accountCreator.addListener(listener)
+        email.value = accountCreator.email
+    }
+
+    override fun onCleared() {
+        accountCreator.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun finish() {
+        waitForServerAnswer.value = true
+        val status = accountCreator.isAccountActivated
+        Log.i("[Assistant] [Account Validation] Account exists returned $status")
+        if (status != AccountCreator.Status.RequestOk) {
+            waitForServerAnswer.value = false
+            // TODO: show error
+        }
+    }
+
+    private fun createProxyConfig(): Boolean {
+        val proxyConfig: ProxyConfig? = accountCreator.createProxyConfig()
+
+        if (proxyConfig == null) {
+            Log.e("[Assistant] [Account Validation] Account creator couldn't create proxy config")
+            // TODO: show error
+            return false
+        }
+
+        proxyConfig.isPushNotificationAllowed = true
+
+        Log.i("[Assistant] [Account Validation] Proxy config created")
+        return true
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/GenericLoginViewModel.kt

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MediatorLiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.core.AccountCreator
+import org.linphone.core.ProxyConfig
+import org.linphone.core.TransportType
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class GenericLoginViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return GenericLoginViewModel(accountCreator) as T
+    }
+}
+
+class GenericLoginViewModel(private val accountCreator: AccountCreator) : ViewModel() {
+    val username = MutableLiveData<String>()
+
+    val password = MutableLiveData<String>()
+
+    val domain = MutableLiveData<String>()
+
+    val displayName = MutableLiveData<String>()
+
+    val transport = MutableLiveData<TransportType>()
+
+    val loginEnabled: MediatorLiveData<Boolean> = MediatorLiveData()
+
+    val leaveAssistantEvent = MutableLiveData<Event<Boolean>>()
+
+    init {
+        transport.value = TransportType.Tls
+
+        loginEnabled.value = false
+        loginEnabled.addSource(username) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(password) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+        loginEnabled.addSource(domain) {
+            loginEnabled.value = isLoginButtonEnabled()
+        }
+    }
+
+    fun setTransport(transportType: TransportType) {
+        transport.value = transportType
+    }
+
+    fun createProxyConfig() {
+        accountCreator.username = username.value
+        accountCreator.password = password.value
+        accountCreator.domain = domain.value
+        accountCreator.displayName = displayName.value
+        accountCreator.transport = transport.value
+
+        val proxyConfig: ProxyConfig? = accountCreator.createProxyConfig()
+
+        if (proxyConfig == null) {
+            Log.e("[Assistant] [Generic Login] Account creator couldn't create proxy config")
+            // TODO: show error
+            return
+        }
+
+        Log.i("[Assistant] [Generic Login] Proxy config created")
+        leaveAssistantEvent.value = Event(true)
+    }
+
+    private fun isLoginButtonEnabled(): Boolean {
+        return username.value.orEmpty().isNotEmpty() && domain.value.orEmpty().isNotEmpty() && password.value.orEmpty().isNotEmpty()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/PhoneAccountCreationViewModel.kt

@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MediatorLiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
+import org.linphone.core.AccountCreator
+import org.linphone.core.AccountCreatorListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.AppUtils
+import org.linphone.utils.Event
+
+class PhoneAccountCreationViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return PhoneAccountCreationViewModel(accountCreator) as T
+    }
+}
+
+class PhoneAccountCreationViewModel(accountCreator: AccountCreator) : AbstractPhoneViewModel(accountCreator) {
+    val username = MutableLiveData<String>()
+    val useUsername = MutableLiveData<Boolean>()
+    val usernameError = MutableLiveData<String>()
+
+    val createEnabled: MediatorLiveData<Boolean> = MediatorLiveData()
+
+    val waitForServerAnswer = MutableLiveData<Boolean>()
+
+    val goToSmsValidationEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    private val listener = object : AccountCreatorListenerStub() {
+        override fun onIsAccountExist(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Phone Account Creation] onIsAccountExist status is $status")
+            when (status) {
+                AccountCreator.Status.AccountExist, AccountCreator.Status.AccountExistWithAlias -> {
+                    waitForServerAnswer.value = false
+                    if (useUsername.value == true) {
+                        usernameError.value = AppUtils.getString(R.string.assistant_error_username_already_exists)
+                    } else {
+                        phoneNumberError.value = AppUtils.getString(R.string.assistant_error_phone_number_already_exists)
+                    }
+                }
+                AccountCreator.Status.AccountNotExist -> {
+                    val createAccountStatus = creator.createAccount()
+                    Log.i("[Phone Account Creation] createAccount returned $createAccountStatus")
+                    if (createAccountStatus != AccountCreator.Status.RequestOk) {
+                        waitForServerAnswer.value = false
+                        // TODO: show error
+                    }
+                }
+                else -> {
+                    waitForServerAnswer.value = false
+                    // TODO: show error
+                }
+            }
+        }
+
+        override fun onCreateAccount(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Phone Account Creation] onCreateAccount status is $status")
+            waitForServerAnswer.value = false
+            when (status) {
+                AccountCreator.Status.AccountCreated -> {
+                    goToSmsValidationEvent.value = Event(true)
+                }
+                AccountCreator.Status.AccountExistWithAlias -> {
+                    phoneNumberError.value = AppUtils.getString(R.string.assistant_error_phone_number_already_exists)
+                }
+                else -> {
+                    // TODO: show error
+                }
+            }
+        }
+    }
+
+    init {
+        useUsername.value = false
+        accountCreator.addListener(listener)
+
+        createEnabled.value = false
+        createEnabled.addSource(prefix) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(phoneNumber) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(useUsername) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(username) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(usernameError) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+        createEnabled.addSource(phoneNumberError) {
+            createEnabled.value = isCreateButtonEnabled()
+        }
+    }
+
+    override fun onCleared() {
+        accountCreator.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun create() {
+        accountCreator.setPhoneNumber(phoneNumber.value, prefix.value)
+        if (useUsername.value == true) {
+            accountCreator.username = username.value
+        } else {
+            accountCreator.username = accountCreator.phoneNumber
+        }
+
+        waitForServerAnswer.value = true
+        val status = accountCreator.isAccountExist
+        Log.i("[Phone Account Creation] isAccountExist returned $status")
+        if (status != AccountCreator.Status.RequestOk) {
+            waitForServerAnswer.value = false
+            // TODO: show error
+        }
+    }
+
+    private fun isCreateButtonEnabled(): Boolean {
+        val usernameRegexp = corePreferences.config.getString("assistant", "username_regex", "^[a-z0-9+_.\\-]*\$")
+        return isPhoneNumberOk() &&
+                (useUsername.value == false ||
+                    username.value.orEmpty().matches(Regex(usernameRegexp)) &&
+                    username.value.orEmpty().isNotEmpty() &&
+                    usernameError.value.orEmpty().isEmpty())
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/PhoneAccountLinkingViewModel.kt

@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.*
+import org.linphone.core.AccountCreator
+import org.linphone.core.AccountCreatorListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class PhoneAccountLinkingViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return PhoneAccountLinkingViewModel(accountCreator) as T
+    }
+}
+
+class PhoneAccountLinkingViewModel(accountCreator: AccountCreator) : AbstractPhoneViewModel(accountCreator) {
+    val username = MutableLiveData<String>()
+
+    val allowSkip = MutableLiveData<Boolean>()
+
+    val linkEnabled: MediatorLiveData<Boolean> = MediatorLiveData()
+
+    val waitForServerAnswer = MutableLiveData<Boolean>()
+
+    val leaveAssistantEvent = MutableLiveData<Event<Boolean>>()
+
+    val goToSmsValidationEvent = MutableLiveData<Event<Boolean>>()
+
+    private val listener = object : AccountCreatorListenerStub() {
+        override fun onIsAliasUsed(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Phone Account Linking] onIsAliasUsed status is $status")
+
+            when (status) {
+                AccountCreator.Status.AliasNotExist -> {
+                    if (creator.linkAccount() != AccountCreator.Status.RequestOk) {
+                        Log.e("[Phone Account Linking] linkAccount status is $status")
+                        waitForServerAnswer.value = false
+                        // TODO: show error
+                    }
+                }
+                AccountCreator.Status.AliasExist, AccountCreator.Status.AliasIsAccount -> {
+                    waitForServerAnswer.value = false
+                    // TODO: show error
+                }
+                else -> {
+                    waitForServerAnswer.value = false
+                    // TODO: show error
+                }
+            }
+        }
+
+        override fun onLinkAccount(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Phone Account Linking] onLinkAccount status is $status")
+            waitForServerAnswer.value = false
+
+            when (status) {
+                AccountCreator.Status.RequestOk -> {
+                    goToSmsValidationEvent.value = Event(true)
+                }
+                else -> {
+                    // TODO: show error
+                }
+            }
+        }
+    }
+
+    init {
+        accountCreator.addListener(listener)
+
+        linkEnabled.value = false
+        linkEnabled.addSource(prefix) {
+            linkEnabled.value = isLinkButtonEnabled()
+        }
+        linkEnabled.addSource(phoneNumber) {
+            linkEnabled.value = isLinkButtonEnabled()
+        }
+        linkEnabled.addSource(phoneNumberError) {
+            linkEnabled.value = isLinkButtonEnabled()
+        }
+    }
+
+    override fun onCleared() {
+        accountCreator.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun link() {
+        accountCreator.setPhoneNumber(phoneNumber.value, prefix.value)
+        accountCreator.username = username.value
+        Log.i("[Assistant] [Phone Account Linking] Phone number is ${accountCreator.phoneNumber}")
+
+        waitForServerAnswer.value = true
+        val status: AccountCreator.Status = accountCreator.isAliasUsed
+        Log.i("[Phone Account Linking] isAliasUsed returned $status")
+        if (status != AccountCreator.Status.RequestOk) {
+            waitForServerAnswer.value = false
+            // TODO: show error
+        }
+    }
+
+    fun skip() {
+        leaveAssistantEvent.value = Event(true)
+    }
+
+    private fun isLinkButtonEnabled(): Boolean {
+        return isPhoneNumberOk()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/PhoneAccountValidationViewModel.kt

@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.core.AccountCreator
+import org.linphone.core.AccountCreatorListenerStub
+import org.linphone.core.ProxyConfig
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class PhoneAccountValidationViewModelFactory(private val accountCreator: AccountCreator) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return PhoneAccountValidationViewModel(accountCreator) as T
+    }
+}
+
+class PhoneAccountValidationViewModel(val accountCreator: AccountCreator) : ViewModel() {
+    val phoneNumber = MutableLiveData<String>()
+
+    val code = MutableLiveData<String>()
+
+    val isLogin = MutableLiveData<Boolean>()
+
+    val isCreation = MutableLiveData<Boolean>()
+
+    val isLinking = MutableLiveData<Boolean>()
+
+    val waitForServerAnswer = MutableLiveData<Boolean>()
+
+    val leaveAssistantEvent = MutableLiveData<Event<Boolean>>()
+
+    val listener = object : AccountCreatorListenerStub() {
+        override fun onLoginLinphoneAccount(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Assistant] [Phone Account Validation] onLoginLinphoneAccount status is $status")
+            waitForServerAnswer.value = false
+
+            if (status == AccountCreator.Status.RequestOk) {
+                if (createProxyConfig()) {
+                    leaveAssistantEvent.value = Event(true)
+                } else {
+                    // TODO: show error
+                }
+            } else {
+                // TODO: show error
+            }
+        }
+
+        override fun onActivateAlias(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Assistant] [Phone Account Validation] onActivateAlias status is $status")
+            waitForServerAnswer.value = false
+
+            when (status) {
+                AccountCreator.Status.AccountActivated -> {
+                    leaveAssistantEvent.value = Event(true)
+                }
+                else -> {
+                    // TODO: show error
+                }
+            }
+        }
+
+        override fun onActivateAccount(
+            creator: AccountCreator,
+            status: AccountCreator.Status,
+            response: String?
+        ) {
+            Log.i("[Assistant] [Phone Account Validation] onActivateAccount status is $status")
+            waitForServerAnswer.value = false
+
+            if (status == AccountCreator.Status.AccountActivated) {
+                if (createProxyConfig()) {
+                    leaveAssistantEvent.value = Event(true)
+                } else {
+                    // TODO: show error
+                }
+            } else {
+                // TODO: show error
+            }
+        }
+    }
+
+    init {
+        accountCreator.addListener(listener)
+    }
+
+    override fun onCleared() {
+        accountCreator.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun finish() {
+        accountCreator.activationCode = code.value.orEmpty()
+        Log.i("[Assistant] [Phone Account Validation] Phone number is ${accountCreator.phoneNumber} and activation code is ${accountCreator.activationCode}")
+        waitForServerAnswer.value = true
+
+        val status = when {
+            isLogin.value == true -> accountCreator.loginLinphoneAccount()
+            isCreation.value == true -> accountCreator.activateAccount()
+            isLinking.value == true -> accountCreator.activateAlias()
+            else -> AccountCreator.Status.UnexpectedError
+        }
+        Log.i("[Assistant] [Phone Account Validation] Code validation result is $status")
+        if (status != AccountCreator.Status.RequestOk) {
+            waitForServerAnswer.value = false
+            // TODO: show error
+        }
+    }
+
+    private fun createProxyConfig(): Boolean {
+        val proxyConfig: ProxyConfig? = accountCreator.createProxyConfig()
+
+        if (proxyConfig == null) {
+            Log.e("[Assistant] [Phone Account Validation] Account creator couldn't create proxy config")
+            // TODO: show error
+            return false
+        }
+
+        proxyConfig.isPushNotificationAllowed = true
+        Log.i("[Assistant] [Phone Account Validation] Proxy config created")
+        return true
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/QrCodeViewModel.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class QrCodeViewModel : ViewModel() {
+    val qrCodeFoundEvent = MutableLiveData<Event<String>>()
+
+    val showSwitchCamera = MutableLiveData<Boolean>()
+
+    private val listener = object : CoreListenerStub() {
+        override fun onQrcodeFound(core: Core, result: String) {
+            Log.i("[QR Code] Found [$result]")
+            qrCodeFoundEvent.postValue(Event(result))
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+        showSwitchCamera.value = coreContext.core.videoDevicesList.size > 1
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun setBackCamera() {
+        for (camera in coreContext.core.videoDevicesList) {
+            if (camera.contains("Back")) {
+                Log.i("[QR Code] Found back facing camera: $camera")
+                coreContext.core.videoDevice = camera
+                return
+            }
+        }
+
+        val first = coreContext.core.videoDevicesList[0]
+        Log.i("[QR Code] Using first camera found: $first")
+        coreContext.core.videoDevice = first
+    }
+
+    fun switchCamera() {
+        coreContext.switchCamera()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/RemoteProvisioningViewModel.kt

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.ConfiguringState
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class RemoteProvisioningViewModel : ViewModel() {
+    val urlToFetch = MutableLiveData<String>()
+    val fetchInProgress = MutableLiveData<Boolean>()
+    val fetchSuccessfulEvent = MutableLiveData<Event<Boolean>>()
+
+    private val listener = object : CoreListenerStub() {
+        override fun onConfiguringStatus(core: Core, status: ConfiguringState, message: String?) {
+            fetchInProgress.value = false
+            when (status) {
+                ConfiguringState.Successful -> {
+                    fetchSuccessfulEvent.value = Event(true)
+                }
+                ConfiguringState.Failed -> {
+                    fetchSuccessfulEvent.value = Event(false)
+                }
+            }
+        }
+    }
+
+    init {
+        fetchInProgress.value = false
+        coreContext.core.addListener(listener)
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun fetchAndApply(url: String) {
+        coreContext.core.provisioningUri = url
+        Log.w("[Remote Provisioning] Url set to [$url], restarting Core")
+        fetchInProgress.value = true
+        coreContext.core.stop()
+        coreContext.core.start()
+    }
+}

app/src/main/java/org/linphone/activities/assistant/viewmodels/SharedAssistantViewModel.kt

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.assistant.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import java.util.*
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+
+class SharedAssistantViewModel : ViewModel() {
+    val remoteProvisioningUrl = MutableLiveData<String>()
+
+    private var accountCreator: AccountCreator
+    private var useGenericSipAccount: Boolean = false
+
+    init {
+        Log.i("[Assistant] Loading linphone default values")
+        coreContext.core.loadConfigFromXml(corePreferences.linphoneDefaultValuesPath)
+        accountCreator = coreContext.core.createAccountCreator(corePreferences.xmlRpcServerUrl)
+        accountCreator.language = Locale.getDefault().language
+    }
+
+    fun getAccountCreator(genericAccountCreator: Boolean = false): AccountCreator {
+        if (genericAccountCreator != useGenericSipAccount) {
+            accountCreator.reset()
+            accountCreator.language = Locale.getDefault().language
+
+            if (genericAccountCreator) {
+                Log.i("[Assistant] Loading default values")
+                coreContext.core.loadConfigFromXml(corePreferences.defaultValuesPath)
+            } else {
+                Log.i("[Assistant] Loading linphone default values")
+                coreContext.core.loadConfigFromXml(corePreferences.linphoneDefaultValuesPath)
+            }
+            useGenericSipAccount = genericAccountCreator
+        }
+        return accountCreator
+    }
+}

app/src/main/java/org/linphone/activities/call/CallActivity.kt

@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call
+
+import android.content.Context
+import android.content.res.Configuration
+import android.hardware.Sensor
+import android.hardware.SensorEvent
+import android.hardware.SensorEventListener
+import android.hardware.SensorManager
+import android.os.Bundle
+import android.os.PowerManager
+import android.view.Gravity
+import android.view.MotionEvent
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.GenericActivity
+import org.linphone.activities.call.viewmodels.ControlsFadingViewModel
+import org.linphone.activities.call.viewmodels.SharedCallViewModel
+import org.linphone.compatibility.Compatibility
+import org.linphone.core.tools.Log
+import org.linphone.databinding.CallActivityBinding
+
+class CallActivity : GenericActivity() {
+    private lateinit var binding: CallActivityBinding
+    private lateinit var viewModel: ControlsFadingViewModel
+    private lateinit var sharedViewModel: SharedCallViewModel
+
+    private var previewX: Float = 0f
+    private var previewY: Float = 0f
+    private lateinit var videoZoomHelper: VideoZoomHelper
+
+    private lateinit var sensorManager: SensorManager
+    private lateinit var proximitySensor: Sensor
+    private lateinit var proximityWakeLock: PowerManager.WakeLock
+    private val proximityListener: SensorEventListener = object : SensorEventListener {
+        override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) { }
+
+        override fun onSensorChanged(event: SensorEvent) {
+            if (event.timestamp == 0L) return
+            if (isProximitySensorNearby(event)) {
+                if (!proximityWakeLock.isHeld) {
+                    Log.i("[Call Activity] Acquiring proximity wake lock")
+                    proximityWakeLock.acquire()
+                }
+            } else {
+                if (proximityWakeLock.isHeld) {
+                    Log.i("[Call Activity] Releasing proximity wake lock")
+                    proximityWakeLock.release()
+                }
+            }
+        }
+    }
+    private var proximitySensorEnabled = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        sensorManager = getSystemService(Context.SENSOR_SERVICE) as SensorManager
+        proximitySensor = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY)
+        proximityWakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager)
+            .newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, "$packageName;proximity_sensor")
+
+        binding = DataBindingUtil.setContentView(this, R.layout.call_activity)
+        binding.lifecycleOwner = this
+
+        viewModel = ViewModelProvider(this).get(ControlsFadingViewModel::class.java)
+        binding.viewModel = viewModel
+
+        sharedViewModel = ViewModelProvider(this).get(SharedCallViewModel::class.java)
+
+        sharedViewModel.toggleDrawerEvent.observe(this, Observer {
+            it.consume {
+                if (binding.statsMenu.isDrawerOpen(Gravity.LEFT)) {
+                    binding.statsMenu.closeDrawer(binding.sideMenuContent, true)
+                } else {
+                    binding.statsMenu.openDrawer(binding.sideMenuContent, true)
+                }
+            }
+        })
+
+        coreContext.core.nativeVideoWindowId = binding.remoteVideoSurface
+        coreContext.core.nativePreviewWindowId = binding.localPreviewVideoSurface
+
+        binding.setPreviewTouchListener { v, event ->
+            when (event.action) {
+                MotionEvent.ACTION_DOWN -> {
+                    previewX = v.x - event.rawX
+                    previewY = v.y - event.rawY
+                }
+                MotionEvent.ACTION_MOVE -> {
+                    v.animate().x(event.rawX + previewX).y(event.rawY + previewY).setDuration(0).start()
+                }
+                else -> false
+            }
+            true
+        }
+
+        videoZoomHelper = VideoZoomHelper(this, binding.remoteVideoSurface)
+
+        viewModel.videoEnabledEvent.observe(this, Observer {
+            it.consume { videoEnabled ->
+                enableProximitySensor(!videoEnabled)
+            }
+        })
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        if (coreContext.core.callsNb == 0) {
+            Log.w("[Call Activity] Resuming but no call found...")
+            finish()
+        } else {
+            coreContext.removeCallOverlay()
+
+            val currentCall = coreContext.core.currentCall ?: coreContext.core.calls[0]
+            if (currentCall != null) {
+                val videoEnabled = currentCall.currentParams.videoEnabled()
+                enableProximitySensor(!videoEnabled)
+            }
+        }
+    }
+
+    override fun onPause() {
+        enableProximitySensor(false)
+
+        val core = coreContext.core
+        if (core.callsNb > 0) {
+            coreContext.createCallOverlay()
+        }
+
+        super.onPause()
+    }
+
+    override fun onUserLeaveHint() {
+        super.onUserLeaveHint()
+
+        if (coreContext.core.currentCall?.currentParams?.videoEnabled() == true) {
+            Compatibility.enterPipMode(this)
+        }
+    }
+
+    override fun onPictureInPictureModeChanged(
+        isInPictureInPictureMode: Boolean,
+        newConfig: Configuration
+    ) {
+        if (isInPictureInPictureMode) {
+            viewModel.areControlsHidden.value = true
+        }
+    }
+
+    private fun enableProximitySensor(enable: Boolean) {
+        if (enable) {
+            if (!proximitySensorEnabled) {
+                Log.i("[Call Activity] Enabling proximity sensor listener")
+                sensorManager.registerListener(proximityListener, proximitySensor, SensorManager.SENSOR_DELAY_NORMAL)
+                proximitySensorEnabled = true
+            }
+        } else {
+            if (proximitySensorEnabled) {
+                Log.i("[Call Activity] Disabling proximity sensor listener")
+                sensorManager.unregisterListener(proximityListener)
+                if (proximityWakeLock.isHeld) {
+                    proximityWakeLock.release()
+                }
+                proximitySensorEnabled = false
+            }
+        }
+    }
+
+    private fun isProximitySensorNearby(event: SensorEvent): Boolean {
+        var threshold = 4.001f // <= 4 cm is near
+
+        val distanceInCm = event.values[0]
+        val maxDistance = event.sensor.maximumRange
+        Log.d("[Call Activity] Proximity sensor report [$distanceInCm] , for max range [$maxDistance]")
+
+        if (maxDistance <= threshold) {
+            // Case binary 0/1 and short sensors
+            threshold = maxDistance
+        }
+        return distanceInCm < threshold
+    }
+}

app/src/main/java/org/linphone/activities/call/IncomingCallActivity.kt

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call
+
+import android.annotation.TargetApi
+import android.app.KeyguardManager
+import android.content.Context
+import android.os.Bundle
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.GenericActivity
+import org.linphone.activities.call.viewmodels.IncomingCallViewModel
+import org.linphone.activities.call.viewmodels.IncomingCallViewModelFactory
+import org.linphone.core.Call
+import org.linphone.core.tools.Log
+import org.linphone.databinding.CallIncomingActivityBinding
+import org.linphone.mediastream.Version
+import org.linphone.utils.PermissionHelper
+
+class IncomingCallActivity : GenericActivity() {
+    private lateinit var binding: CallIncomingActivityBinding
+    private lateinit var viewModel: IncomingCallViewModel
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = DataBindingUtil.setContentView(this, R.layout.call_incoming_activity)
+        binding.lifecycleOwner = this
+
+        var incomingCall: Call? = null
+        for (call in coreContext.core.calls) {
+            if (call.state == Call.State.IncomingReceived ||
+                call.state == Call.State.IncomingEarlyMedia) {
+                incomingCall = call
+            }
+        }
+
+        if (incomingCall == null) {
+            Log.e("[Incoming Call] Couldn't find call in state Incoming")
+            finish()
+            return
+        }
+
+        viewModel = ViewModelProvider(
+            this,
+            IncomingCallViewModelFactory(incomingCall)
+        )[IncomingCallViewModel::class.java]
+        binding.viewModel = viewModel
+
+        viewModel.callEndedEvent.observe(this, Observer {
+            it.consume {
+                finish()
+            }
+        })
+
+        val keyguardManager = getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
+        viewModel.screenLocked.value = keyguardManager.isKeyguardLocked
+
+        binding.buttons.setViewModel(viewModel)
+
+        if (Version.sdkAboveOrEqual(Version.API23_MARSHMALLOW_60)) {
+            checkPermissions()
+        }
+    }
+
+    @TargetApi(Version.API23_MARSHMALLOW_60)
+    private fun checkPermissions() {
+        val permissionsRequiredList = arrayListOf<String>()
+        if (!PermissionHelper.get().hasRecordAudioPermission()) {
+            Log.i("[Incoming Call] Asking for RECORD_AUDIO permission")
+            permissionsRequiredList.add(android.Manifest.permission.RECORD_AUDIO)
+        }
+        if (viewModel.call.currentParams.videoEnabled() && !PermissionHelper.get().hasCameraPermission()) {
+            Log.i("[Incoming Call] Asking for CAMERA permission")
+            permissionsRequiredList.add(android.Manifest.permission.CAMERA)
+        }
+        if (permissionsRequiredList.isNotEmpty()) {
+            val permissionsRequired = arrayOfNulls<String>(permissionsRequiredList.size)
+            permissionsRequiredList.toArray(permissionsRequired)
+            requestPermissions(permissionsRequired, 0)
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/OutgoingCallActivity.kt

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call
+
+import android.annotation.TargetApi
+import android.os.Bundle
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.GenericActivity
+import org.linphone.activities.call.viewmodels.CallViewModel
+import org.linphone.activities.call.viewmodels.CallViewModelFactory
+import org.linphone.activities.call.viewmodels.ControlsViewModel
+import org.linphone.core.Call
+import org.linphone.core.tools.Log
+import org.linphone.databinding.CallOutgoingActivityBinding
+import org.linphone.mediastream.Version
+import org.linphone.utils.PermissionHelper
+
+class OutgoingCallActivity : GenericActivity() {
+    private lateinit var binding: CallOutgoingActivityBinding
+    private lateinit var viewModel: CallViewModel
+    private lateinit var controlsViewModel: ControlsViewModel
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = DataBindingUtil.setContentView(this, R.layout.call_outgoing_activity)
+        binding.lifecycleOwner = this
+
+        var outgoingCall: Call? = null
+        for (call in coreContext.core.calls) {
+            if (call.state == Call.State.OutgoingInit ||
+                call.state == Call.State.OutgoingProgress ||
+                call.state == Call.State.OutgoingRinging) {
+                outgoingCall = call
+            }
+        }
+
+        if (outgoingCall == null) {
+            Log.e("[Outgoing Call] Couldn't find call in state Outgoing")
+            finish()
+            return
+        }
+
+        viewModel = ViewModelProvider(
+            this,
+            CallViewModelFactory(outgoingCall)
+        )[CallViewModel::class.java]
+        binding.viewModel = viewModel
+
+        controlsViewModel = ViewModelProvider(this).get(ControlsViewModel::class.java)
+        binding.controlsViewModel = controlsViewModel
+
+        binding.setTerminateCallClickListener {
+            viewModel.terminateCall()
+        }
+
+        binding.setToggleMicrophoneClickListener {
+            if (PermissionHelper.get().hasRecordAudioPermission()) {
+                controlsViewModel.toggleMuteMicrophone()
+            } else {
+                checkPermissions()
+            }
+        }
+
+        binding.setToggleSpeakerClickListener {
+            controlsViewModel.toggleSpeaker()
+        }
+
+        viewModel.callEndedEvent.observe(this, Observer {
+            it.consume {
+                finish()
+            }
+        })
+
+        if (Version.sdkAboveOrEqual(Version.API23_MARSHMALLOW_60)) {
+            checkPermissions()
+        }
+    }
+
+    @TargetApi(Version.API23_MARSHMALLOW_60)
+    private fun checkPermissions() {
+        val permissionsRequiredList = arrayListOf<String>()
+        if (!PermissionHelper.get().hasRecordAudioPermission()) {
+            Log.i("[Outgoing Call] Asking for RECORD_AUDIO permission")
+            permissionsRequiredList.add(android.Manifest.permission.RECORD_AUDIO)
+        }
+        if (viewModel.call.currentParams.videoEnabled() && !PermissionHelper.get().hasCameraPermission()) {
+            Log.i("[Outgoing Call] Asking for CAMERA permission")
+            permissionsRequiredList.add(android.Manifest.permission.CAMERA)
+        }
+        if (permissionsRequiredList.isNotEmpty()) {
+            val permissionsRequired = arrayOfNulls<String>(permissionsRequiredList.size)
+            permissionsRequiredList.toArray(permissionsRequired)
+            requestPermissions(permissionsRequired, 0)
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/VideoZoomHelper.kt

@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call
+
+import android.content.Context
+import android.view.GestureDetector
+import android.view.MotionEvent
+import android.view.ScaleGestureDetector
+import android.view.View
+import kotlin.math.max
+import kotlin.math.min
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Call
+
+class VideoZoomHelper(context: Context, private var videoDisplayView: View) : GestureDetector.SimpleOnGestureListener() {
+    private var scaleDetector: ScaleGestureDetector
+
+    private var zoomFactor = 1f
+    private var zoomCenterX = 0f
+    private var zoomCenterY = 0f
+
+    init {
+        val gestureDetector = GestureDetector(context, this)
+
+        scaleDetector = ScaleGestureDetector(context, object :
+            ScaleGestureDetector.SimpleOnScaleGestureListener() {
+            override fun onScale(detector: ScaleGestureDetector): Boolean {
+                zoomFactor *= detector.scaleFactor
+                // Don't let the object get too small or too large.
+                // Zoom to make the video fill the screen vertically
+                val portraitZoomFactor = videoDisplayView.height.toFloat() / (3 * videoDisplayView.width / 4)
+                // Zoom to make the video fill the screen horizontally
+                val landscapeZoomFactor = videoDisplayView.width.toFloat() / (3 * videoDisplayView.height / 4)
+                zoomFactor = max(0.1f, min(zoomFactor, max(portraitZoomFactor, landscapeZoomFactor)))
+
+                val currentCall: Call? = coreContext.core.currentCall
+                if (currentCall != null) {
+                    currentCall.zoom(zoomFactor, zoomCenterX, zoomCenterY)
+                    return true
+                }
+
+                return false
+            }
+        })
+
+        videoDisplayView.setOnTouchListener { v, event ->
+            val currentZoomFactor = zoomFactor
+            scaleDetector.onTouchEvent(event)
+
+            if (currentZoomFactor != zoomFactor) {
+                // We did scale, prevent touch event from going further
+                return@setOnTouchListener true
+            }
+
+            // If true, gesture detected, prevent touch event from going further
+            // Otherwise it seems we didn't use event,
+            // allow it to be dispatched somewhere else
+            gestureDetector.onTouchEvent(event)
+        }
+    }
+
+    override fun onScroll(
+        e1: MotionEvent,
+        e2: MotionEvent,
+        distanceX: Float,
+        distanceY: Float
+    ): Boolean {
+        val currentCall: Call? = coreContext.core.currentCall
+        if (currentCall != null) {
+            if (zoomFactor > 1) {
+                // Video is zoomed, slide is used to change center of zoom
+                if (distanceX > 0 && zoomCenterX < 1) {
+                    zoomCenterX += 0.01f
+                } else if (distanceX < 0 && zoomCenterX > 0) {
+                    zoomCenterX -= 0.01f
+                }
+
+                if (distanceY < 0 && zoomCenterY < 1) {
+                    zoomCenterY += 0.01f
+                } else if (distanceY > 0 && zoomCenterY > 0) {
+                    zoomCenterY -= 0.01f
+                }
+
+                if (zoomCenterX > 1) zoomCenterX = 1f
+                if (zoomCenterX < 0) zoomCenterX = 0f
+                if (zoomCenterY > 1) zoomCenterY = 1f
+                if (zoomCenterY < 0) zoomCenterY = 0f
+
+                currentCall.zoom(zoomFactor, zoomCenterX, zoomCenterY)
+                return true
+            }
+        }
+
+        return false
+    }
+
+    override fun onDoubleTap(e: MotionEvent?): Boolean {
+        val currentCall: Call? = coreContext.core.currentCall
+        if (currentCall != null) {
+            if (zoomFactor == 1f) {
+                // Zoom to make the video fill the screen vertically
+                val portraitZoomFactor = videoDisplayView.height.toFloat() / (3 * videoDisplayView.width / 4)
+                // Zoom to make the video fill the screen horizontally
+                val landscapeZoomFactor = videoDisplayView.width.toFloat() / (3 * videoDisplayView.height / 4)
+                zoomFactor = max(portraitZoomFactor, landscapeZoomFactor)
+            } else {
+                resetZoom()
+            }
+
+            currentCall.zoom(zoomFactor, zoomCenterX, zoomCenterY)
+            return true
+        }
+
+        return false
+    }
+
+    private fun resetZoom() {
+        zoomFactor = 1f
+        zoomCenterY = 0.5f
+        zoomCenterX = zoomCenterY
+    }
+}

app/src/main/java/org/linphone/activities/call/fragments/ControlsFragment.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.fragments
+
+import android.content.Intent
+import android.os.Bundle
+import android.os.SystemClock
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.activities.call.viewmodels.CallsViewModel
+import org.linphone.activities.call.viewmodels.ControlsViewModel
+import org.linphone.activities.main.MainActivity
+import org.linphone.databinding.CallControlsFragmentBinding
+
+class ControlsFragment : Fragment() {
+    private lateinit var binding: CallControlsFragmentBinding
+    private lateinit var callsViewModel: CallsViewModel
+    private lateinit var controlsViewModel: ControlsViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = CallControlsFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        callsViewModel = ViewModelProvider(this).get(CallsViewModel::class.java)
+        binding.viewModel = callsViewModel
+
+        controlsViewModel = ViewModelProvider(this).get(ControlsViewModel::class.java)
+        binding.controlsViewModel = controlsViewModel
+
+        callsViewModel.currentCallViewModel.observe(viewLifecycleOwner, Observer {
+            if (it != null) {
+                binding.activeCallTimer.base =
+                    SystemClock.elapsedRealtime() - (1000 * it.call.duration) // Linphone timestamps are in seconds
+                binding.activeCallTimer.start()
+            }
+        })
+
+        callsViewModel.noMoreCallEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                activity?.finish()
+            }
+        })
+
+        controlsViewModel.chatClickedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                val intent = Intent()
+                intent.setClass(requireContext(), MainActivity::class.java)
+                intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION or Intent.FLAG_ACTIVITY_REORDER_TO_FRONT)
+                intent.putExtra("Chat", true)
+                startActivity(intent)
+            }
+        })
+
+        controlsViewModel.addCallClickedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                val intent = Intent()
+                intent.setClass(requireContext(), MainActivity::class.java)
+                intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION or Intent.FLAG_ACTIVITY_REORDER_TO_FRONT)
+                intent.putExtra("Dialer", true)
+                intent.putExtra("Transfer", false)
+                startActivity(intent)
+            }
+        })
+
+        controlsViewModel.transferCallClickedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                val intent = Intent()
+                intent.setClass(requireContext(), MainActivity::class.java)
+                intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION or Intent.FLAG_ACTIVITY_REORDER_TO_FRONT)
+                intent.putExtra("Dialer", true)
+                intent.putExtra("Transfer", true)
+                startActivity(intent)
+            }
+        })
+    }
+}

app/src/main/java/org/linphone/activities/call/fragments/StatisticsFragment.kt

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.activities.call.viewmodels.StatisticsListViewModel
+import org.linphone.databinding.CallStatisticsFragmentBinding
+
+class StatisticsFragment : Fragment() {
+    private lateinit var binding: CallStatisticsFragmentBinding
+    private lateinit var viewModel: StatisticsListViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = CallStatisticsFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        viewModel = ViewModelProvider(this).get(StatisticsListViewModel::class.java)
+        binding.viewModel = viewModel
+    }
+}

app/src/main/java/org/linphone/activities/call/fragments/StatusFragment.kt

@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.fragments
+
+import android.app.Dialog
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import java.util.*
+import org.linphone.R
+import org.linphone.activities.call.viewmodels.SharedCallViewModel
+import org.linphone.activities.call.viewmodels.StatusViewModel
+import org.linphone.activities.main.viewmodels.DialogViewModel
+import org.linphone.core.Call
+import org.linphone.core.tools.Log
+import org.linphone.databinding.CallStatusFragmentBinding
+import org.linphone.utils.DialogUtils
+import org.linphone.utils.Event
+
+class StatusFragment : Fragment() {
+    private lateinit var binding: CallStatusFragmentBinding
+    private lateinit var viewModel: StatusViewModel
+    private lateinit var sharedViewModel: SharedCallViewModel
+    private var zrtpDialog: Dialog? = null
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = CallStatusFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        viewModel = ViewModelProvider(this).get(StatusViewModel::class.java)
+        binding.viewModel = viewModel
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedCallViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        binding.setStatsClickListener {
+            sharedViewModel.toggleDrawerEvent.value = Event(true)
+        }
+
+        binding.setRefreshClickListener {
+            viewModel.refreshRegister()
+        }
+
+        viewModel.showZrtpDialogEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { call ->
+                if (call.state == Call.State.Connected || call.state == Call.State.StreamsRunning) {
+                    showZrtpDialog(call)
+                }
+            }
+        })
+    }
+
+    override fun onDestroy() {
+        if (zrtpDialog != null) {
+            zrtpDialog?.dismiss()
+        }
+        super.onDestroy()
+    }
+
+    private fun showZrtpDialog(call: Call) {
+        if (zrtpDialog != null && zrtpDialog?.isShowing == true) {
+            Log.e("[Status Fragment] ZRTP dialog already visible")
+            return
+        }
+
+        val token = call.authenticationToken
+        if (token == null || token.length < 4) {
+            Log.e("[Status Fragment] ZRTP token is invalid: $token")
+            return
+        }
+
+        val toRead: String
+        val toListen: String
+        when (call.dir) {
+            Call.Dir.Incoming -> {
+                toRead = token.substring(0, 2)
+                toListen = token.substring(2)
+            }
+            else -> {
+                toRead = token.substring(2)
+                toListen = token.substring(0, 2)
+            }
+        }
+
+        val viewModel = DialogViewModel(getString(R.string.zrtp_dialog_message), getString(R.string.zrtp_dialog_title))
+        viewModel.showZrtp = true
+        viewModel.zrtpReadSas = toRead.toUpperCase(Locale.getDefault())
+        viewModel.zrtpListenSas = toListen.toUpperCase(Locale.getDefault())
+        viewModel.showIcon = true
+        viewModel.iconResource = R.drawable.security_2_indicator
+
+        val dialog: Dialog = DialogUtils.getDialog(requireContext(), viewModel)
+
+        viewModel.showDeleteButton({
+            call.authenticationTokenVerified = false
+            this@StatusFragment.viewModel.updateEncryptionInfo(call)
+            dialog.dismiss()
+            zrtpDialog = null
+        }, getString(R.string.zrtp_dialog_deny_button_label))
+
+        viewModel.showOkButton({
+            call.authenticationTokenVerified = true
+            this@StatusFragment.viewModel.updateEncryptionInfo(call)
+            dialog.dismiss()
+            zrtpDialog = null
+        }, getString(R.string.zrtp_dialog_ok_button_label))
+
+        zrtpDialog = dialog
+        dialog.show()
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/CallStatisticsViewModel.kt

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.contact.GenericContactViewModel
+import org.linphone.core.*
+
+class CallStatisticsViewModel(val call: Call) : GenericContactViewModel(call.remoteAddress) {
+    val audioStats = MutableLiveData<ArrayList<StatItemViewModel>>()
+
+    val videoStats = MutableLiveData<ArrayList<StatItemViewModel>>()
+
+    val isVideoEnabled = MutableLiveData<Boolean>()
+
+    val isExpanded = MutableLiveData<Boolean>()
+
+    private val listener = object : CoreListenerStub() {
+        override fun onCallStatsUpdated(core: Core, call: Call, stats: CallStats) {
+            if (call == this@CallStatisticsViewModel.call) {
+                isVideoEnabled.value = call.currentParams.videoEnabled()
+                updateCallStats(stats)
+            }
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+
+        audioStats.value = arrayListOf()
+        videoStats.value = arrayListOf()
+
+        initCallStats()
+
+        val videoEnabled = call.currentParams.videoEnabled()
+        isVideoEnabled.value = videoEnabled
+
+        isExpanded.value = coreContext.core.currentCall == call
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun toggleExpanded() {
+        isExpanded.value = isExpanded.value != true
+    }
+
+    private fun initCallStats() {
+        val audioList = arrayListOf<StatItemViewModel>()
+        audioList.add(StatItemViewModel(StatType.CAPTURE))
+        audioList.add(StatItemViewModel(StatType.PLAYBACK))
+        audioList.add(StatItemViewModel(StatType.PAYLOAD))
+        audioList.add(StatItemViewModel(StatType.ENCODER))
+        audioList.add(StatItemViewModel(StatType.DECODER))
+        audioList.add(StatItemViewModel(StatType.DOWNLOAD_BW))
+        audioList.add(StatItemViewModel(StatType.UPLOAD_BW))
+        audioList.add(StatItemViewModel(StatType.ICE))
+        audioList.add(StatItemViewModel(StatType.IP_FAM))
+        audioList.add(StatItemViewModel(StatType.SENDER_LOSS))
+        audioList.add(StatItemViewModel(StatType.RECEIVER_LOSS))
+        audioList.add(StatItemViewModel(StatType.JITTER))
+        audioStats.value = audioList
+
+        val videoList = arrayListOf<StatItemViewModel>()
+        videoList.add(StatItemViewModel(StatType.CAPTURE))
+        videoList.add(StatItemViewModel(StatType.PLAYBACK))
+        videoList.add(StatItemViewModel(StatType.PAYLOAD))
+        videoList.add(StatItemViewModel(StatType.ENCODER))
+        videoList.add(StatItemViewModel(StatType.DECODER))
+        videoList.add(StatItemViewModel(StatType.DOWNLOAD_BW))
+        videoList.add(StatItemViewModel(StatType.UPLOAD_BW))
+        videoList.add(StatItemViewModel(StatType.ESTIMATED_AVAILABLE_DOWNLOAD_BW))
+        videoList.add(StatItemViewModel(StatType.ICE))
+        videoList.add(StatItemViewModel(StatType.IP_FAM))
+        videoList.add(StatItemViewModel(StatType.SENDER_LOSS))
+        videoList.add(StatItemViewModel(StatType.RECEIVER_LOSS))
+        videoList.add(StatItemViewModel(StatType.SENT_RESOLUTION))
+        videoList.add(StatItemViewModel(StatType.RECEIVED_RESOLUTION))
+        videoList.add(StatItemViewModel(StatType.SENT_FPS))
+        videoList.add(StatItemViewModel(StatType.RECEIVED_FPS))
+        videoStats.value = videoList
+    }
+
+    private fun updateCallStats(stats: CallStats) {
+        if (stats.type == StreamType.Audio) {
+            for (stat in audioStats.value.orEmpty()) {
+                stat.update(call, stats)
+            }
+        } else if (stats.type == StreamType.Video) {
+            for (stat in videoStats.value.orEmpty()) {
+                stat.update(call, stats)
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/CallViewModel.kt

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.contact.GenericContactViewModel
+import org.linphone.core.Call
+import org.linphone.core.CallListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class CallViewModelFactory(private val call: Call) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return CallViewModel(call) as T
+    }
+}
+
+open class CallViewModel(val call: Call) : GenericContactViewModel(call.remoteAddress) {
+    val address: String by lazy {
+        call.remoteAddress.clean() // To remove gruu if any
+        call.remoteAddress.asStringUriOnly()
+    }
+
+    val isPaused = MutableLiveData<Boolean>()
+
+    val callEndedEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    private val listener = object : CallListenerStub() {
+        override fun onStateChanged(call: Call, state: Call.State, message: String) {
+            if (call != this@CallViewModel.call) return
+
+            isPaused.value = state == Call.State.Paused
+
+            if (state == Call.State.End || state == Call.State.Released || state == Call.State.Error) {
+                callEndedEvent.value = Event(true)
+
+                if (state == Call.State.Error) {
+                    Log.e("[Call View Model] Error state reason is ${call.reason}")
+                }
+            }
+        }
+    }
+
+    init {
+        call.addListener(listener)
+
+        isPaused.value = call.state == Call.State.Paused
+    }
+
+    override fun onCleared() {
+        call.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun terminateCall() {
+        coreContext.terminateCall(call)
+    }
+
+    fun pause() {
+        call.pause()
+    }
+
+    fun resume() {
+        call.resume()
+    }
+
+    fun removeFromConference() {
+        if (call.conference != null) {
+            call.conference.removeParticipant(call.remoteAddress)
+            if (call.core.conferenceSize <= 1) call.core.leaveConference()
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/CallsViewModel.kt

@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Call
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.utils.Event
+
+class CallsViewModel : ViewModel() {
+    val currentCallViewModel = MutableLiveData<CallViewModel>()
+
+    val callPausedByRemote = MutableLiveData<Boolean>()
+
+    val pausedCalls = MutableLiveData<ArrayList<CallViewModel>>()
+
+    val conferenceCalls = MutableLiveData<ArrayList<CallViewModel>>()
+
+    val isConferencePaused = MutableLiveData<Boolean>()
+
+    val noMoreCallEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    private val listener = object : CoreListenerStub() {
+        override fun onCallStateChanged(
+            core: Core,
+            call: Call,
+            state: Call.State,
+            message: String
+        ) {
+            callPausedByRemote.value = state == Call.State.PausedByRemote
+            isConferencePaused.value = !coreContext.core.isInConference
+
+            if (core.currentCall == null) {
+                currentCallViewModel.value = null
+            } else if (currentCallViewModel.value == null) {
+                currentCallViewModel.value = CallViewModel(core.currentCall)
+            }
+
+            if (state == Call.State.End || state == Call.State.Released || state == Call.State.Error) {
+                if (core.callsNb == 0) {
+                    noMoreCallEvent.value = Event(true)
+                    conferenceCalls.value = arrayListOf()
+                } else {
+                    removeCallFromPausedListIfPresent(call)
+                    removeCallFromConferenceIfPresent(call)
+                }
+            } else {
+                if (state == Call.State.Pausing) {
+                    addCallToPausedList(call)
+                } else if (state == Call.State.Resuming) {
+                    removeCallFromPausedListIfPresent(call)
+                } else {
+                    if (call.conference != null) {
+                        addCallToConferenceListIfNotAlreadyInIt(call)
+                    } else {
+                        removeCallFromConferenceIfPresent(call)
+                    }
+                }
+            }
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+
+        val currentCall = coreContext.core.currentCall
+        if (currentCall != null) {
+            currentCallViewModel.value = CallViewModel(currentCall)
+        }
+        callPausedByRemote.value = currentCall?.state == Call.State.PausedByRemote
+        isConferencePaused.value = !coreContext.core.isInConference
+
+        val conferenceList = arrayListOf<CallViewModel>()
+        for (call in coreContext.core.calls) {
+            if (call.state == Call.State.Paused || call.state == Call.State.Pausing) {
+                addCallToPausedList(call)
+            } else {
+                if (call.conference != null && call.core.isInConference) {
+                    conferenceList.add(CallViewModel(call))
+                }
+            }
+        }
+        conferenceCalls.value = conferenceList
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun pauseConference() {
+        if (coreContext.core.isInConference) {
+            coreContext.core.leaveConference()
+            isConferencePaused.value = true
+        }
+    }
+
+    fun resumeConference() {
+        if (!coreContext.core.isInConference) {
+            coreContext.core.enterConference()
+            isConferencePaused.value = false
+        }
+    }
+
+    private fun addCallToPausedList(call: Call) {
+        val list = arrayListOf<CallViewModel>()
+        list.addAll(pausedCalls.value.orEmpty())
+
+        val viewModel = CallViewModel(call)
+        list.add(viewModel)
+        pausedCalls.value = list
+    }
+
+    private fun removeCallFromPausedListIfPresent(call: Call) {
+        val list = arrayListOf<CallViewModel>()
+        list.addAll(pausedCalls.value.orEmpty())
+
+        for (pausedCallViewModel in list) {
+            if (pausedCallViewModel.call == call) {
+                list.remove(pausedCallViewModel)
+                break
+            }
+        }
+
+        pausedCalls.value = list
+    }
+
+    private fun addCallToConferenceListIfNotAlreadyInIt(call: Call) {
+        val list = arrayListOf<CallViewModel>()
+        list.addAll(conferenceCalls.value.orEmpty())
+
+        for (viewModel in list) {
+            if (viewModel.call == call) return
+        }
+
+        val viewModel = CallViewModel(call)
+        list.add(viewModel)
+        conferenceCalls.value = list
+    }
+
+    private fun removeCallFromConferenceIfPresent(call: Call) {
+        val list = arrayListOf<CallViewModel>()
+        list.addAll(conferenceCalls.value.orEmpty())
+
+        for (viewModel in list) {
+            if (viewModel.call == call) {
+                list.remove(viewModel)
+                break
+            }
+        }
+
+        conferenceCalls.value = list
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/ControlsFadingViewModel.kt

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import java.util.*
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Call
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+
+class ControlsFadingViewModel : ViewModel() {
+    val areControlsHidden = MutableLiveData<Boolean>()
+
+    val videoEnabledEvent = MutableLiveData<Event<Boolean>>()
+
+    private var timer: Timer? = null
+
+    private val listener = object : CoreListenerStub() {
+        override fun onCallStateChanged(
+            core: Core,
+            call: Call,
+            state: Call.State,
+            message: String?
+        ) {
+            if (state == Call.State.StreamsRunning || state == Call.State.Updating || state == Call.State.UpdatedByRemote) {
+                Log.i("[Controls Fading] Call is in state $state, video is enabled? ${call.currentParams.videoEnabled()}")
+                if (call.currentParams.videoEnabled()) {
+                    videoEnabledEvent.value = Event(true)
+                    startTimer()
+                } else {
+                    videoEnabledEvent.value = Event(false)
+                    stopTimer()
+                }
+            }
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+
+        areControlsHidden.value = false
+
+        val currentCall = coreContext.core.currentCall
+        if (currentCall != null && currentCall.currentParams.videoEnabled()) {
+            videoEnabledEvent.value = Event(true)
+            startTimer()
+        }
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+        stopTimer()
+
+        super.onCleared()
+    }
+
+    fun showMomentarily() {
+        stopTimer()
+        startTimer()
+    }
+
+    private fun stopTimer() {
+        timer?.cancel()
+
+        areControlsHidden.value = false
+    }
+
+    private fun startTimer() {
+        timer?.cancel()
+
+        timer = Timer("Hide UI controls scheduler")
+        timer?.schedule(object : TimerTask() {
+            override fun run() {
+                areControlsHidden.postValue(coreContext.core.currentCall?.currentParams?.videoEnabled() ?: false)
+            }
+        }, 3000)
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/ControlsViewModel.kt

@@ -0,0 +1,317 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import kotlin.math.max
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.activities.main.dialer.NumpadDigitListener
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+import org.linphone.utils.PermissionHelper
+
+class ControlsViewModel : ViewModel() {
+    val isMicrophoneMuted = MutableLiveData<Boolean>()
+
+    val isMuteMicrophoneEnabled = MutableLiveData<Boolean>()
+
+    val isSpeakerSelected = MutableLiveData<Boolean>()
+
+    val isBluetoothHeadsetSelected = MutableLiveData<Boolean>()
+
+    val isVideoAvailable = MutableLiveData<Boolean>()
+
+    val isVideoEnabled = MutableLiveData<Boolean>()
+
+    val isVideoUpdateInProgress = MutableLiveData<Boolean>()
+
+    val isPauseEnabled = MutableLiveData<Boolean>()
+
+    val isRecording = MutableLiveData<Boolean>()
+
+    val isConferencingAvailable = MutableLiveData<Boolean>()
+
+    val unreadMessagesCount = MutableLiveData<Int>()
+
+    val numpadVisibility = MutableLiveData<Boolean>()
+
+    val optionsVisibility = MutableLiveData<Boolean>()
+
+    val audioRoutesVisibility = MutableLiveData<Boolean>()
+
+    val audioRoutesEnabled = MutableLiveData<Boolean>()
+
+    val chatClickedEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    val addCallClickedEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    val transferCallClickedEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    val onKeyClick: NumpadDigitListener = object : NumpadDigitListener {
+        override fun handleClick(key: Char) {
+            coreContext.core.playDtmf(key, 1)
+        }
+
+        override fun handleLongClick(key: Char): Boolean {
+            return true
+        }
+    }
+
+    private val listener: CoreListenerStub = object : CoreListenerStub() {
+        override fun onMessageReceived(core: Core, chatRoom: ChatRoom, message: ChatMessage) {
+            updateUnreadChatCount()
+        }
+
+        override fun onChatRoomRead(core: Core, chatRoom: ChatRoom) {
+            updateUnreadChatCount()
+        }
+
+        override fun onCallStateChanged(
+            core: Core,
+            call: Call,
+            state: Call.State,
+            message: String?
+        ) {
+            if (state == Call.State.StreamsRunning) isVideoUpdateInProgress.value = false
+
+            updateUI()
+        }
+
+        override fun onAudioDeviceChanged(core: Core, audioDevice: AudioDevice) {
+            updateAudioRelated()
+        }
+
+        override fun onAudioDevicesListUpdated(core: Core) {
+            updateAudioRelated()
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+        val currentCall = coreContext.core.currentCall
+
+        updateMuteMicState()
+        updateAudioRelated()
+        updateUnreadChatCount()
+
+        numpadVisibility.value = false
+        optionsVisibility.value = false
+        audioRoutesVisibility.value = false
+
+        isRecording.value = currentCall?.isRecording
+        isVideoUpdateInProgress.value = false
+
+        updateUI()
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+        super.onCleared()
+    }
+
+    fun updateUnreadChatCount() {
+        unreadMessagesCount.value = coreContext.core.unreadChatMessageCountFromActiveLocals
+    }
+
+    fun toggleMuteMicrophone() {
+        val micEnabled = coreContext.core.micEnabled()
+        coreContext.core.enableMic(!micEnabled)
+        updateMuteMicState()
+    }
+
+    fun toggleSpeaker() {
+        val audioDevice = coreContext.core.outputAudioDevice
+        if (audioDevice?.type == AudioDevice.Type.Speaker) {
+            forceEarpieceAudioRoute()
+        } else {
+            forceSpeakerAudioRoute()
+        }
+    }
+
+    fun switchCamera() {
+        coreContext.switchCamera()
+    }
+
+    fun terminateCall() {
+        val core = coreContext.core
+        when {
+            core.currentCall != null -> core.currentCall.terminate()
+            core.isInConference -> core.terminateConference()
+            else -> core.terminateAllCalls()
+        }
+    }
+
+    fun toggleVideo() {
+        val core = coreContext.core
+        val currentCall = core.currentCall
+
+        if (currentCall != null) {
+            val state = currentCall.state
+            if (state == Call.State.End || state == Call.State.Released || state == Call.State.Error)
+                return
+
+            isVideoUpdateInProgress.value = true
+            val params = core.createCallParams(currentCall)
+            params.enableVideo(!currentCall.currentParams.videoEnabled())
+            currentCall.update(params)
+        }
+    }
+
+    fun toggleOptionsMenu() {
+        optionsVisibility.value = optionsVisibility.value != true
+    }
+
+    fun toggleNumpadVisibility() {
+        numpadVisibility.value = numpadVisibility.value != true
+    }
+
+    fun toggleRoutesMenu() {
+        audioRoutesVisibility.value = audioRoutesVisibility.value != true
+    }
+
+    fun toggleRecording(closeMenu: Boolean) {
+        val currentCall = coreContext.core.currentCall
+        if (currentCall != null) {
+            if (currentCall.isRecording) {
+                currentCall.stopRecording()
+            } else {
+                currentCall.startRecording()
+            }
+        }
+        isRecording.value = currentCall?.isRecording
+        if (closeMenu) toggleOptionsMenu()
+    }
+
+    fun onChatClicked() {
+        chatClickedEvent.value = Event(true)
+    }
+
+    fun onAddCallClicked() {
+        addCallClickedEvent.value = Event(true)
+        toggleOptionsMenu()
+    }
+
+    fun onTransferCallClicked() {
+        transferCallClickedEvent.value = Event(true)
+        toggleOptionsMenu()
+    }
+
+    fun startConference() {
+        coreContext.core.addAllToConference()
+        toggleOptionsMenu()
+    }
+
+    fun forceEarpieceAudioRoute() {
+        for (audioDevice in coreContext.core.audioDevices) {
+            if (audioDevice.type == AudioDevice.Type.Earpiece) {
+                Log.i("[Call] Found earpiece audio device [${audioDevice.deviceName}], routing audio to it")
+                coreContext.core.outputAudioDevice = audioDevice
+                return
+            }
+        }
+        Log.e("[Call] Couldn't find earpiece audio device")
+    }
+
+    fun forceSpeakerAudioRoute() {
+        for (audioDevice in coreContext.core.audioDevices) {
+            if (audioDevice.type == AudioDevice.Type.Speaker) {
+                Log.i("[Call] Found speaker audio device [${audioDevice.deviceName}], routing audio to it")
+                coreContext.core.outputAudioDevice = audioDevice
+                return
+            }
+        }
+        Log.e("[Call] Couldn't find speaker audio device")
+    }
+
+    fun forceBluetoothAudioRoute() {
+        for (audioDevice in coreContext.core.audioDevices) {
+            if (audioDevice.type == AudioDevice.Type.Bluetooth) {
+                Log.i("[Call] Found bluetooth audio device [${audioDevice.deviceName}], routing audio to it")
+                coreContext.core.outputAudioDevice = audioDevice
+                return
+            }
+        }
+        Log.e("[Call] Couldn't find bluetooth audio device")
+    }
+
+    private fun updateAudioRelated() {
+        updateSpeakerState()
+        updateBluetoothHeadsetState()
+        updateAudioRoutesState()
+    }
+
+    private fun updateUI() {
+        val currentCall = coreContext.core.currentCall
+        updateVideoAvailable()
+        updateVideoEnabled()
+        isPauseEnabled.value = currentCall != null && !currentCall.mediaInProgress()
+        isMuteMicrophoneEnabled.value = currentCall != null || coreContext.core.isInConference
+        updateConferenceState()
+    }
+
+    private fun updateMuteMicState() {
+        isMicrophoneMuted.value = !PermissionHelper.get().hasRecordAudioPermission() || !coreContext.core.micEnabled()
+    }
+
+    private fun updateSpeakerState() {
+        val audioDevice = coreContext.core.outputAudioDevice
+        isSpeakerSelected.value = audioDevice?.type == AudioDevice.Type.Speaker
+    }
+
+    private fun updateAudioRoutesState() {
+        var bluetoothDeviceAvailable = false
+        for (audioDevice in coreContext.core.audioDevices) {
+            if (audioDevice.type == AudioDevice.Type.Bluetooth) {
+                bluetoothDeviceAvailable = true
+                break
+            }
+        }
+        audioRoutesEnabled.value = bluetoothDeviceAvailable
+    }
+
+    private fun updateBluetoothHeadsetState() {
+        val audioDevice = coreContext.core.outputAudioDevice
+        isBluetoothHeadsetSelected.value = audioDevice?.type == AudioDevice.Type.Bluetooth
+    }
+
+    private fun updateVideoAvailable() {
+        val core = coreContext.core
+        isVideoAvailable.value = (core.videoCaptureEnabled() || core.videoPreviewEnabled()) &&
+                core.currentCall != null && !core.currentCall.mediaInProgress()
+    }
+
+    private fun updateVideoEnabled() {
+        val core = coreContext.core
+        isVideoEnabled.value = core.currentCall?.currentParams?.videoEnabled()
+    }
+
+    private fun updateConferenceState() {
+        val core = coreContext.core
+        isConferencingAvailable.value = core.callsNb > max(1, core.conferenceSize) && !core.soundResourcesLocked()
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/IncomingCallViewModel.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.*
+
+class IncomingCallViewModelFactory(private val call: Call) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return IncomingCallViewModel(call) as T
+    }
+}
+
+class IncomingCallViewModel(call: Call) : CallViewModel(call) {
+    val screenLocked = MutableLiveData<Boolean>()
+
+    val earlyMediaVideoEnabled = MutableLiveData<Boolean>()
+
+    val inviteWithVideo = MutableLiveData<Boolean>()
+
+    init {
+        screenLocked.value = false
+        inviteWithVideo.value = call.currentParams.videoEnabled()
+        earlyMediaVideoEnabled.value = call.state == Call.State.IncomingEarlyMedia && call.currentParams?.videoEnabled() ?: false
+    }
+
+    fun answer(doAction: Boolean) {
+        if (doAction) coreContext.answerCall(call)
+    }
+
+    fun decline(doAction: Boolean) {
+        if (doAction) coreContext.declineCall(call)
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/SharedCallViewModel.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
  *
  * This file is part of linphone-android
  * (see https://www.linphone.org).
@@ -17,8 +17,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-package org.linphone.compatibility;
+package org.linphone.activities.call.viewmodels
 
-public interface CompatibilityScaleGestureListener {
+import androidx.lifecycle.MutableLiveData
-    boolean onScale(CompatibilityScaleGestureDetector detector);
+import androidx.lifecycle.ViewModel
+import org.linphone.utils.Event
+
+class SharedCallViewModel : ViewModel() {
+    val toggleDrawerEvent = MutableLiveData<Event<Boolean>>()
 }

app/src/main/java/org/linphone/activities/call/viewmodels/SingleStatisticViewModel.kt

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import java.text.DecimalFormat
+import org.linphone.R
+import org.linphone.core.AddressFamily
+import org.linphone.core.Call
+import org.linphone.core.CallStats
+import org.linphone.core.StreamType
+
+enum class StatType(val nameResource: Int) {
+    CAPTURE(R.string.call_stats_capture_filter),
+    PLAYBACK(R.string.call_stats_player_filter),
+    PAYLOAD(R.string.call_stats_codec),
+    ENCODER(R.string.call_stats_encoder_name),
+    DECODER(R.string.call_stats_decoder_name),
+    DOWNLOAD_BW(R.string.call_stats_download),
+    UPLOAD_BW(R.string.call_stats_upload),
+    ICE(R.string.call_stats_ice),
+    IP_FAM(R.string.call_stats_ip),
+    SENDER_LOSS(R.string.call_stats_sender_loss_rate),
+    RECEIVER_LOSS(R.string.call_stats_receiver_loss_rate),
+    JITTER(R.string.call_stats_jitter_buffer),
+    SENT_RESOLUTION(R.string.call_stats_video_resolution_sent),
+    RECEIVED_RESOLUTION(R.string.call_stats_video_resolution_received),
+    SENT_FPS(R.string.call_stats_video_fps_sent),
+    RECEIVED_FPS(R.string.call_stats_video_fps_received),
+    ESTIMATED_AVAILABLE_DOWNLOAD_BW(R.string.call_stats_estimated_download)
+}
+
+class StatItemViewModel(val type: StatType) : ViewModel() {
+    val value = MutableLiveData<String>()
+
+    fun update(call: Call, stats: CallStats) {
+        val payloadType = if (stats.type == StreamType.Audio) call.currentParams.usedAudioPayloadType else call.currentParams.usedVideoPayloadType
+        value.value = when (type) {
+            StatType.CAPTURE -> if (stats.type == StreamType.Audio) call.core.captureDevice else call.core.videoDevice
+            StatType.PLAYBACK -> if (stats.type == StreamType.Audio) call.core.playbackDevice else call.core.videoDisplayFilter
+            StatType.PAYLOAD -> "${payloadType.mimeType}/${payloadType.clockRate / 1000} kHz"
+            StatType.ENCODER -> call.core.mediastreamerFactory.getDecoderText(payloadType.mimeType)
+            StatType.DECODER -> call.core.mediastreamerFactory.getEncoderText(payloadType.mimeType)
+            StatType.DOWNLOAD_BW -> "${stats.downloadBandwidth} kbits/s"
+            StatType.UPLOAD_BW -> "${stats.uploadBandwidth} kbits/s"
+            StatType.ICE -> stats.iceState.toString()
+            StatType.IP_FAM -> if (stats.ipFamilyOfRemote == AddressFamily.Inet6) "IPv6" else "IPv4"
+            StatType.SENDER_LOSS -> DecimalFormat("##.##%").format(stats.senderLossRate)
+            StatType.RECEIVER_LOSS -> DecimalFormat("##.##%").format(stats.receiverLossRate)
+            StatType.JITTER -> DecimalFormat("##.## ms").format(stats.jitterBufferSizeMs)
+            StatType.SENT_RESOLUTION -> call.currentParams.sentVideoDefinition?.name
+            StatType.RECEIVED_RESOLUTION -> call.currentParams.receivedVideoDefinition?.name
+            StatType.SENT_FPS -> "${call.currentParams.sentFramerate}"
+            StatType.RECEIVED_FPS -> "${call.currentParams.receivedFramerate}"
+            StatType.ESTIMATED_AVAILABLE_DOWNLOAD_BW -> "${stats.estimatedDownloadBandwidth} kbit/s"
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/StatisticsListViewModel.kt

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.Call
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+
+class StatisticsListViewModel : ViewModel() {
+    val callStatsList = MutableLiveData<ArrayList<CallStatisticsViewModel>>()
+
+    private val listener = object : CoreListenerStub() {
+        override fun onCallStateChanged(
+            core: Core,
+            call: Call,
+            state: Call.State,
+            message: String?
+        ) {
+            if (state == Call.State.End || state == Call.State.Error) {
+                for (stat in callStatsList.value.orEmpty()) {
+                    if (stat.call == call) {
+                        callStatsList.value?.remove(stat)
+                    }
+                }
+            }
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+
+        val list = arrayListOf<CallStatisticsViewModel>()
+        for (call in coreContext.core.calls) {
+            if (call.state != Call.State.End && call.state != Call.State.Released && call.state != Call.State.Error) {
+                list.add(CallStatisticsViewModel(call))
+            }
+        }
+        callStatsList.value = list
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+
+        super.onCleared()
+    }
+}

app/src/main/java/org/linphone/activities/call/viewmodels/StatusViewModel.kt

@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.viewmodels.StatusViewModel
+import org.linphone.core.*
+import org.linphone.utils.Event
+
+class StatusViewModel : StatusViewModel() {
+    val callQualityIcon = MutableLiveData<Int>()
+    val callQualityContentDescription = MutableLiveData<Int>()
+
+    val encryptionIcon = MutableLiveData<Int>()
+    val encryptionContentDescription = MutableLiveData<Int>()
+    val encryptionIconVisible = MutableLiveData<Boolean>()
+
+    val showZrtpDialogEvent: MutableLiveData<Event<Call>> by lazy {
+        MutableLiveData<Event<Call>>()
+    }
+
+    private val listener = object : CoreListenerStub() {
+        override fun onCallStatsUpdated(core: Core, call: Call, stats: CallStats) {
+            updateCallQualityIcon()
+        }
+
+        override fun onCallEncryptionChanged(
+            core: Core,
+            call: Call,
+            on: Boolean,
+            authenticationToken: String
+        ) {
+            if (call.params.mediaEncryption == MediaEncryption.ZRTP && !call.authenticationTokenVerified) {
+                showZrtpDialogEvent.value = Event(call)
+            } else {
+                updateEncryptionInfo(call)
+            }
+        }
+
+        override fun onCallStateChanged(
+            core: Core,
+            call: Call,
+            state: Call.State,
+            message: String?
+        ) {
+            if (call == core.currentCall) {
+                updateEncryptionInfo(call)
+            }
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+
+        updateCallQualityIcon()
+
+        val currentCall = coreContext.core.currentCall
+        if (currentCall != null) {
+            updateEncryptionInfo(currentCall)
+
+            if (currentCall.params.mediaEncryption == MediaEncryption.ZRTP && !currentCall.authenticationTokenVerified) {
+                showZrtpDialogEvent.value = Event(currentCall)
+            }
+        }
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun showZrtpDialog() {
+        val currentCall = coreContext.core.currentCall
+        if (currentCall?.params?.mediaEncryption == MediaEncryption.ZRTP) {
+            showZrtpDialogEvent.value = Event(currentCall)
+        }
+    }
+
+    fun updateEncryptionInfo(call: Call) {
+        if (call.dir == Call.Dir.Incoming && call.state == Call.State.IncomingReceived && call.core.isMediaEncryptionMandatory) {
+            // If the incoming call view is displayed while encryption is mandatory,
+            // we can safely show the security_ok icon
+            encryptionIcon.value = R.drawable.security_ok
+            encryptionIconVisible.value = true
+            encryptionContentDescription.value = R.string.content_description_call_secured
+            return
+        }
+
+        when (call.params.mediaEncryption ?: MediaEncryption.None) {
+            MediaEncryption.SRTP, MediaEncryption.DTLS -> {
+                encryptionIcon.value = R.drawable.security_ok
+                encryptionIconVisible.value = true
+                encryptionContentDescription.value = R.string.content_description_call_secured
+            }
+            MediaEncryption.ZRTP -> {
+                encryptionIcon.value = when (call.authenticationTokenVerified) {
+                    true -> R.drawable.security_ok
+                    else -> R.drawable.security_pending
+                }
+                encryptionContentDescription.value = when (call.authenticationTokenVerified) {
+                    true -> R.string.content_description_call_secured
+                    else -> R.string.content_description_call_security_pending
+                }
+                encryptionIconVisible.value = true
+            }
+            MediaEncryption.None -> {
+                encryptionIcon.value = R.drawable.security_ko
+                // Do not show unsecure icon if user doesn't want to do call encryption
+                encryptionIconVisible.value = call.core.mediaEncryption != MediaEncryption.None
+                encryptionContentDescription.value = R.string.content_description_call_not_secured
+            }
+        }
+    }
+
+    private fun updateCallQualityIcon() {
+        val call = coreContext.core.currentCall
+        val quality = call?.currentQuality ?: 0f
+        callQualityIcon.value = when {
+            quality >= 4 -> R.drawable.call_quality_indicator_4
+            quality >= 3 -> R.drawable.call_quality_indicator_3
+            quality >= 2 -> R.drawable.call_quality_indicator_2
+            quality >= 1 -> R.drawable.call_quality_indicator_1
+            else -> R.drawable.call_quality_indicator_0
+        }
+        callQualityContentDescription.value = when {
+            quality >= 4 -> R.string.content_description_call_quality_4
+            quality >= 3 -> R.string.content_description_call_quality_3
+            quality >= 2 -> R.string.content_description_call_quality_2
+            quality >= 1 -> R.string.content_description_call_quality_1
+            else -> R.string.content_description_call_quality_0
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/views/AnswerDeclineIncomingCallButtons.kt

@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.views
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.view.MotionEvent
+import android.view.View
+import android.view.View.OnTouchListener
+import android.widget.LinearLayout
+import androidx.databinding.DataBindingUtil
+import org.linphone.R
+import org.linphone.activities.call.viewmodels.IncomingCallViewModel
+import org.linphone.core.tools.Log
+import org.linphone.databinding.CallIncomingAnswerDeclineButtonsBinding
+
+class AnswerDeclineIncomingCallButtons : LinearLayout {
+    private lateinit var binding: CallIncomingAnswerDeclineButtonsBinding
+    private var mBegin = false
+    private var mDeclineX = 0f
+    private var mAnswerX = 0f
+    private var mOldSize = 0f
+
+    private val mAnswerTouchListener = OnTouchListener { view, motionEvent ->
+        val curX: Float
+
+        when (motionEvent.action) {
+            MotionEvent.ACTION_DOWN -> {
+                binding.declineButton.visibility = View.GONE
+                mAnswerX = motionEvent.x - view.width
+                mBegin = true
+                mOldSize = 0f
+            }
+            MotionEvent.ACTION_MOVE -> {
+                curX = motionEvent.x - view.width
+                view.scrollBy((mAnswerX - curX).toInt(), view.scrollY)
+                mOldSize -= mAnswerX - curX
+                mAnswerX = curX
+                if (mOldSize < -25) mBegin = false
+                if (curX < (width / 4) - view.width && !mBegin) {
+                    binding.viewModel?.answer(true)
+                }
+            }
+            MotionEvent.ACTION_UP -> {
+                binding.declineButton.visibility = View.VISIBLE
+                view.scrollTo(0, view.scrollY)
+            }
+        }
+        true
+    }
+    private val mDeclineTouchListener = OnTouchListener { view, motionEvent ->
+        val curX: Float
+
+        when (motionEvent.action) {
+            MotionEvent.ACTION_DOWN -> {
+                binding.answerButton.visibility = View.GONE
+                mDeclineX = motionEvent.x
+            }
+            MotionEvent.ACTION_MOVE -> {
+                curX = motionEvent.x
+                view.scrollBy((mDeclineX - curX).toInt(), view.scrollY)
+                mDeclineX = curX
+                if (curX > 3 * width / 4) {
+                    binding.viewModel?.decline(true)
+                }
+            }
+            MotionEvent.ACTION_UP -> {
+                binding.answerButton.visibility = View.VISIBLE
+                view.scrollTo(0, view.scrollY)
+            }
+        }
+        true
+    }
+
+    constructor(context: Context) : super(context) {
+        init(context)
+    }
+
+    constructor(context: Context, attrs: AttributeSet) : super(
+        context,
+        attrs
+    ) {
+        init(context)
+    }
+
+    constructor(
+        context: Context,
+        attrs: AttributeSet,
+        defStyleAttr: Int
+    ) : super(context, attrs, defStyleAttr) {
+        init(context)
+    }
+
+    fun setViewModel(viewModel: IncomingCallViewModel) {
+        binding.viewModel = viewModel
+
+        updateSlideMode()
+    }
+
+    private fun init(context: Context) {
+        binding = DataBindingUtil.inflate(
+            LayoutInflater.from(context), R.layout.call_incoming_answer_decline_buttons, this, true
+        )
+
+        updateSlideMode()
+    }
+
+    private fun updateSlideMode() {
+        val slideMode = binding.viewModel?.screenLocked?.value == true
+        Log.i("[Call Incoming Decline Button] Slide mode is $slideMode")
+        if (slideMode) {
+            binding.answerButton.setOnTouchListener(mAnswerTouchListener)
+            binding.declineButton.setOnTouchListener(mDeclineTouchListener)
+        }
+    }
+}

app/src/main/java/org/linphone/activities/call/views/ConferenceCallView.kt

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.views
+
+import android.content.Context
+import android.os.SystemClock
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.widget.LinearLayout
+import androidx.databinding.DataBindingUtil
+import org.linphone.R
+import org.linphone.activities.call.viewmodels.CallViewModel
+import org.linphone.databinding.CallConferenceBinding
+
+class ConferenceCallView : LinearLayout {
+    private lateinit var binding: CallConferenceBinding
+
+    constructor(context: Context) : super(context) {
+        init(context)
+    }
+
+    constructor(context: Context, attrs: AttributeSet) : super(
+        context,
+        attrs
+    ) {
+        init(context)
+    }
+
+    constructor(
+        context: Context,
+        attrs: AttributeSet,
+        defStyleAttr: Int
+    ) : super(context, attrs, defStyleAttr) {
+        init(context)
+    }
+
+    fun init(context: Context) {
+        binding = DataBindingUtil.inflate(
+            LayoutInflater.from(context), R.layout.call_conference, this, true
+        )
+    }
+
+    fun setViewModel(viewModel: CallViewModel) {
+        binding.viewModel = viewModel
+
+        binding.callTimer.base =
+            SystemClock.elapsedRealtime() - (1000 * viewModel.call.duration) // Linphone timestamps are in seconds
+        binding.callTimer.start()
+    }
+}

app/src/main/java/org/linphone/activities/call/views/PausedCallView.kt

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.call.views
+
+import android.content.Context
+import android.os.SystemClock
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.widget.LinearLayout
+import androidx.databinding.DataBindingUtil
+import org.linphone.R
+import org.linphone.activities.call.viewmodels.CallViewModel
+import org.linphone.databinding.CallPausedBinding
+
+class PausedCallView : LinearLayout {
+    private lateinit var binding: CallPausedBinding
+
+    constructor(context: Context) : super(context) {
+        init(context)
+    }
+
+    constructor(context: Context, attrs: AttributeSet) : super(
+        context,
+        attrs
+    ) {
+        init(context)
+    }
+
+    constructor(
+        context: Context,
+        attrs: AttributeSet,
+        defStyleAttr: Int
+    ) : super(context, attrs, defStyleAttr) {
+        init(context)
+    }
+
+    fun init(context: Context) {
+        binding = DataBindingUtil.inflate(
+            LayoutInflater.from(context), R.layout.call_paused, this, true
+        )
+    }
+
+    fun setViewModel(viewModel: CallViewModel) {
+        binding.viewModel = viewModel
+
+        binding.callTimer.base =
+            SystemClock.elapsedRealtime() - (1000 * viewModel.call.duration) // Linphone timestamps are in seconds
+        binding.callTimer.start()
+    }
+}

app/src/main/java/org/linphone/activities/launcher/LauncherActivity.kt

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.launcher
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.MainActivity
+import org.linphone.core.tools.Log
+
+class LauncherActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContentView(R.layout.launcher_activity)
+    }
+
+    override fun onStart() {
+        super.onStart()
+        coreContext.handler.postDelayed({ onReady() }, 500)
+    }
+
+    private fun onReady() {
+        Log.i("[Launcher] Core is ready")
+        val intent = Intent()
+        intent.setClass(this, MainActivity::class.java)
+
+        // Propagate current intent action, type and data
+        if (getIntent() != null) {
+            val extras = getIntent().extras
+            if (extras != null) intent.putExtras(extras)
+        }
+        intent.action = getIntent().action
+        intent.type = getIntent().type
+        intent.data = getIntent().data
+
+        startActivity(intent)
+    }
+}

app/src/main/java/org/linphone/activities/main/MainActivity.kt

@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main
+
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.os.Parcelable
+import android.view.Gravity
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.findNavController
+import com.google.android.material.snackbar.Snackbar
+import java.io.UnsupportedEncodingException
+import java.net.URLDecoder
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
+import org.linphone.activities.GenericActivity
+import org.linphone.activities.SnackBarActivity
+import org.linphone.activities.assistant.AssistantActivity
+import org.linphone.activities.call.CallActivity
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.compatibility.Compatibility
+import org.linphone.contact.ContactsUpdatedListenerStub
+import org.linphone.core.tools.Log
+import org.linphone.databinding.MainActivityBinding
+import org.linphone.utils.AppUtils
+import org.linphone.utils.FileUtils
+
+class MainActivity : GenericActivity(), SnackBarActivity {
+    private lateinit var binding: MainActivityBinding
+    private lateinit var sharedViewModel: SharedMainViewModel
+
+    private val listener = object : ContactsUpdatedListenerStub() {
+        override fun onContactsUpdated() {
+            if (corePreferences.contactsShortcuts) {
+                Log.i("[Main Activity] Contact(s) updated, update shortcuts")
+                Compatibility.createShortcutsToContacts(this@MainActivity)
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = DataBindingUtil.setContentView(this, R.layout.main_activity)
+        binding.lifecycleOwner = this
+
+        sharedViewModel = ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        binding.viewModel = sharedViewModel
+
+        sharedViewModel.toggleDrawerEvent.observe(this, Observer {
+            it.consume {
+                if (binding.sideMenu.isDrawerOpen(Gravity.LEFT)) {
+                    binding.sideMenu.closeDrawer(binding.sideMenuContent, true)
+                } else {
+                    binding.sideMenu.openDrawer(binding.sideMenuContent, true)
+                }
+            }
+        })
+
+        binding.setGoBackToCallClickListener {
+            val intent = Intent(this, CallActivity::class.java)
+            intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT)
+            startActivity(intent)
+        }
+
+        if (intent != null) handleIntentParams(intent)
+
+        if (coreContext.core.proxyConfigList.isEmpty()) {
+            if (corePreferences.firstStart) {
+                corePreferences.firstStart = false
+                startActivity(Intent(this, AssistantActivity::class.java))
+            }
+        }
+    }
+
+    override fun onNewIntent(intent: Intent?) {
+        super.onNewIntent(intent)
+
+        if (intent != null) handleIntentParams(intent)
+    }
+
+    override fun onResume() {
+        super.onResume()
+        coreContext.contactsManager.addListener(listener)
+    }
+
+    override fun onPause() {
+        coreContext.contactsManager.removeListener(listener)
+        super.onPause()
+    }
+
+    override fun showSnackBar(resourceId: Int) {
+        Snackbar.make(binding.coordinator, resourceId, Snackbar.LENGTH_LONG).show()
+    }
+
+    private fun handleIntentParams(intent: Intent) {
+        when (intent.action) {
+            Intent.ACTION_SEND -> {
+                handleSendImage(intent)
+            }
+            Intent.ACTION_SEND_MULTIPLE -> {
+                handleSendMultipleImages(intent)
+            }
+            Intent.ACTION_VIEW -> {
+                if (intent.type == AppUtils.getString(R.string.linphone_address_mime_type)) {
+                    val contactUri = intent.data
+                    if (contactUri != null) {
+                        val contactId = coreContext.contactsManager.getAndroidContactIdFromUri(contactUri)
+                        if (contactId != null) {
+                            val deepLink = "linphone-android://contact/view/$contactId"
+                            Log.i("[Main Activity] Found contact URI parameter in intent: $contactUri, starting deep link: $deepLink")
+                            findNavController(R.id.nav_host_fragment).navigate(Uri.parse(deepLink))
+                        }
+                    }
+                }
+            }
+            Intent.ACTION_DIAL, Intent.ACTION_CALL -> {
+                val uri = intent.data
+                if (uri != null) {
+                    Log.i("[Main Activity] Found uri: $uri to call")
+                    val stringUri = uri.toString()
+                    var addressToCall: String = stringUri
+                    try {
+                        addressToCall = URLDecoder.decode(stringUri, "UTF-8")
+                    } catch (e: UnsupportedEncodingException) {}
+
+                    if (addressToCall.startsWith("sip:")) {
+                        addressToCall = addressToCall.substring("sip:".length)
+                    } else if (addressToCall.startsWith("tel:")) {
+                        addressToCall = addressToCall.substring("tel:".length)
+                    }
+
+                    Log.i("[Main Activity] Starting dialer with pre-filled URI $addressToCall")
+                    val args = Bundle()
+                    args.putString("URI", addressToCall)
+                    findNavController(R.id.nav_host_fragment).navigate(R.id.action_global_dialerFragment, args)
+                }
+            }
+            else -> {
+                when {
+                    intent.hasExtra("ContactId") -> {
+                        val id = intent.getStringExtra("ContactId")
+                        val deepLink = "linphone-android://contact/view/$id"
+                        Log.i("[Main Activity] Found contact id parameter in intent: $id, starting deep link: $deepLink")
+                        findNavController(R.id.nav_host_fragment).navigate(Uri.parse(deepLink))
+                    }
+                    intent.hasExtra("Chat") -> {
+                        Log.i("[Main Activity] Found chat intent extra, go to chat rooms list")
+                        findNavController(R.id.nav_host_fragment).navigate(R.id.action_global_masterChatRoomsFragment)
+                    }
+                    intent.hasExtra("Dialer") -> {
+                        Log.i("[Main Activity] Found dialer intent extra, go to dialer")
+                        val args = Bundle()
+                        args.putBoolean("Transfer", intent.getBooleanExtra("Transfer", false))
+                        findNavController(R.id.nav_host_fragment).navigate(R.id.action_global_dialerFragment, args)
+                    }
+                }
+            }
+        }
+    }
+
+    private fun handleSendImage(intent: Intent) {
+        (intent.getParcelableExtra<Parcelable>(Intent.EXTRA_STREAM) as? Uri)?.let {
+            val list = arrayListOf<String>()
+            val path = FileUtils.getFilePath(this, it)
+            if (path != null) {
+                list.add(path)
+                Log.i("[Main Activity] Found single file to share: $path")
+            }
+            sharedViewModel.filesToShare.value = list
+
+            val deepLink = "linphone-android://chat/"
+            Log.i("[Main Activity] Starting deep link: $deepLink")
+            findNavController(R.id.nav_host_fragment).navigate(Uri.parse(deepLink))
+        }
+    }
+
+    private fun handleSendMultipleImages(intent: Intent) {
+        intent.getParcelableArrayListExtra<Parcelable>(Intent.EXTRA_STREAM)?.let {
+            val list = arrayListOf<String>()
+            for (parcelable in it) {
+                val uri = parcelable as Uri
+                val path = FileUtils.getFilePath(this, uri)
+                Log.i("[Main Activity] Found file to share: $path")
+                if (path != null) list.add(path)
+            }
+            sharedViewModel.filesToShare.value = list
+
+            val deepLink = "linphone-android://chat/"
+            Log.i("[Main Activity] Starting deep link: $deepLink")
+            findNavController(R.id.nav_host_fragment).navigate(Uri.parse(deepLink))
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/about/AboutFragment.kt

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.about
+
+import android.content.*
+import android.net.Uri
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.R
+import org.linphone.activities.main.MainActivity
+import org.linphone.core.tools.Log
+import org.linphone.databinding.AboutFragmentBinding
+
+class AboutFragment : Fragment() {
+    private lateinit var binding: AboutFragmentBinding
+    private lateinit var viewModel: AboutViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = AboutFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        viewModel = ViewModelProvider(this).get(AboutViewModel::class.java)
+        binding.viewModel = viewModel
+
+        binding.setBackClickListener { findNavController().popBackStack() }
+
+        binding.setPrivacyPolicyClickListener {
+            val browserIntent = Intent(
+                Intent.ACTION_VIEW,
+                Uri.parse(getString(R.string.about_privacy_policy_link))
+            )
+            startActivity(browserIntent)
+        }
+
+        binding.setLicenseClickListener {
+            val browserIntent = Intent(
+                Intent.ACTION_VIEW,
+                Uri.parse(getString(R.string.about_license_link))
+            )
+            startActivity(browserIntent)
+        }
+
+        viewModel.uploadFinishedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { url ->
+                val clipboard =
+                    requireContext().getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+                val clip = ClipData.newPlainText("Logs url", url)
+                clipboard.setPrimaryClip(clip)
+
+                val activity = requireActivity() as MainActivity
+                activity.showSnackBar(R.string.logs_url_copied_to_clipboard)
+
+                shareUploadedLogsUrl(url)
+            }
+        })
+    }
+
+    // Logs
+    private fun shareUploadedLogsUrl(info: String) {
+        val appName = getString(R.string.app_name)
+        val intent = Intent(Intent.ACTION_SEND)
+        intent.putExtra(
+            Intent.EXTRA_EMAIL,
+            arrayOf(getString(R.string.about_bugreport_email))
+        )
+        intent.putExtra(Intent.EXTRA_SUBJECT, "$appName Logs")
+        intent.putExtra(Intent.EXTRA_TEXT, info)
+        intent.type = "application/zip"
+
+        try {
+            startActivity(Intent.createChooser(intent, "Send mail..."))
+        } catch (ex: ActivityNotFoundException) {
+            Log.e(ex)
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/about/AboutViewModel.kt

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.about
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.core.Core
+import org.linphone.core.CoreListenerStub
+import org.linphone.utils.Event
+
+class AboutViewModel : ViewModel() {
+    val appVersion: String = coreContext.appVersion
+
+    val sdkVersion: String = coreContext.sdkVersion
+
+    val showLogsButtons: Boolean = corePreferences.debugLogs
+
+    val uploadInProgress = MutableLiveData<Boolean>()
+
+    val uploadFinishedEvent: MutableLiveData<Event<String>> by lazy {
+        MutableLiveData<Event<String>>()
+    }
+
+    private val listener = object : CoreListenerStub() {
+        override fun onLogCollectionUploadStateChanged(
+            core: Core,
+            state: Core.LogCollectionUploadState,
+            info: String
+        ) {
+            if (state == Core.LogCollectionUploadState.Delivered) {
+                uploadInProgress.value = false
+                uploadFinishedEvent.value = Event(info)
+            } else if (state == Core.LogCollectionUploadState.NotDelivered) {
+                uploadInProgress.value = false
+            }
+        }
+    }
+
+    init {
+        coreContext.core.addListener(listener)
+        uploadInProgress.value = false
+    }
+
+    override fun onCleared() {
+        coreContext.core.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun uploadLogs() {
+        uploadInProgress.value = true
+        coreContext.core.uploadLogCollection()
+    }
+
+    fun resetLogs() {
+        coreContext.core.resetLogCollection()
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/ChatScrollListener.kt

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat
+
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+
+internal abstract class ChatScrollListener(private val mLayoutManager: LinearLayoutManager) :
+    RecyclerView.OnScrollListener() {
+    // The total number of items in the data set after the last load
+    private var previousTotalItemCount = 0
+    // True if we are still waiting for the last set of data to load.
+    private var loading = true
+
+    // This happens many times a second during a scroll, so be wary of the code you place here.
+    // We are given a few useful parameters to help us work out if we need to load some more data,
+    // but first we check if we are waiting for the previous load to finish.
+    override fun onScrolled(view: RecyclerView, dx: Int, dy: Int) {
+        val totalItemCount = mLayoutManager.itemCount
+        val firstVisibleItemPosition: Int = mLayoutManager.findFirstVisibleItemPosition()
+        val lastVisibleItemPosition: Int = mLayoutManager.findLastVisibleItemPosition()
+
+        // If the total item count is zero and the previous isn't, assume the
+        // list is invalidated and should be reset back to initial state
+        if (totalItemCount < previousTotalItemCount) {
+            previousTotalItemCount = totalItemCount
+            if (totalItemCount == 0) {
+                loading = true
+            }
+        }
+
+        // If it’s still loading, we check to see if the data set count has
+        // changed, if so we conclude it has finished loading and update the current page
+        // number and total item count.
+        if (loading && totalItemCount > previousTotalItemCount) {
+            loading = false
+            previousTotalItemCount = totalItemCount
+        }
+
+        // If it isn’t currently loading, we check to see if we have breached
+        // the mVisibleThreshold and need to reload more data.
+        // If we do need to reload some more data, we execute onLoadMore to fetch the data.
+        // threshold should reflect how many total columns there are too
+        if (!loading && firstVisibleItemPosition < mVisibleThreshold && firstVisibleItemPosition > 0 && lastVisibleItemPosition < totalItemCount - mVisibleThreshold) {
+            onLoadMore(totalItemCount)
+            loading = true
+        }
+    }
+
+    // Defines the process for actually loading more data based on page
+    protected abstract fun onLoadMore(totalItemsCount: Int)
+
+    companion object {
+        // The minimum amount of items to have below your current scroll position
+        // before loading more.
+        private const val mVisibleThreshold = 5
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/GroupChatRoomMember.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat
+
+import org.linphone.core.Address
+import org.linphone.core.ChatRoomSecurityLevel
+
+data class GroupChatRoomMember(
+    val address: Address,
+    var isAdmin: Boolean = false,
+    val securityLevel: ChatRoomSecurityLevel = ChatRoomSecurityLevel.ClearText,
+    val hasLimeX3DHCapability: Boolean = false
+)

app/src/main/java/org/linphone/activities/main/chat/adapters/ChatMessagesListAdapter.kt

@@ -0,0 +1,330 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.adapters
+
+import android.content.ClipData
+import android.content.ClipboardManager
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.MenuItem
+import android.view.ViewGroup
+import androidx.appcompat.widget.PopupMenu
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DiffUtil
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.chat.viewmodels.ChatMessageViewModel
+import org.linphone.activities.main.chat.viewmodels.EventViewModel
+import org.linphone.activities.main.chat.viewmodels.OnContentClickedListener
+import org.linphone.activities.main.viewmodels.ListTopBarViewModel
+import org.linphone.core.ChatMessage
+import org.linphone.core.ChatRoomCapabilities
+import org.linphone.core.EventLog
+import org.linphone.databinding.ChatEventListCellBinding
+import org.linphone.databinding.ChatMessageListCellBinding
+import org.linphone.utils.Event
+import org.linphone.utils.LifecycleListAdapter
+import org.linphone.utils.LifecycleViewHolder
+
+class ChatMessagesListAdapter(val selectionViewModel: ListTopBarViewModel) : LifecycleListAdapter<EventLog, LifecycleViewHolder>(ChatMessageDiffCallback()) {
+    companion object {
+        const val MAX_TIME_TO_GROUP_MESSAGES = 300 // 5 minutes
+    }
+
+    val resendMessageEvent: MutableLiveData<Event<ChatMessage>> by lazy {
+        MutableLiveData<Event<ChatMessage>>()
+    }
+
+    val deleteMessageEvent: MutableLiveData<Event<ChatMessage>> by lazy {
+        MutableLiveData<Event<ChatMessage>>()
+    }
+
+    val forwardMessageEvent: MutableLiveData<Event<ChatMessage>> by lazy {
+        MutableLiveData<Event<ChatMessage>>()
+    }
+
+    val showImdnForMessageEvent: MutableLiveData<Event<ChatMessage>> by lazy {
+        MutableLiveData<Event<ChatMessage>>()
+    }
+
+    val addSipUriToContactEvent: MutableLiveData<Event<String>> by lazy {
+        MutableLiveData<Event<String>>()
+    }
+
+    val openContentEvent: MutableLiveData<Event<String>> by lazy {
+        MutableLiveData<Event<String>>()
+    }
+
+    private val contentClickedListener = object : OnContentClickedListener {
+        override fun onContentClicked(path: String) {
+            openContentEvent.value = Event(path)
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): LifecycleViewHolder {
+        return when (viewType) {
+            EventLog.Type.ConferenceChatMessage.toInt() -> createChatMessageViewHolder(parent)
+            else -> createEventViewHolder(parent)
+        }
+    }
+
+    private fun createChatMessageViewHolder(parent: ViewGroup): ChatMessageViewHolder {
+        val binding: ChatMessageListCellBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(parent.context),
+            R.layout.chat_message_list_cell, parent, false
+        )
+        val viewHolder = ChatMessageViewHolder(binding)
+        binding.lifecycleOwner = viewHolder
+        return viewHolder
+    }
+
+    private fun createEventViewHolder(parent: ViewGroup): EventViewHolder {
+        val binding: ChatEventListCellBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(parent.context),
+            R.layout.chat_event_list_cell, parent, false
+        )
+        val viewHolder = EventViewHolder(binding)
+        binding.lifecycleOwner = viewHolder
+        return viewHolder
+    }
+
+    override fun onBindViewHolder(holder: LifecycleViewHolder, position: Int) {
+        val eventLog = getItem(position)
+        when (holder) {
+            is ChatMessageViewHolder -> holder.bind(eventLog)
+            is EventViewHolder -> holder.bind(eventLog)
+        }
+    }
+
+    override fun getItemViewType(position: Int): Int {
+        val eventLog = getItem(position)
+        return eventLog.type.toInt()
+    }
+
+    inner class ChatMessageViewHolder(
+        private val binding: ChatMessageListCellBinding
+    ) : LifecycleViewHolder(binding), PopupMenu.OnMenuItemClickListener {
+        fun bind(eventLog: EventLog) {
+            with(binding) {
+                if (eventLog.type == EventLog.Type.ConferenceChatMessage) {
+                    val chatMessage = eventLog.chatMessage
+                    val chatMessageViewModel = ChatMessageViewModel(chatMessage, contentClickedListener)
+                    viewModel = chatMessageViewModel
+
+                    // This is for item selection through ListTopBarFragment
+                    selectionListViewModel = selectionViewModel
+                    selectionViewModel.isEditionEnabled.observe(this@ChatMessageViewHolder, Observer {
+                        position = adapterPosition
+                    })
+
+                    binding.setClickListener {
+                        if (selectionViewModel.isEditionEnabled.value == true) {
+                            selectionViewModel.onToggleSelect(adapterPosition)
+                        }
+                    }
+
+                    // Grouping
+                    var hasPrevious = false
+                    var hasNext = false
+
+                    if (adapterPosition > 0) {
+                        val previousItem = getItem(adapterPosition - 1)
+                        if (previousItem.type == EventLog.Type.ConferenceChatMessage) {
+                            val previousMessage = previousItem.chatMessage
+                            if (previousMessage.fromAddress.weakEqual(chatMessage.fromAddress)) {
+                                if (chatMessage.time - previousMessage.time < MAX_TIME_TO_GROUP_MESSAGES) {
+                                    hasPrevious = true
+                                }
+                            }
+                        }
+                    }
+
+                    if (adapterPosition >= 0 && adapterPosition < itemCount - 1) {
+                        val nextItem = getItem(adapterPosition + 1)
+                        if (nextItem.type == EventLog.Type.ConferenceChatMessage) {
+                            val nextMessage = nextItem.chatMessage
+                            if (nextMessage.fromAddress.weakEqual(chatMessage.fromAddress)) {
+                                if (nextMessage.time - chatMessage.time < MAX_TIME_TO_GROUP_MESSAGES) {
+                                    hasNext = true
+                                }
+                            }
+                        }
+                    }
+
+                    chatMessageViewModel.updateBubbleBackground(hasPrevious, hasNext)
+
+                    executePendingBindings()
+
+                    setContextMenuClickListener {
+                        val popup = PopupMenu(root.context, background)
+                        popup.setOnMenuItemClickListener(this@ChatMessageViewHolder)
+                        popup.inflate(R.menu.chat_message_menu)
+
+                        if (!chatMessage.isOutgoing ||
+                            chatMessage.chatRoom.hasCapability(ChatRoomCapabilities.Basic.toInt()) ||
+                            chatMessage.state == ChatMessage.State.NotDelivered) { // No message id
+                            popup.menu.removeItem(R.id.chat_message_menu_imdn_infos)
+                        }
+                        if (chatMessage.state != ChatMessage.State.NotDelivered) {
+                            popup.menu.removeItem(R.id.chat_message_menu_resend)
+                        }
+                        if (!chatMessage.hasTextContent()) {
+                            popup.menu.removeItem(R.id.chat_message_menu_copy_text)
+                        }
+                        if (chatMessageViewModel.contact.value != null) {
+                            popup.menu.removeItem(R.id.chat_message_menu_add_to_contacts)
+                        }
+
+                        popup.show()
+                        true
+                    }
+                }
+            }
+        }
+
+        override fun onMenuItemClick(item: MenuItem): Boolean {
+            return when (item.itemId) {
+                R.id.chat_message_menu_imdn_infos -> {
+                    showImdnDeliveryFragment()
+                    true
+                }
+                R.id.chat_message_menu_resend -> {
+                    resendMessage()
+                    true
+                }
+                R.id.chat_message_menu_copy_text -> {
+                    copyTextToClipboard()
+                    true
+                }
+                R.id.chat_message_forward_message -> {
+                    forwardMessage()
+                    true
+                }
+                R.id.chat_message_menu_delete_message -> {
+                    deleteMessage()
+                    true
+                }
+                R.id.chat_message_menu_add_to_contacts -> {
+                    addSenderToContacts()
+                    true
+                }
+                else -> false
+            }
+        }
+
+        private fun resendMessage() {
+            val chatMessage = binding.viewModel?.chatMessage
+            if (chatMessage != null) {
+                val viewHolder = binding.lifecycleOwner as ChatMessageViewHolder
+                chatMessage.userData = viewHolder.adapterPosition
+                resendMessageEvent.value = Event(chatMessage)
+            }
+        }
+
+        private fun copyTextToClipboard() {
+            val chatMessage = binding.viewModel?.chatMessage
+            if (chatMessage != null && chatMessage.hasTextContent()) {
+                val clipboard: ClipboardManager = coreContext.context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+                val clip = ClipData.newPlainText("Message", chatMessage.textContent)
+                clipboard.setPrimaryClip(clip)
+            }
+        }
+
+        private fun forwardMessage() {
+            val chatMessage = binding.viewModel?.chatMessage
+            if (chatMessage != null) {
+                forwardMessageEvent.value = Event(chatMessage)
+            }
+        }
+
+        private fun showImdnDeliveryFragment() {
+            val chatMessage = binding.viewModel?.chatMessage
+            if (chatMessage != null) {
+                showImdnForMessageEvent.value = Event(chatMessage)
+            }
+        }
+
+        private fun deleteMessage() {
+            val chatMessage = binding.viewModel?.chatMessage
+            if (chatMessage != null) {
+                val viewHolder = binding.lifecycleOwner as ChatMessageViewHolder
+                chatMessage.userData = viewHolder.adapterPosition
+                deleteMessageEvent.value = Event(chatMessage)
+            }
+        }
+
+        private fun addSenderToContacts() {
+            val chatMessage = binding.viewModel?.chatMessage
+            if (chatMessage != null) {
+                chatMessage.fromAddress.clean() // To remove gruu if any
+                addSipUriToContactEvent.value = Event(chatMessage.fromAddress.asStringUriOnly())
+            }
+        }
+    }
+
+    inner class EventViewHolder(
+        private val binding: ChatEventListCellBinding
+    ) : LifecycleViewHolder(binding) {
+        fun bind(eventLog: EventLog) {
+            with(binding) {
+                val eventViewModel = EventViewModel(eventLog)
+                viewModel = eventViewModel
+
+                // This is for item selection through ListTopBarFragment
+                selectionListViewModel = selectionViewModel
+                selectionViewModel.isEditionEnabled.observe(this@EventViewHolder, Observer {
+                    position = adapterPosition
+                })
+
+                binding.setClickListener {
+                    if (selectionViewModel.isEditionEnabled.value == true) {
+                        selectionViewModel.onToggleSelect(adapterPosition)
+                    }
+                }
+
+                executePendingBindings()
+            }
+        }
+    }
+}
+
+private class ChatMessageDiffCallback : DiffUtil.ItemCallback<EventLog>() {
+    override fun areItemsTheSame(
+        oldItem: EventLog,
+        newItem: EventLog
+    ): Boolean {
+        return if (oldItem.type == EventLog.Type.ConferenceChatMessage &&
+            newItem.type == EventLog.Type.ConferenceChatMessage) {
+            oldItem.chatMessage.time == newItem.chatMessage.time &&
+                    oldItem.chatMessage.isOutgoing == newItem.chatMessage.isOutgoing
+        } else oldItem.notifyId == newItem.notifyId
+    }
+
+    override fun areContentsTheSame(
+        oldItem: EventLog,
+        newItem: EventLog
+    ): Boolean {
+        return if (newItem.type == EventLog.Type.ConferenceChatMessage) {
+            newItem.chatMessage.state == ChatMessage.State.Displayed
+        } else false
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/adapters/ChatRoomCreationContactsAdapter.kt

@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.adapters
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DiffUtil
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.chat.viewmodels.ChatRoomCreationContactViewModel
+import org.linphone.core.Address
+import org.linphone.core.FriendCapability
+import org.linphone.core.SearchResult
+import org.linphone.databinding.ChatRoomCreationContactCellBinding
+import org.linphone.utils.Event
+import org.linphone.utils.LifecycleListAdapter
+import org.linphone.utils.LifecycleViewHolder
+
+class ChatRoomCreationContactsAdapter : LifecycleListAdapter<SearchResult, ChatRoomCreationContactsAdapter.ViewHolder>(SearchResultDiffCallback()) {
+    val selectedContact = MutableLiveData<Event<SearchResult>>()
+
+    val selectedAddresses = MutableLiveData<ArrayList<Address>>()
+
+    var groupChatEnabled: Boolean = false
+
+    val securityEnabled = MutableLiveData<Boolean>()
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val binding: ChatRoomCreationContactCellBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(parent.context),
+            R.layout.chat_room_creation_contact_cell, parent, false
+        )
+        val viewHolder = ViewHolder(binding)
+        binding.lifecycleOwner = viewHolder
+        return viewHolder
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(getItem(position))
+    }
+
+    inner class ViewHolder(
+        private val binding: ChatRoomCreationContactCellBinding
+    ) : LifecycleViewHolder(binding) {
+        fun bind(searchResult: SearchResult) {
+            with(binding) {
+                val searchResultViewModel = ChatRoomCreationContactViewModel(searchResult)
+                viewModel = searchResultViewModel
+
+                securityEnabled.observe(this@ViewHolder, Observer {
+                    updateSecurity(searchResult, searchResultViewModel, it)
+                })
+
+                selectedAddresses.observe(this@ViewHolder, Observer {
+                    val selected = it.find { address ->
+                        if (searchResult.address != null) address.weakEqual(searchResult.address) else false
+                    }
+                    searchResultViewModel.isSelected.value = selected != null
+                })
+
+                setClickListener {
+                    selectedContact.value = Event(searchResult)
+                }
+
+                executePendingBindings()
+            }
+        }
+
+        private fun updateSecurity(
+            searchResult: SearchResult,
+            viewModel: ChatRoomCreationContactViewModel,
+            securityEnabled: Boolean
+        ) {
+            val isMyself = securityEnabled && searchResult.address != null && coreContext.core.defaultProxyConfig?.identityAddress?.weakEqual(searchResult.address) ?: false
+            val limeCheck = !securityEnabled || (securityEnabled && searchResult.hasCapability(FriendCapability.LimeX3Dh))
+            val groupCheck = !groupChatEnabled || (groupChatEnabled && searchResult.hasCapability(FriendCapability.GroupChat))
+            val disabled = if (searchResult.friend != null) !limeCheck || !groupCheck || isMyself else false // Generated entry from search filter
+
+            viewModel.isDisabled.value = disabled
+
+            if (disabled && viewModel.isSelected.value == true) {
+                // Remove item from selection if both selected and disabled
+                selectedContact.postValue(Event(searchResult))
+            }
+        }
+    }
+}
+
+private class SearchResultDiffCallback : DiffUtil.ItemCallback<SearchResult>() {
+    override fun areItemsTheSame(
+        oldItem: SearchResult,
+        newItem: SearchResult
+    ): Boolean {
+        return if (oldItem.address != null && newItem.address != null) oldItem.address.weakEqual(newItem.address) else false
+    }
+
+    override fun areContentsTheSame(
+        oldItem: SearchResult,
+        newItem: SearchResult
+    ): Boolean {
+        return newItem.friend != null
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/adapters/ChatRoomsListAdapter.kt

@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.adapters
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DiffUtil
+import org.linphone.R
+import org.linphone.activities.main.chat.viewmodels.ChatRoomViewModel
+import org.linphone.activities.main.viewmodels.ListTopBarViewModel
+import org.linphone.core.ChatRoom
+import org.linphone.databinding.ChatRoomListCellBinding
+import org.linphone.utils.Event
+import org.linphone.utils.LifecycleListAdapter
+import org.linphone.utils.LifecycleViewHolder
+
+class ChatRoomsListAdapter(val selectionViewModel: ListTopBarViewModel) : LifecycleListAdapter<ChatRoom, ChatRoomsListAdapter.ViewHolder>(ChatRoomDiffCallback()) {
+    val selectedChatRoomEvent: MutableLiveData<Event<ChatRoom>> by lazy {
+        MutableLiveData<Event<ChatRoom>>()
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val binding: ChatRoomListCellBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(parent.context),
+            R.layout.chat_room_list_cell, parent, false
+        )
+        val viewHolder = ViewHolder(binding)
+        binding.lifecycleOwner = viewHolder
+        return viewHolder
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(getItem(position))
+    }
+
+    inner class ViewHolder(
+        private val binding: ChatRoomListCellBinding
+    ) : LifecycleViewHolder(binding) {
+        fun bind(chatRoom: ChatRoom) {
+            with(binding) {
+                val chatRoomViewModel = ChatRoomViewModel(chatRoom)
+                viewModel = chatRoomViewModel
+
+                // This is for item selection through ListTopBarFragment
+                selectionListViewModel = selectionViewModel
+                selectionViewModel.isEditionEnabled.observe(this@ViewHolder, Observer {
+                    position = adapterPosition
+                })
+
+                binding.setClickListener {
+                    if (selectionViewModel.isEditionEnabled.value == true) {
+                        selectionViewModel.onToggleSelect(adapterPosition)
+                    } else {
+                        selectedChatRoomEvent.value = Event(chatRoom)
+                        chatRoom.markAsRead()
+                    }
+                }
+
+                executePendingBindings()
+            }
+        }
+    }
+}
+
+private class ChatRoomDiffCallback : DiffUtil.ItemCallback<ChatRoom>() {
+    override fun areItemsTheSame(
+        oldItem: ChatRoom,
+        newItem: ChatRoom
+    ): Boolean {
+        return oldItem.localAddress.weakEqual(newItem.localAddress) &&
+                oldItem.peerAddress.weakEqual(newItem.peerAddress)
+    }
+
+    override fun areContentsTheSame(
+        oldItem: ChatRoom,
+        newItem: ChatRoom
+    ): Boolean {
+        return newItem.unreadMessagesCount == 0
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/adapters/GroupInfoParticipantsAdapter.kt

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.adapters
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.lifecycle.MutableLiveData
+import androidx.recyclerview.widget.DiffUtil
+import org.linphone.R
+import org.linphone.activities.main.chat.GroupChatRoomMember
+import org.linphone.activities.main.chat.viewmodels.GroupInfoParticipantViewModel
+import org.linphone.databinding.ChatRoomGroupInfoParticipantCellBinding
+import org.linphone.utils.Event
+import org.linphone.utils.LifecycleListAdapter
+import org.linphone.utils.LifecycleViewHolder
+
+class GroupInfoParticipantsAdapter(private val isEncryptionEnabled: Boolean) : LifecycleListAdapter<GroupChatRoomMember,
+        GroupInfoParticipantsAdapter.ViewHolder>(ParticipantDiffCallback()) {
+    private var showAdmin: Boolean = false
+
+    val participantRemovedEvent: MutableLiveData<Event<GroupChatRoomMember>> by lazy {
+        MutableLiveData<Event<GroupChatRoomMember>>()
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val binding: ChatRoomGroupInfoParticipantCellBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(parent.context),
+            R.layout.chat_room_group_info_participant_cell, parent, false
+        )
+        val viewHolder = ViewHolder(binding)
+        binding.lifecycleOwner = viewHolder
+        return viewHolder
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(getItem(position))
+    }
+
+    fun showAdminControls(show: Boolean) {
+        showAdmin = show
+        notifyDataSetChanged()
+    }
+
+    inner class ViewHolder(
+        private val binding: ChatRoomGroupInfoParticipantCellBinding
+    ) : LifecycleViewHolder(binding) {
+        fun bind(participant: GroupChatRoomMember) {
+            with(binding) {
+                val participantViewModel = GroupInfoParticipantViewModel(participant)
+                participantViewModel.showAdminControls.value = showAdmin
+                viewModel = participantViewModel
+
+                setRemoveClickListener {
+                    participantRemovedEvent.value = Event(participant)
+                }
+                isEncrypted = isEncryptionEnabled
+
+                executePendingBindings()
+            }
+        }
+    }
+}
+
+private class ParticipantDiffCallback : DiffUtil.ItemCallback<GroupChatRoomMember>() {
+    override fun areItemsTheSame(
+        oldItem: GroupChatRoomMember,
+        newItem: GroupChatRoomMember
+    ): Boolean {
+        return oldItem.address.weakEqual(newItem.address)
+    }
+
+    override fun areContentsTheSame(
+        oldItem: GroupChatRoomMember,
+        newItem: GroupChatRoomMember
+    ): Boolean {
+        return false
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/adapters/ImdnAdapter.kt

@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.adapters
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import org.linphone.R
+import org.linphone.activities.main.chat.viewmodels.ImdnParticipantViewModel
+import org.linphone.core.ChatMessage
+import org.linphone.core.ParticipantImdnState
+import org.linphone.databinding.ChatRoomImdnParticipantCellBinding
+import org.linphone.databinding.ImdnListHeaderBinding
+import org.linphone.utils.HeaderAdapter
+import org.linphone.utils.LifecycleViewHolder
+
+class ImdnAdapter : ListAdapter<ParticipantImdnState,
+        ImdnAdapter.ViewHolder>(ParticipantImdnStateDiffCallback()), HeaderAdapter {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val binding: ChatRoomImdnParticipantCellBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(parent.context),
+            R.layout.chat_room_imdn_participant_cell, parent, false
+        )
+        val viewHolder = ViewHolder(binding)
+        binding.lifecycleOwner = viewHolder
+        return viewHolder
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(getItem(position))
+    }
+
+    inner class ViewHolder(
+        private val binding: ChatRoomImdnParticipantCellBinding
+    ) : LifecycleViewHolder(binding) {
+        fun bind(participantImdnState: ParticipantImdnState) {
+            with(binding) {
+                val imdnViewModel = ImdnParticipantViewModel(participantImdnState)
+                viewModel = imdnViewModel
+
+                executePendingBindings()
+            }
+        }
+    }
+
+    override fun displayHeaderForPosition(position: Int): Boolean {
+        if (position >= itemCount) return false
+        val participantImdnState = getItem(position)
+        val previousPosition = position - 1
+        return if (previousPosition >= 0) {
+            getItem(previousPosition).state != participantImdnState.state
+        } else true
+    }
+
+    override fun getHeaderViewForPosition(context: Context, position: Int): View {
+        val participantImdnState = getItem(position)
+        val binding: ImdnListHeaderBinding = DataBindingUtil.inflate(
+            LayoutInflater.from(context),
+            R.layout.imdn_list_header, null, false
+        )
+        when (participantImdnState.state) {
+            ChatMessage.State.Displayed -> {
+                binding.title = R.string.chat_message_imdn_displayed
+                binding.textColor = R.color.imdn_read_color
+                binding.icon = R.drawable.message_read
+            }
+            ChatMessage.State.DeliveredToUser -> {
+                binding.title = R.string.chat_message_imdn_delivered
+                binding.textColor = R.color.grey_color
+                binding.icon = R.drawable.message_delivered
+            }
+            ChatMessage.State.Delivered -> {
+                binding.title = R.string.chat_message_imdn_sent
+                binding.textColor = R.color.grey_color
+                binding.icon = R.drawable.message_delivered
+            }
+            ChatMessage.State.NotDelivered -> {
+                binding.title = R.string.chat_message_imdn_undelivered
+                binding.textColor = R.color.red_color
+                binding.icon = R.drawable.message_undelivered
+            }
+        }
+        binding.executePendingBindings()
+        return binding.root
+    }
+}
+
+private class ParticipantImdnStateDiffCallback : DiffUtil.ItemCallback<ParticipantImdnState>() {
+    override fun areItemsTheSame(
+        oldItem: ParticipantImdnState,
+        newItem: ParticipantImdnState
+    ): Boolean {
+        return oldItem.participant.address.weakEqual(newItem.participant.address)
+    }
+
+    override fun areContentsTheSame(
+        oldItem: ParticipantImdnState,
+        newItem: ParticipantImdnState
+    ): Boolean {
+        return false
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/ChatRoomCreationFragment.kt

@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.SearchView
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import org.linphone.R
+import org.linphone.activities.main.MainActivity
+import org.linphone.activities.main.chat.adapters.ChatRoomCreationContactsAdapter
+import org.linphone.activities.main.chat.viewmodels.ChatRoomCreationViewModel
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.core.Address
+import org.linphone.databinding.ChatRoomCreationFragmentBinding
+
+class ChatRoomCreationFragment : Fragment() {
+    private lateinit var binding: ChatRoomCreationFragmentBinding
+    private lateinit var viewModel: ChatRoomCreationViewModel
+    private lateinit var sharedViewModel: SharedMainViewModel
+    private lateinit var adapter: ChatRoomCreationContactsAdapter
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomCreationFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val createGroup = arguments?.getBoolean("createGroup") ?: false
+
+        viewModel = ViewModelProvider(this).get(ChatRoomCreationViewModel::class.java)
+        viewModel.createGroupChat.value = createGroup
+
+        viewModel.isEncrypted.value = sharedViewModel.createEncryptedChatRoom
+
+        binding.viewModel = viewModel
+
+        adapter = ChatRoomCreationContactsAdapter()
+        adapter.groupChatEnabled = viewModel.createGroupChat.value == true
+        adapter.securityEnabled.value = viewModel.isEncrypted.value == true
+        binding.contactsList.adapter = adapter
+
+        val layoutManager = LinearLayoutManager(activity)
+        binding.contactsList.layoutManager = layoutManager
+
+        // Divider between items
+        val dividerItemDecoration = DividerItemDecoration(context, layoutManager.orientation)
+        dividerItemDecoration.setDrawable(resources.getDrawable(R.drawable.divider, null))
+        binding.contactsList.addItemDecoration(dividerItemDecoration)
+
+        binding.setBackClickListener {
+            findNavController().popBackStack()
+        }
+        binding.back.visibility = if (resources.getBoolean(R.bool.isTablet)) View.INVISIBLE else View.VISIBLE
+
+        binding.setAllContactsToggleClickListener {
+            viewModel.sipContactsSelected.value = false
+        }
+
+        binding.setSipContactsToggleClickListener {
+            viewModel.sipContactsSelected.value = true
+        }
+
+        viewModel.contactsList.observe(viewLifecycleOwner, Observer {
+            adapter.submitList(it)
+        })
+
+        viewModel.isEncrypted.observe(viewLifecycleOwner, Observer {
+            adapter.securityEnabled.value = it
+        })
+
+        viewModel.sipContactsSelected.observe(viewLifecycleOwner, Observer {
+            viewModel.updateContactsList()
+        })
+
+        viewModel.selectedAddresses.observe(viewLifecycleOwner, Observer {
+            adapter.selectedAddresses.value = it
+        })
+
+        viewModel.chatRoomCreatedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatRoom ->
+                sharedViewModel.selectedChatRoom.value = chatRoom
+                if (findNavController().currentDestination?.id == R.id.chatRoomCreationFragment) {
+                    findNavController().navigate(R.id.action_chatRoomCreationFragment_to_detailChatRoomFragment)
+                }
+            }
+        })
+
+        adapter.selectedContact.observe(viewLifecycleOwner, Observer {
+            it.consume { searchResult ->
+                if (createGroup) {
+                    viewModel.toggleSelectionForSearchResult(searchResult)
+                } else {
+                    viewModel.createOneToOneChat(searchResult)
+                }
+            }
+        })
+
+        addParticipantsFromBundle()
+
+        // Next button is only used to go to group chat info fragment
+        binding.setNextClickListener {
+            sharedViewModel.createEncryptedChatRoom = viewModel.isEncrypted.value == true
+
+            if (findNavController().currentDestination?.id == R.id.chatRoomCreationFragment) {
+                val args = Bundle()
+                args.putSerializable("participants", viewModel.selectedAddresses.value)
+                findNavController().navigate(R.id.action_chatRoomCreationFragment_to_groupInfoFragment, args)
+            }
+        }
+
+        binding.searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
+            override fun onQueryTextSubmit(query: String?): Boolean {
+                return true
+            }
+
+            override fun onQueryTextChange(newText: String?): Boolean {
+                viewModel.filter(newText ?: "")
+                return true
+            }
+        })
+
+        viewModel.onErrorEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { messageResourceId ->
+                (activity as MainActivity).showSnackBar(messageResourceId)
+            }
+        })
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    private fun addParticipantsFromBundle() {
+        val participants = arguments?.getSerializable("participants") as? ArrayList<Address>
+        if (participants != null && participants.size > 0) {
+            viewModel.selectedAddresses.value = participants
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/DetailChatRoomFragment.kt

@@ -0,0 +1,565 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.app.Activity
+import android.app.Dialog
+import android.content.ActivityNotFoundException
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import android.os.Bundle
+import android.os.Parcelable
+import android.provider.MediaStore
+import android.view.*
+import android.webkit.MimeTypeMap
+import androidx.appcompat.view.menu.MenuBuilder
+import androidx.appcompat.view.menu.MenuPopupHelper
+import androidx.core.content.FileProvider
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.Navigation
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import java.io.File
+import kotlinx.android.synthetic.main.tabs_fragment.*
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
+import org.linphone.activities.main.MainActivity
+import org.linphone.activities.main.chat.ChatScrollListener
+import org.linphone.activities.main.chat.adapters.ChatMessagesListAdapter
+import org.linphone.activities.main.chat.viewmodels.*
+import org.linphone.activities.main.fragments.MasterFragment
+import org.linphone.activities.main.viewmodels.DialogViewModel
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+import org.linphone.databinding.ChatRoomDetailFragmentBinding
+import org.linphone.utils.*
+import org.linphone.utils.Event
+
+class DetailChatRoomFragment : MasterFragment() {
+    private lateinit var binding: ChatRoomDetailFragmentBinding
+    private lateinit var viewModel: ChatRoomViewModel
+    private lateinit var chatSendingViewModel: ChatMessageSendingViewModel
+    private lateinit var listViewModel: ChatMessagesListViewModel
+    private lateinit var adapter: ChatMessagesListAdapter
+    private lateinit var sharedViewModel: SharedMainViewModel
+    private var chatRoomAddress: String? = null
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomDetailFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val chatRoom = sharedViewModel.selectedChatRoom.value
+        chatRoom ?: return
+        chatRoomAddress = chatRoom.peerAddress.asStringUriOnly()
+
+        viewModel = ViewModelProvider(
+            this,
+            ChatRoomViewModelFactory(chatRoom)
+        )[ChatRoomViewModel::class.java]
+        binding.viewModel = viewModel
+
+        chatSendingViewModel = ViewModelProvider(
+            this,
+            ChatMessageSendingViewModelFactory(chatRoom)
+        )[ChatMessageSendingViewModel::class.java]
+        binding.chatSendingViewModel = chatSendingViewModel
+
+        listViewModel = ViewModelProvider(
+            this,
+            ChatMessagesListViewModelFactory(chatRoom)
+        )[ChatMessagesListViewModel::class.java]
+
+        adapter = ChatMessagesListAdapter(listSelectionViewModel)
+        // SubmitList is done on a background thread
+        // We need this adapter data observer to know when to scroll
+        adapter.registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
+            override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
+                if (positionStart == adapter.itemCount - 1) {
+                    adapter.notifyItemChanged(positionStart - 1) // For grouping purposes
+                    scrollToBottom()
+                }
+            }
+        })
+        binding.chatMessagesList.adapter = adapter
+
+        val layoutManager = LinearLayoutManager(activity)
+        layoutManager.stackFromEnd = true
+        binding.chatMessagesList.layoutManager = layoutManager
+
+        val chatScrollListener: ChatScrollListener = object : ChatScrollListener(layoutManager) {
+            override fun onLoadMore(totalItemsCount: Int) {
+                listViewModel.loadMoreData(totalItemsCount)
+            }
+        }
+        binding.chatMessagesList.addOnScrollListener(chatScrollListener)
+
+        listViewModel.events.observe(viewLifecycleOwner, Observer { events ->
+            adapter.submitList(events)
+        })
+
+        listViewModel.messageUpdatedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { position ->
+                adapter.notifyItemChanged(position)
+            }
+        })
+
+        listViewModel.requestWriteExternalStoragePermissionEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                requestPermissions(arrayOf(android.Manifest.permission.WRITE_EXTERNAL_STORAGE), 1)
+            }
+        })
+
+        adapter.deleteMessageEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatMessage ->
+                listViewModel.deleteMessage(chatMessage)
+            }
+        })
+
+        adapter.resendMessageEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatMessage ->
+                listViewModel.resendMessage(chatMessage)
+            }
+        })
+
+        adapter.forwardMessageEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatMessage ->
+                // Remove observer before setting the message to forward
+                // as we don't want to forward it in this chat room
+                sharedViewModel.messageToForwardEvent.removeObservers(viewLifecycleOwner)
+                sharedViewModel.messageToForwardEvent.value = Event(chatMessage)
+
+                val deepLink = "linphone-android://chat/"
+                Log.i("[Chat Room] Forwarding message, starting deep link: $deepLink")
+                findNavController().navigate(Uri.parse(deepLink))
+            }
+        })
+
+        adapter.showImdnForMessageEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatMessage ->
+                val args = Bundle()
+                args.putString("MessageId", chatMessage.messageId)
+                Navigation.findNavController(binding.root).navigate(R.id.action_detailChatRoomFragment_to_imdnFragment, args)
+            }
+        })
+
+        adapter.addSipUriToContactEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { sipUri ->
+                val deepLink = "linphone-android://contact/new/$sipUri"
+                Log.i("[Chat Room] Creating contact, starting deep link: $deepLink")
+                findNavController().navigate(Uri.parse(deepLink))
+            }
+        })
+
+        adapter.openContentEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { path ->
+                openFile(path)
+            }
+        })
+
+        binding.setBackClickListener {
+            findNavController().popBackStack()
+        }
+        binding.back.visibility = if (resources.getBoolean(R.bool.isTablet)) View.INVISIBLE else View.VISIBLE
+
+        binding.setTitleClickListener {
+            binding.sipUri.visibility = if (!viewModel.oneToOneChatRoom ||
+                binding.sipUri.visibility == View.VISIBLE) View.GONE else View.VISIBLE
+        }
+
+        binding.setMenuClickListener {
+            showPopupMenu(chatRoom)
+        }
+
+        binding.setEditClickListener {
+            enterEditionMode()
+        }
+
+        binding.setSecurityIconClickListener {
+            showParticipantsDevices()
+        }
+
+        binding.setAttachFileClickListener {
+            if (PermissionHelper.get().hasReadExternalStorage() && PermissionHelper.get().hasCameraPermission()) {
+                pickFile()
+            } else {
+                Log.i("[Chat Room] Asking for READ_EXTERNAL_STORAGE and CAMERA permissions")
+                requestPermissions(arrayOf(android.Manifest.permission.READ_EXTERNAL_STORAGE, android.Manifest.permission.CAMERA), 0)
+            }
+        }
+
+        binding.setSendMessageClickListener {
+            chatSendingViewModel.sendMessage()
+            binding.message.text?.clear()
+        }
+
+        binding.setStartCallClickListener {
+            coreContext.startCall(viewModel.addressToCall)
+        }
+
+        sharedViewModel.filesToShare.observe(viewLifecycleOwner, Observer {
+            if (it.isNotEmpty()) {
+                for (path in it) {
+                    Log.i("[Chat Room] Found $path file to share")
+                    chatSendingViewModel.addAttachment(path)
+                }
+                sharedViewModel.filesToShare.value = arrayListOf()
+            }
+        })
+
+        sharedViewModel.messageToForwardEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatMessage ->
+                Log.i("[Chat Room] Found message to transfer")
+                showForwardConfirmationDialog(chatMessage)
+            }
+        })
+    }
+
+    override fun getItemCount(): Int {
+        return adapter.itemCount
+    }
+
+    override fun deleteItems(indexesOfItemToDelete: ArrayList<Int>) {
+        val list = ArrayList<EventLog>()
+        for (index in indexesOfItemToDelete) {
+            val eventLog = adapter.getItemAt(index)
+            list.add(eventLog)
+        }
+        listViewModel.deleteEventLogs(list)
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        if (requestCode == 0) {
+            var atLeastOneGranted = false
+            for (result in grantResults) {
+                atLeastOneGranted = atLeastOneGranted || result == PackageManager.PERMISSION_GRANTED
+            }
+            if (atLeastOneGranted) {
+                pickFile()
+            }
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        // Prevent notifications for this chat room to be displayed
+        coreContext.notificationsManager.currentlyDisplayedChatRoomAddress = chatRoomAddress
+        scrollToBottom()
+    }
+
+    override fun onPause() {
+        coreContext.notificationsManager.currentlyDisplayedChatRoomAddress = null
+
+        super.onPause()
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        if (resultCode == Activity.RESULT_OK) {
+            var fileToUploadPath: String? = null
+
+            val temporaryFileUploadPath = chatSendingViewModel.temporaryFileUploadPath
+            if (temporaryFileUploadPath != null) {
+                if (data != null) {
+                    val dataUri = data.data
+                    if (dataUri != null) {
+                        fileToUploadPath = dataUri.toString()
+                        Log.i("[Chat Room] Using data URI $fileToUploadPath")
+                    } else if (temporaryFileUploadPath.exists()) {
+                        fileToUploadPath = temporaryFileUploadPath.absolutePath
+                        Log.i("[Chat Room] Data URI is null, using $fileToUploadPath")
+                    }
+                } else if (temporaryFileUploadPath.exists()) {
+                    fileToUploadPath = temporaryFileUploadPath.absolutePath
+                    Log.i("[Chat Room] Data is null, using $fileToUploadPath")
+                }
+            }
+
+            if (fileToUploadPath != null) {
+                if (fileToUploadPath.startsWith("content://") ||
+                    fileToUploadPath.startsWith("file://")
+                ) {
+                    val uriToParse = Uri.parse(fileToUploadPath)
+                    fileToUploadPath = FileUtils.getFilePath(requireContext(), uriToParse)
+                    Log.i("[Chat] Path was using a content or file scheme, real path is: $fileToUploadPath")
+                    if (fileToUploadPath == null) {
+                        Log.e("[Chat] Failed to get access to file $uriToParse")
+                    }
+                }
+            }
+
+            if (fileToUploadPath != null) {
+                chatSendingViewModel.addAttachment(fileToUploadPath)
+            }
+        }
+    }
+
+    private fun enterEditionMode() {
+        listSelectionViewModel.isEditionEnabled.value = true
+    }
+
+    private fun showParticipantsDevices() {
+        if (corePreferences.limeSecurityPopupEnabled) {
+            val dialogViewModel = DialogViewModel(getString(R.string.dialog_lime_security_message))
+            dialogViewModel.showDoNotAskAgain = true
+            val dialog = DialogUtils.getDialog(requireContext(), dialogViewModel)
+
+            dialogViewModel.showCancelButton { doNotAskAgain ->
+                if (doNotAskAgain) corePreferences.limeSecurityPopupEnabled = false
+                dialog.dismiss()
+            }
+
+            val okLabel = if (viewModel.oneParticipantOneDevice) getString(R.string.dialog_call) else getString(R.string.dialog_ok)
+            dialogViewModel.showOkButton({ doNotAskAgain ->
+                if (doNotAskAgain) corePreferences.limeSecurityPopupEnabled = false
+
+                if (viewModel.oneParticipantOneDevice) {
+                    coreContext.startCall(viewModel.onlyParticipantOnlyDeviceAddress, true)
+                } else {
+                    if (findNavController().currentDestination?.id == R.id.detailChatRoomFragment) {
+                        findNavController().navigate(R.id.action_detailChatRoomFragment_to_devicesFragment)
+                    }
+                }
+
+                dialog.dismiss()
+            }, okLabel)
+
+            dialog.show()
+        } else {
+            if (viewModel.oneParticipantOneDevice) {
+                coreContext.startCall(viewModel.onlyParticipantOnlyDeviceAddress, true)
+            } else {
+                if (findNavController().currentDestination?.id == R.id.detailChatRoomFragment) {
+                    findNavController().navigate(R.id.action_detailChatRoomFragment_to_devicesFragment)
+                }
+            }
+        }
+    }
+
+    private fun showGroupInfo(chatRoom: ChatRoom) {
+        sharedViewModel.selectedGroupChatRoom.value = chatRoom
+        if (findNavController().currentDestination?.id == R.id.detailChatRoomFragment) {
+            findNavController().navigate(R.id.action_detailChatRoomFragment_to_groupInfoFragment)
+        }
+    }
+
+    private fun showEphemeralMessages() {
+        if (findNavController().currentDestination?.id == R.id.detailChatRoomFragment) {
+            findNavController().navigate(R.id.action_detailChatRoomFragment_to_ephemeralFragment)
+        }
+    }
+
+    private fun showForwardConfirmationDialog(chatMessage: ChatMessage) {
+        val viewModel = DialogViewModel(getString(R.string.chat_message_forward_confirmation_dialog))
+        viewModel.iconResource = R.drawable.forward_message_dialog_default
+        viewModel.showIcon = true
+        val dialog: Dialog = DialogUtils.getDialog(requireContext(), viewModel)
+
+        viewModel.showCancelButton {
+            Log.i("[Chat Room] Transfer cancelled")
+            dialog.dismiss()
+        }
+
+        viewModel.showOkButton({
+            Log.i("[Chat Room] Transfer confirmed")
+            chatSendingViewModel.transferMessage(chatMessage)
+            dialog.dismiss()
+        }, getString(R.string.chat_message_context_menu_forward))
+
+        dialog.show()
+    }
+
+    private fun showPopupMenu(chatRoom: ChatRoom) {
+        val builder = MenuBuilder(requireContext())
+        val popupMenu = MenuPopupHelper(requireContext(), builder, binding.menu)
+        popupMenu.setForceShowIcon(true)
+
+        MenuInflater(requireContext()).inflate(R.menu.chat_room_menu, builder)
+        if (viewModel.oneToOneChatRoom) {
+            builder.removeItem(R.id.chat_room_group_info)
+
+            // If one participant one device, a click on security badge
+            // will directly start a call or show the dialog, so don't show this menu
+            if (viewModel.oneParticipantOneDevice) {
+                builder.removeItem(R.id.chat_room_participants_devices)
+            }
+        }
+        if (!viewModel.encryptedChatRoom) {
+            builder.removeItem(R.id.chat_room_participants_devices)
+            builder.removeItem(R.id.chat_room_ephemeral_messages)
+        }
+        // TODO: hide ephemeral menu if not all participants support the feature
+
+        builder.setCallback(object : MenuBuilder.Callback {
+            override fun onMenuModeChange(menu: MenuBuilder?) {}
+
+            override fun onMenuItemSelected(menu: MenuBuilder, item: MenuItem): Boolean {
+                return when (item.itemId) {
+                    R.id.chat_room_group_info -> {
+                        showGroupInfo(chatRoom)
+                        true
+                    }
+                    R.id.chat_room_participants_devices -> {
+                        showParticipantsDevices()
+                        true
+                    }
+                    R.id.chat_room_ephemeral_messages -> {
+                        showEphemeralMessages()
+                        true
+                    }
+                    R.id.chat_room_delete_messages -> {
+                        enterEditionMode()
+                        true
+                    }
+                    else -> false
+                }
+            }
+        })
+
+        popupMenu.show()
+    }
+
+    private fun scrollToBottom() {
+        if (adapter.itemCount > 0) {
+            binding.chatMessagesList.scrollToPosition(adapter.itemCount - 1)
+        }
+    }
+
+    private fun pickFile() {
+        val cameraIntents = ArrayList<Intent>()
+
+        // Handles image & video picking
+        val galleryIntent = Intent(Intent.ACTION_PICK)
+        galleryIntent.type = "*/*"
+        galleryIntent.putExtra(Intent.EXTRA_MIME_TYPES, arrayOf("image/*", "video/*"))
+
+        if (PermissionHelper.get().hasCameraPermission()) {
+            // Allows to capture directly from the camera
+            val captureIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
+            val tempFileName = System.currentTimeMillis().toString() + ".jpeg"
+            chatSendingViewModel.temporaryFileUploadPath =
+                FileUtils.getFileStoragePath(tempFileName)
+            val uri = Uri.fromFile(chatSendingViewModel.temporaryFileUploadPath)
+            captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, uri)
+            cameraIntents.add(captureIntent)
+        }
+
+        if (PermissionHelper.get().hasReadExternalStorage()) {
+            // Finally allow any kind of file
+            val fileIntent = Intent(Intent.ACTION_GET_CONTENT)
+            fileIntent.type = "*/*"
+            cameraIntents.add(fileIntent)
+        }
+
+        val chooserIntent =
+            Intent.createChooser(galleryIntent, getString(R.string.chat_message_pick_file_dialog))
+        chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(arrayOf<Parcelable>()))
+
+        startActivityForResult(chooserIntent, 0)
+    }
+
+    private fun openFile(contentFilePath: String) {
+        val intent = Intent(Intent.ACTION_VIEW)
+        val contentUri: Uri
+        var path = contentFilePath
+
+        when {
+            path.startsWith("file://") -> {
+                path = path.substring("file://".length)
+                val file = File(path)
+                contentUri = FileProvider.getUriForFile(
+                    requireContext(),
+                    getString(R.string.file_provider),
+                    file
+                )
+            }
+            path.startsWith("content://") -> {
+                contentUri = Uri.parse(path)
+            }
+            else -> {
+                val file = File(path)
+                contentUri = try {
+                    FileProvider.getUriForFile(
+                        requireContext(),
+                        getString(R.string.file_provider),
+                        file
+                    )
+                } catch (e: Exception) {
+                    Log.e(
+                        "[Chat Message] Couldn't get URI for file $file using file provider ${getString(R.string.file_provider)}"
+                    )
+                    Uri.parse(path)
+                }
+            }
+        }
+
+        val filePath: String = contentUri.toString()
+        Log.i("[Chat Message] Trying to open file: $filePath")
+        var type: String? = null
+        val extension = FileUtils.getExtensionFromFileName(filePath)
+
+        if (extension.isNotEmpty()) {
+            Log.i("[Chat Message] Found extension $extension")
+            type = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension)
+        } else {
+            Log.e("[Chat Message] Couldn't find extension")
+        }
+
+        if (type != null) {
+            Log.i("[Chat Message] Found matching MIME type $type")
+        } else {
+            type = FileUtils.getMimeFromFile(filePath)
+            Log.e("[Chat Message] Can't get MIME type from extension: $extension, will use $type")
+        }
+
+        intent.setDataAndType(contentUri, type)
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+
+        try {
+            startActivity(intent)
+        } catch (anfe: ActivityNotFoundException) {
+            Log.e("[Chat Message] Couldn't find an activity to handle MIME type: $type")
+            val activity = requireActivity() as MainActivity
+            activity.showSnackBar(R.string.chat_room_cant_open_file_no_app_found)
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/DevicesFragment.kt

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.activities.main.chat.viewmodels.DevicesListViewModel
+import org.linphone.activities.main.chat.viewmodels.DevicesListViewModelFactory
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.databinding.ChatRoomDevicesFragmentBinding
+
+class DevicesFragment : Fragment() {
+    private lateinit var binding: ChatRoomDevicesFragmentBinding
+    private lateinit var listViewModel: DevicesListViewModel
+    private lateinit var sharedViewModel: SharedMainViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomDevicesFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val chatRoom = sharedViewModel.selectedChatRoom.value
+        chatRoom ?: return
+
+        listViewModel = ViewModelProvider(
+            this,
+            DevicesListViewModelFactory(chatRoom)
+        )[DevicesListViewModel::class.java]
+        binding.viewModel = listViewModel
+
+        binding.setBackClickListener {
+            findNavController().popBackStack()
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/EphemeralFragment.kt

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import org.linphone.activities.main.chat.viewmodels.EphemeralViewModel
+import org.linphone.activities.main.chat.viewmodels.EphemeralViewModelFactory
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.databinding.ChatRoomEphemeralFragmentBinding
+
+class EphemeralFragment : Fragment() {
+    private lateinit var binding: ChatRoomEphemeralFragmentBinding
+    private lateinit var viewModel: EphemeralViewModel
+    private lateinit var sharedViewModel: SharedMainViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomEphemeralFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val chatRoom = sharedViewModel.selectedChatRoom.value
+        chatRoom ?: return
+
+        viewModel = ViewModelProvider(
+            this,
+            EphemeralViewModelFactory(chatRoom)
+        )[EphemeralViewModel::class.java]
+        binding.viewModel = viewModel
+
+        binding.setBackClickListener {
+            findNavController().popBackStack()
+        }
+
+        binding.setValidClickListener {
+            viewModel.updateChatRoomEphemeralDuration()
+            findNavController().popBackStack()
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/GroupInfoFragment.kt

@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.app.Dialog
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import org.linphone.R
+import org.linphone.activities.main.MainActivity
+import org.linphone.activities.main.chat.GroupChatRoomMember
+import org.linphone.activities.main.chat.adapters.GroupInfoParticipantsAdapter
+import org.linphone.activities.main.chat.viewmodels.GroupInfoViewModel
+import org.linphone.activities.main.chat.viewmodels.GroupInfoViewModelFactory
+import org.linphone.activities.main.viewmodels.DialogViewModel
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.core.Address
+import org.linphone.core.ChatRoom
+import org.linphone.core.ChatRoomCapabilities
+import org.linphone.databinding.ChatRoomGroupInfoFragmentBinding
+import org.linphone.utils.DialogUtils
+
+class GroupInfoFragment : Fragment() {
+    private lateinit var binding: ChatRoomGroupInfoFragmentBinding
+    private lateinit var viewModel: GroupInfoViewModel
+    private lateinit var sharedViewModel: SharedMainViewModel
+    private lateinit var adapter: GroupInfoParticipantsAdapter
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomGroupInfoFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val chatRoom: ChatRoom? = sharedViewModel.selectedGroupChatRoom.value
+
+        viewModel = ViewModelProvider(
+            this,
+            GroupInfoViewModelFactory(chatRoom)
+        )[GroupInfoViewModel::class.java]
+        binding.viewModel = viewModel
+
+        viewModel.isEncrypted.value = sharedViewModel.createEncryptedChatRoom
+
+        adapter = GroupInfoParticipantsAdapter(chatRoom?.hasCapability(ChatRoomCapabilities.Encrypted.toInt()) ?: viewModel.isEncrypted.value == true)
+        binding.participants.adapter = adapter
+
+        val layoutManager = LinearLayoutManager(activity)
+        binding.participants.layoutManager = layoutManager
+
+        // Divider between items
+        val dividerItemDecoration = DividerItemDecoration(context, layoutManager.orientation)
+        dividerItemDecoration.setDrawable(resources.getDrawable(R.drawable.divider, null))
+        binding.participants.addItemDecoration(dividerItemDecoration)
+
+        viewModel.participants.observe(viewLifecycleOwner, Observer {
+            adapter.submitList(it)
+        })
+
+        viewModel.isMeAdmin.observe(viewLifecycleOwner, Observer {
+            adapter.showAdminControls(it && chatRoom != null)
+        })
+
+        adapter.participantRemovedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { participant ->
+                viewModel.removeParticipant(participant)
+            }
+        })
+
+        addParticipantsFromBundle()
+
+        binding.setBackClickListener {
+            findNavController().popBackStack()
+        }
+
+        viewModel.createdChatRoomEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatRoom ->
+                sharedViewModel.selectedChatRoom.value = chatRoom
+                goToChatRoom()
+            }
+        })
+
+        binding.setNextClickListener {
+            if (viewModel.chatRoom != null) {
+                viewModel.updateRoom()
+            } else {
+                viewModel.createChatRoom()
+            }
+        }
+
+        binding.setParticipantsClickListener {
+            sharedViewModel.createEncryptedChatRoom = viewModel.isEncrypted.value == true
+
+            if (findNavController().currentDestination?.id == R.id.groupInfoFragment) {
+                val args = Bundle()
+                args.putBoolean("createGroup", true)
+
+                val list = arrayListOf<Address>()
+                for (participant in viewModel.participants.value.orEmpty()) {
+                    list.add(participant.address)
+                }
+                args.putSerializable("participants", list)
+
+                findNavController().navigate(R.id.action_groupInfoFragment_to_chatRoomCreationFragment, args)
+            }
+        }
+
+        binding.setLeaveClickListener {
+            val dialogViewModel = DialogViewModel(getString(R.string.chat_room_group_info_leave_dialog_message))
+            val dialog: Dialog = DialogUtils.getDialog(requireContext(), dialogViewModel)
+
+            dialogViewModel.showDeleteButton({
+                viewModel.leaveGroup()
+                dialog.dismiss()
+            }, getString(R.string.chat_room_group_info_leave_dialog_button))
+
+            dialogViewModel.showCancelButton {
+                dialog.dismiss()
+            }
+
+            dialog.show()
+        }
+
+        viewModel.onErrorEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { messageResourceId ->
+                (activity as MainActivity).showSnackBar(messageResourceId)
+            }
+        })
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    private fun addParticipantsFromBundle() {
+        val participants = arguments?.getSerializable("participants") as? ArrayList<Address>
+        if (participants != null && participants.size > 0) {
+            val list = arrayListOf<GroupChatRoomMember>()
+
+            for (address in participants) {
+                val exists = viewModel.participants.value?.find {
+                    it.address.weakEqual(address)
+                }
+
+                if (exists != null) {
+                    list.add(exists)
+                } else {
+                    list.add(GroupChatRoomMember(address, false, hasLimeX3DHCapability = viewModel.isEncrypted.value == true))
+                }
+            }
+
+            viewModel.participants.value = list
+        }
+    }
+
+    private fun goToChatRoom() {
+        if (findNavController().currentDestination?.id == R.id.groupInfoFragment) {
+            findNavController().navigate(R.id.action_groupInfoFragment_to_detailChatRoomFragment)
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/ImdnFragment.kt

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import org.linphone.R
+import org.linphone.activities.main.chat.adapters.ImdnAdapter
+import org.linphone.activities.main.chat.viewmodels.ImdnViewModel
+import org.linphone.activities.main.chat.viewmodels.ImdnViewModelFactory
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.core.tools.Log
+import org.linphone.databinding.ChatRoomImdnFragmentBinding
+import org.linphone.utils.RecyclerViewHeaderDecoration
+
+class ImdnFragment : Fragment() {
+    private lateinit var binding: ChatRoomImdnFragmentBinding
+    private lateinit var viewModel: ImdnViewModel
+    private lateinit var adapter: ImdnAdapter
+    private lateinit var sharedViewModel: SharedMainViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomImdnFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        val chatRoom = sharedViewModel.selectedChatRoom.value
+        chatRoom ?: return
+
+        if (arguments != null) {
+            val messageId = arguments?.getString("MessageId")
+            val message = chatRoom.findMessage(messageId)
+            if (message != null) {
+                Log.i("[IMDN] Found message $message with id $messageId")
+                viewModel = ViewModelProvider(
+                    this,
+                    ImdnViewModelFactory(message)
+                )[ImdnViewModel::class.java]
+                binding.viewModel = viewModel
+            } else {
+                Log.e("[IMDN] Couldn't find message with id $messageId in chat room $chatRoom")
+                findNavController().popBackStack()
+                return
+            }
+        } else {
+            Log.e("[IMDN] Couldn't find message id in intent arguments")
+            findNavController().popBackStack()
+            return
+        }
+
+        adapter = ImdnAdapter()
+        binding.participantsList.adapter = adapter
+
+        val layoutManager = LinearLayoutManager(activity)
+        binding.participantsList.layoutManager = layoutManager
+
+        // Divider between items
+        val dividerItemDecoration = DividerItemDecoration(context, layoutManager.orientation)
+        dividerItemDecoration.setDrawable(resources.getDrawable(R.drawable.divider, null))
+        binding.participantsList.addItemDecoration(dividerItemDecoration)
+
+        // Displays state header
+        val headerItemDecoration = RecyclerViewHeaderDecoration(adapter)
+        binding.participantsList.addItemDecoration(headerItemDecoration)
+
+        viewModel.participants.observe(viewLifecycleOwner, Observer {
+            adapter.submitList(it)
+        })
+
+        binding.setBackClickListener {
+            findNavController().popBackStack()
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/fragments/MasterChatRoomsFragment.kt

@@ -0,0 +1,250 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.fragments
+
+import android.app.Dialog
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.content.ContextCompat
+import androidx.core.os.bundleOf
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.ItemTouchHelper
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.MainActivity
+import org.linphone.activities.main.chat.adapters.ChatRoomsListAdapter
+import org.linphone.activities.main.chat.viewmodels.ChatRoomsListViewModel
+import org.linphone.activities.main.fragments.MasterFragment
+import org.linphone.activities.main.viewmodels.DialogViewModel
+import org.linphone.activities.main.viewmodels.SharedMainViewModel
+import org.linphone.core.ChatRoom
+import org.linphone.core.Factory
+import org.linphone.core.tools.Log
+import org.linphone.databinding.ChatRoomMasterFragmentBinding
+import org.linphone.utils.*
+
+class MasterChatRoomsFragment : MasterFragment() {
+    private lateinit var binding: ChatRoomMasterFragmentBinding
+    private lateinit var listViewModel: ChatRoomsListViewModel
+    private lateinit var adapter: ChatRoomsListAdapter
+    private lateinit var sharedViewModel: SharedMainViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = ChatRoomMasterFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        binding.lifecycleOwner = this
+
+        listViewModel = ViewModelProvider(this).get(ChatRoomsListViewModel::class.java)
+        binding.viewModel = listViewModel
+
+        sharedViewModel = activity?.run {
+            ViewModelProvider(this).get(SharedMainViewModel::class.java)
+        } ?: throw Exception("Invalid Activity")
+
+        adapter = ChatRoomsListAdapter(listSelectionViewModel)
+        // SubmitList is done on a background thread
+        // We need this adapter data observer to know when to scroll
+        adapter.registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
+            override fun onChanged() {
+                scrollToTop()
+            }
+            override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
+                scrollToTop()
+            }
+            override fun onItemRangeMoved(fromPosition: Int, toPosition: Int, itemCount: Int) {
+                scrollToTop()
+            }
+        })
+        binding.chatList.adapter = adapter
+
+        val layoutManager = LinearLayoutManager(activity)
+        binding.chatList.layoutManager = layoutManager
+
+        val swipeConfiguration = RecyclerViewSwipeConfiguration()
+        val white = ContextCompat.getColor(requireContext(), R.color.white_color)
+
+        swipeConfiguration.rightToLeftAction = RecyclerViewSwipeConfiguration.Action("Delete", white, ContextCompat.getColor(requireContext(), R.color.red_color))
+        val swipeListener = object : RecyclerViewSwipeListener {
+            override fun onLeftToRightSwipe(viewHolder: RecyclerView.ViewHolder) {}
+
+            override fun onRightToLeftSwipe(viewHolder: RecyclerView.ViewHolder) {
+                val viewModel = DialogViewModel(getString(R.string.dialog_default_delete_message))
+                val dialog: Dialog = DialogUtils.getDialog(requireContext(), viewModel)
+
+                viewModel.showCancelButton {
+                    adapter.notifyItemChanged(viewHolder.adapterPosition)
+                    dialog.dismiss()
+                }
+
+                viewModel.showDeleteButton({
+                    listViewModel.deleteChatRoom(listViewModel.chatRooms.value?.get(viewHolder.adapterPosition))
+                    dialog.dismiss()
+                }, getString(R.string.dialog_delete))
+
+                dialog.show()
+            }
+        }
+        RecyclerViewSwipeUtils(ItemTouchHelper.LEFT, swipeConfiguration, swipeListener)
+            .attachToRecyclerView(binding.chatList)
+
+        // Divider between items
+        val dividerItemDecoration = DividerItemDecoration(context, layoutManager.orientation)
+        dividerItemDecoration.setDrawable(resources.getDrawable(R.drawable.divider, null))
+        binding.chatList.addItemDecoration(dividerItemDecoration)
+
+        listViewModel.chatRooms.observe(viewLifecycleOwner, Observer { chatRooms ->
+            adapter.submitList(chatRooms)
+        })
+
+        listViewModel.latestUpdatedChatRoomId.observe(viewLifecycleOwner, Observer { position ->
+            adapter.notifyItemChanged(position)
+        })
+
+        listViewModel.contactsUpdatedEvent.observe(viewLifecycleOwner, Observer {
+            it.consume {
+                adapter.notifyDataSetChanged()
+            }
+        })
+
+        adapter.selectedChatRoomEvent.observe(viewLifecycleOwner, Observer {
+            it.consume { chatRoom ->
+                sharedViewModel.selectedChatRoom.value = chatRoom
+                if (!resources.getBoolean(R.bool.isTablet)) {
+                    if (findNavController().currentDestination?.id == R.id.masterChatRoomsFragment) {
+                        findNavController().navigate(R.id.action_masterChatRoomsFragment_to_detailChatRoomFragment)
+                    }
+                } else {
+                    val navHostFragment =
+                        childFragmentManager.findFragmentById(R.id.chat_nav_container) as NavHostFragment
+                    navHostFragment.navController.navigate(R.id.action_global_detailChatRoomFragment)
+                }
+            }
+        })
+
+        binding.setEditClickListener {
+            listSelectionViewModel.isEditionEnabled.value = true
+        }
+
+        binding.setNewOneToOneChatRoomClickListener {
+            val bundle = bundleOf("createGroup" to false)
+            if (!resources.getBoolean(R.bool.isTablet)) {
+                if (findNavController().currentDestination?.id == R.id.masterChatRoomsFragment) {
+                    findNavController().navigate(
+                        R.id.action_masterChatRoomsFragment_to_chatRoomCreationFragment,
+                        bundle
+                    )
+                }
+            } else {
+                val navHostFragment =
+                    childFragmentManager.findFragmentById(R.id.chat_nav_container) as NavHostFragment
+                navHostFragment.navController.navigate(R.id.action_global_chatRoomCreationFragment, bundle)
+            }
+        }
+
+        binding.setNewGroupChatRoomClickListener {
+            sharedViewModel.selectedGroupChatRoom.value = null
+
+            val bundle = bundleOf("createGroup" to true)
+            if (!resources.getBoolean(R.bool.isTablet)) {
+                if (findNavController().currentDestination?.id == R.id.masterChatRoomsFragment) {
+                    findNavController().navigate(
+                        R.id.action_masterChatRoomsFragment_to_chatRoomCreationFragment,
+                        bundle
+                    )
+                }
+            } else {
+                val navHostFragment =
+                    childFragmentManager.findFragmentById(R.id.chat_nav_container) as NavHostFragment
+                navHostFragment.navController.navigate(R.id.action_global_chatRoomCreationFragment, bundle)
+            }
+        }
+
+        val localSipUri = arguments?.getString("LocalSipUri")
+        val remoteSipUri = arguments?.getString("RemoteSipUri")
+        if (localSipUri != null && remoteSipUri != null) {
+            Log.i("[Chat] Found local ($localSipUri) & remote addresses ($remoteSipUri) in arguments")
+            arguments?.clear()
+            val localAddress = Factory.instance().createAddress(localSipUri)
+            val remoteSipAddress = Factory.instance().createAddress(remoteSipUri)
+            val chatRoom = coreContext.core.getChatRoom(remoteSipAddress, localAddress)
+            if (chatRoom != null) {
+                Log.i("[Chat] Found matching chat room $chatRoom")
+                chatRoom.markAsRead()
+                adapter.selectedChatRoomEvent.value = Event(chatRoom)
+            }
+        } else {
+            sharedViewModel.filesToShare.observe(viewLifecycleOwner, Observer {
+                if (it.isNotEmpty()) {
+                    Log.i("[Chat] Found ${it.size} files to share")
+                    val activity = requireActivity() as MainActivity
+                    activity.showSnackBar(R.string.chat_room_toast_choose_for_sharing)
+                }
+            })
+            sharedViewModel.messageToForwardEvent.observe(viewLifecycleOwner, Observer {
+                if (!it.consumed()) {
+                    Log.i("[Chat] Found chat message to transfer")
+
+                    val activity = requireActivity() as MainActivity
+                    activity.showSnackBar(R.string.chat_room_toast_choose_for_sharing)
+                }
+            })
+
+            listViewModel.onErrorEvent.observe(viewLifecycleOwner, Observer {
+                it.consume { messageResourceId ->
+                    (activity as MainActivity).showSnackBar(messageResourceId)
+                }
+            })
+        }
+    }
+
+    override fun getItemCount(): Int {
+        return adapter.itemCount
+    }
+
+    override fun deleteItems(indexesOfItemToDelete: ArrayList<Int>) {
+        val list = ArrayList<ChatRoom>()
+        for (index in indexesOfItemToDelete) {
+            val chatRoom = adapter.getItemAt(index)
+            list.add(chatRoom)
+        }
+        listViewModel.deleteChatRooms(list)
+    }
+
+    private fun scrollToTop() {
+        binding.chatList.scrollToPosition(0)
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatMessageAttachmentViewModel.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
  *
  * This file is part of linphone-android
  * (see https://www.linphone.org).
@@ -17,19 +17,19 @@
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-package org.linphone.chat;
+package org.linphone.activities.main.chat.viewmodels
 
-import android.view.View;
+import androidx.lifecycle.ViewModel
-import android.widget.ImageView;
+import org.linphone.utils.FileUtils
-import android.widget.TextView;
-import org.linphone.R;
 
-class DeviceChildViewHolder {
+class ChatMessageAttachmentViewModel(
-    public final TextView deviceName;
+    val path: String,
-    public final ImageView securityLevel;
+    val isImage: Boolean,
+    private val deleteCallback: (attachment: ChatMessageAttachmentViewModel) -> Unit
+) : ViewModel() {
+    val fileName: String = FileUtils.getNameFromFilePath(path)
 
-    public DeviceChildViewHolder(View v) {
+    fun delete() {
-        deviceName = v.findViewById(R.id.name);
+        deleteCallback(this)
-        securityLevel = v.findViewById(R.id.security_level);
     }
 }

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatMessageContentViewModel.kt

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.core.ChatMessage
+import org.linphone.core.Content
+import org.linphone.core.tools.Log
+import org.linphone.utils.FileUtils
+
+class ChatMessageContentViewModel(
+    val content: Content,
+    private val chatMessage: ChatMessage,
+    private val listener: OnContentClickedListener?
+) : ViewModel() {
+    val isImage = MutableLiveData<Boolean>()
+
+    val downloadable = MutableLiveData<Boolean>()
+
+    val downloadEnabled = MutableLiveData<Boolean>()
+
+    val isAlone: Boolean
+        get() {
+            var count = 0
+            for (content in chatMessage.contents) {
+                if (content.isFileTransfer || content.isFile) {
+                    count += 1
+                }
+            }
+            return count == 1
+        }
+
+    init {
+        if (content.isFile || (content.isFileTransfer && chatMessage.isOutgoing)) {
+            downloadable.value = content.filePath.isEmpty()
+
+            if (content.filePath.isNotEmpty()) {
+                Log.i("[Content] Found displayable content: ${content.filePath}")
+                isImage.value = FileUtils.isExtensionImage(content.filePath)
+            } else {
+                Log.w("[Content] Found content with empty path...")
+                isImage.value = false
+            }
+        } else {
+            Log.i("[Content] Found downloadable content: ${content.name}")
+            downloadable.value = true
+            isImage.value = false
+        }
+
+        downloadEnabled.value = downloadable.value
+    }
+
+    fun download() {
+        if (content.isFileTransfer && (content.filePath == null || content.filePath.isEmpty())) {
+            val file = FileUtils.getFileStoragePath(content.name)
+            content.filePath = file.path
+            downloadEnabled.value = false
+
+            Log.i("[Content] Started downloading ${content.name} into ${content.filePath}")
+            chatMessage.downloadContent(content)
+        }
+    }
+
+    fun openFile() {
+        listener?.onContentClicked(content.filePath)
+    }
+}
+
+interface OnContentClickedListener {
+    fun onContentClicked(path: String)
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatMessageSendingViewModel.kt

@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import java.io.File
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.core.*
+import org.linphone.utils.FileUtils
+
+class ChatMessageSendingViewModelFactory(private val chatRoom: ChatRoom) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return ChatMessageSendingViewModel(chatRoom) as T
+    }
+}
+
+class ChatMessageSendingViewModel(private val chatRoom: ChatRoom) : ViewModel() {
+    var temporaryFileUploadPath: File? = null
+
+    val attachments = MutableLiveData<ArrayList<ChatMessageAttachmentViewModel>>()
+
+    val attachFileEnabled = MutableLiveData<Boolean>()
+
+    val sendMessageEnabled = MutableLiveData<Boolean>()
+
+    val isReadOnly = MutableLiveData<Boolean>()
+
+    var textToSend: String = ""
+        set(value) {
+            sendMessageEnabled.value = value.isNotEmpty() || attachments.value?.isNotEmpty() ?: false
+            if (value.isNotEmpty()) {
+                if (!corePreferences.allowMultipleFilesAndTextInSameMessage) {
+                    attachFileEnabled.value = false
+                }
+                chatRoom.compose()
+            } else {
+                if (!corePreferences.allowMultipleFilesAndTextInSameMessage) {
+                    attachFileEnabled.value = attachments.value?.isEmpty() ?: true
+                }
+            }
+            field = value
+        }
+
+    init {
+        attachments.value = arrayListOf()
+
+        attachFileEnabled.value = true
+        sendMessageEnabled.value = false
+        isReadOnly.value = chatRoom.hasBeenLeft()
+    }
+
+    fun addAttachment(path: String) {
+        val list = arrayListOf<ChatMessageAttachmentViewModel>()
+        list.addAll(attachments.value.orEmpty())
+        list.add(ChatMessageAttachmentViewModel(path, FileUtils.isExtensionImage(path)) {
+            removeAttachment(it)
+        })
+        attachments.value = list
+
+        sendMessageEnabled.value = textToSend.isNotEmpty() || list.isNotEmpty()
+        if (!corePreferences.allowMultipleFilesAndTextInSameMessage) {
+            attachFileEnabled.value = false
+        }
+    }
+
+    private fun removeAttachment(attachment: ChatMessageAttachmentViewModel) {
+        val list = arrayListOf<ChatMessageAttachmentViewModel>()
+        list.addAll(attachments.value.orEmpty())
+        list.remove(attachment)
+        attachments.value = list
+
+        sendMessageEnabled.value = textToSend.isNotEmpty() || list.isNotEmpty()
+        if (!corePreferences.allowMultipleFilesAndTextInSameMessage) {
+            attachFileEnabled.value = list.isEmpty()
+        }
+    }
+
+    fun sendMessage() {
+        val isBasicChatRoom: Boolean = chatRoom.hasCapability(ChatRoomCapabilities.Basic.toInt())
+        val message: ChatMessage = chatRoom.createEmptyMessage()
+
+        if (textToSend.isNotEmpty()) {
+            message.addTextContent(textToSend)
+        }
+
+        for (attachment in attachments.value.orEmpty()) {
+            val content = Factory.instance().createContent()
+
+            if (attachment.isImage) {
+                content.type = "image"
+            } else {
+                content.type = "file"
+            }
+            content.subtype = FileUtils.getExtensionFromFileName(attachment.fileName)
+            content.name = attachment.fileName
+            content.filePath = attachment.path // Let the file body handler take care of the upload
+
+            if (isBasicChatRoom) {
+                val fileMessage: ChatMessage = chatRoom.createFileTransferMessage(content)
+                fileMessage.send()
+            } else {
+                message.addFileContent(content)
+            }
+        }
+
+        if (message.contents.isNotEmpty()) {
+            message.send()
+        }
+
+        attachments.value = arrayListOf()
+    }
+
+    fun transferMessage(chatMessage: ChatMessage) {
+        val message = chatRoom.createForwardMessage(chatMessage)
+        message?.send()
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatMessageViewModel.kt

@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import android.os.CountDownTimer
+import android.text.Spanned
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.LinphoneApplication.Companion.corePreferences
+import org.linphone.R
+import org.linphone.compatibility.Compatibility
+import org.linphone.contact.GenericContactViewModel
+import org.linphone.core.ChatMessage
+import org.linphone.core.ChatMessageListenerStub
+import org.linphone.core.Content
+import org.linphone.core.tools.Log
+import org.linphone.mediastream.Version
+import org.linphone.utils.AppUtils
+import org.linphone.utils.PermissionHelper
+import org.linphone.utils.TimestampUtils
+
+class ChatMessageViewModel(
+    val chatMessage: ChatMessage,
+    private val contentListener: OnContentClickedListener? = null
+) : GenericContactViewModel(chatMessage.fromAddress) {
+    val sendInProgress = MutableLiveData<Boolean>()
+
+    val transferInProgress = MutableLiveData<Boolean>()
+
+    val showImdn = MutableLiveData<Boolean>()
+
+    val imdnIcon = MutableLiveData<Int>()
+
+    val backgroundRes = MutableLiveData<Int>()
+
+    val hideAvatar = MutableLiveData<Boolean>()
+
+    val hideTime = MutableLiveData<Boolean>()
+
+    val contents = MutableLiveData<ArrayList<ChatMessageContentViewModel>>()
+
+    val time = MutableLiveData<String>()
+
+    val ephemeralLifetime = MutableLiveData<String>()
+
+    val text: Spanned? by lazy {
+        if (chatMessage.textContent != null) AppUtils.getTextWithHttpLinks(chatMessage.textContent) else null
+    }
+
+    private var countDownTimer: CountDownTimer? = null
+
+    private val listener = object : ChatMessageListenerStub() {
+        override fun onMsgStateChanged(message: ChatMessage, state: ChatMessage.State) {
+            time.value = TimestampUtils.toString(chatMessage.time)
+            updateChatMessageState(state)
+
+            // TODO FIXME : find a way to refresh outgoing message downloaded
+            if (state == ChatMessage.State.FileTransferDone && !message.isOutgoing) {
+                Log.i("[Chat Message] File transfer done")
+                // No need to refresh content lists on outgoing messages after file transfer is done
+                // It will even cause the app to crash if updateContentsList is not call right after
+                updateContentsList()
+
+                if (!message.isEphemeral && corePreferences.makePublicDownloadedImages) {
+                    if (Version.sdkAboveOrEqual(Version.API29_ANDROID_10) || PermissionHelper.get().hasWriteExternalStorage()) {
+                        for (content in message.contents) {
+                            if (content.isFile && content.filePath != null && content.userData == null) {
+                                addContentToMediaStore(content)
+                            }
+                        }
+                    } else {
+                        Log.e("[Chat Message] Can't make file public, app doesn't have WRITE_EXTERNAL_STORAGE permission")
+                    }
+                }
+            }
+        }
+
+        override fun onEphemeralMessageTimerStarted(message: ChatMessage) {
+            updateEphemeralTimer()
+        }
+    }
+
+    init {
+        chatMessage.addListener(listener)
+
+        backgroundRes.value = if (chatMessage.isOutgoing) R.drawable.chat_bubble_outgoing_full else R.drawable.chat_bubble_incoming_full
+        hideAvatar.value = false
+        time.value = TimestampUtils.toString(chatMessage.time)
+        updateEphemeralTimer()
+
+        updateChatMessageState(chatMessage.state)
+        updateContentsList()
+    }
+
+    override fun onCleared() {
+        chatMessage.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun updateBubbleBackground(hasPrevious: Boolean, hasNext: Boolean) {
+        if (hasPrevious) {
+            hideTime.value = true
+        }
+
+        if (chatMessage.isOutgoing) {
+            if (hasNext && hasPrevious) {
+                backgroundRes.value = R.drawable.chat_bubble_outgoing_split_2
+            } else if (hasNext) {
+                backgroundRes.value = R.drawable.chat_bubble_outgoing_split_1
+            } else if (hasPrevious) {
+                backgroundRes.value = R.drawable.chat_bubble_outgoing_split_3
+            } else {
+                backgroundRes.value = R.drawable.chat_bubble_outgoing_full
+            }
+        } else {
+            if (hasNext && hasPrevious) {
+                hideAvatar.value = true
+                backgroundRes.value = R.drawable.chat_bubble_incoming_split_2
+            } else if (hasNext) {
+                backgroundRes.value = R.drawable.chat_bubble_incoming_split_1
+            } else if (hasPrevious) {
+                hideAvatar.value = true
+                backgroundRes.value = R.drawable.chat_bubble_incoming_split_3
+            } else {
+                backgroundRes.value = R.drawable.chat_bubble_incoming_full
+            }
+        }
+    }
+
+    private fun updateChatMessageState(state: ChatMessage.State) {
+        transferInProgress.value = state == ChatMessage.State.FileTransferInProgress
+
+        sendInProgress.value = state == ChatMessage.State.InProgress || state == ChatMessage.State.FileTransferInProgress
+
+        showImdn.value = when (state) {
+            ChatMessage.State.DeliveredToUser, ChatMessage.State.Displayed, ChatMessage.State.NotDelivered -> true
+            else -> false
+        }
+
+        imdnIcon.value = when (state) {
+            ChatMessage.State.DeliveredToUser -> R.drawable.imdn_received
+            ChatMessage.State.Displayed -> R.drawable.imdn_read
+            else -> R.drawable.imdn_error
+        }
+    }
+
+    private fun updateContentsList() {
+        val list = arrayListOf<ChatMessageContentViewModel>()
+        for (content in chatMessage.contents) {
+            if (content.isFileTransfer || content.isFile) {
+                list.add(ChatMessageContentViewModel(content, chatMessage, contentListener))
+            }
+        }
+        contents.value = list
+    }
+
+    private fun updateEphemeralTimer() {
+        if (chatMessage.isEphemeral) {
+            if (chatMessage.ephemeralExpireTime == 0L) {
+                // This means the message hasn't been read by all participants yet, so the countdown hasn't started
+                // In this case we simply display the configured value for lifetime
+                ephemeralLifetime.value = formatLifetime(chatMessage.ephemeralLifetime)
+            } else {
+                // Countdown has started, display remaining time
+                val remaining = chatMessage.ephemeralExpireTime - (System.currentTimeMillis() / 1000)
+                ephemeralLifetime.value = formatLifetime(remaining)
+                if (countDownTimer == null) {
+                    countDownTimer = object : CountDownTimer(remaining * 1000, 1000) {
+                        override fun onFinish() {}
+
+                        override fun onTick(millisUntilFinished: Long) {
+                            ephemeralLifetime.postValue(formatLifetime(millisUntilFinished / 1000))
+                        }
+                    }
+                    countDownTimer?.start()
+                }
+            }
+        }
+    }
+
+    private fun formatLifetime(seconds: Long): String {
+        val days = seconds / 86400
+        return when {
+            days >= 1L -> AppUtils.getStringWithPlural(R.plurals.days, days.toInt())
+            else -> String.format("%02d:%02d:%02d", seconds / 3600, (seconds % 3600) / 60, (seconds % 60))
+        }
+    }
+
+    private fun addContentToMediaStore(content: Content) {
+        when (content.type) {
+            "image" -> {
+                if (Compatibility.addImageToMediaStore(coreContext.context, content)) {
+                    Log.i("[Chat Message] Adding image ${content.name} terminated")
+                } else {
+                    Log.e("[Chat Message] Something went wrong while copying file...")
+                }
+            }
+            "video" -> {
+                if (Compatibility.addVideoToMediaStore(coreContext.context, content)) {
+                    Log.i("[Chat Message] Adding video ${content.name} terminated")
+                } else {
+                    Log.e("[Chat Message] Something went wrong while copying file...")
+                }
+            }
+            "audio" -> {
+                if (Compatibility.addAudioToMediaStore(coreContext.context, content)) {
+                    Log.i("[Chat Message] Adding audio ${content.name} terminated")
+                } else {
+                    Log.e("[Chat Message] Something went wrong while copying file...")
+                }
+            }
+            else -> {
+                Log.w("[Chat Message] File ${content.name} isn't either an image, an audio file or a video, can't add it to the Media Store")
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatMessagesListViewModel.kt

@@ -0,0 +1,221 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import java.util.*
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+import org.linphone.mediastream.Version
+import org.linphone.utils.Event
+import org.linphone.utils.LinphoneUtils
+import org.linphone.utils.PermissionHelper
+
+class ChatMessagesListViewModelFactory(private val chatRoom: ChatRoom) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return ChatMessagesListViewModel(chatRoom) as T
+    }
+}
+
+class ChatMessagesListViewModel(private val chatRoom: ChatRoom) : ViewModel() {
+    companion object {
+        private const val MESSAGES_PER_PAGE = 20
+    }
+
+    val events = MutableLiveData<ArrayList<EventLog>>()
+
+    val messageUpdatedEvent: MutableLiveData<Event<Int>> by lazy {
+        MutableLiveData<Event<Int>>()
+    }
+
+    val requestWriteExternalStoragePermissionEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    private val chatMessageListener: ChatMessageListenerStub = object : ChatMessageListenerStub() {
+        override fun onMsgStateChanged(message: ChatMessage, state: ChatMessage.State) {
+            if (state == ChatMessage.State.Displayed) {
+                message.removeListener(this)
+            }
+
+            val position: Int? = message.userData as? Int?
+            if (position != null) {
+                messageUpdatedEvent.value = Event(position)
+            }
+        }
+    }
+
+    private val chatRoomListener: ChatRoomListenerStub = object : ChatRoomListenerStub() {
+        override fun onChatMessageReceived(chatRoom: ChatRoom, eventLog: EventLog) {
+            chatRoom.markAsRead()
+
+            val position = events.value?.size ?: 0
+
+            if (eventLog.type == EventLog.Type.ConferenceChatMessage) {
+                val chatMessage = eventLog.chatMessage
+                chatMessage.userData = position
+                chatMessage.addListener(chatMessageListener)
+
+                if (Version.sdkStrictlyBelow(Version.API29_ANDROID_10) && !PermissionHelper.get().hasWriteExternalStorage()) {
+                    for (content in chatMessage.contents) {
+                        if (content.isFileTransfer) {
+                            Log.i("[Chat Messages] Android < 10 detected and WRITE_EXTERNAL_STORAGE permission isn't granted yet")
+                            requestWriteExternalStoragePermissionEvent.value = Event(true)
+                        }
+                    }
+                }
+            }
+
+            addEvent(eventLog)
+        }
+
+        override fun onChatMessageSent(chatRoom: ChatRoom, eventLog: EventLog) {
+            val position = events.value?.size ?: 0
+
+            if (eventLog.type == EventLog.Type.ConferenceChatMessage) {
+                val chatMessage = eventLog.chatMessage
+                chatMessage.userData = position
+                chatMessage.addListener(chatMessageListener)
+            }
+
+            addEvent(eventLog)
+        }
+
+        override fun onSecurityEvent(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onParticipantAdded(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onParticipantRemoved(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onParticipantAdminStatusChanged(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onSubjectChanged(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onConferenceJoined(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onConferenceLeft(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+
+        override fun onEphemeralMessageDeleted(chatRoom: ChatRoom, eventLog: EventLog) {
+            Log.i("[Chat Messages] An ephemeral chat message has expired, removing it from event list")
+            deleteMessage(eventLog.chatMessage)
+        }
+
+        override fun onEphemeralEvent(chatRoom: ChatRoom, eventLog: EventLog) {
+            addEvent(eventLog)
+        }
+    }
+
+    init {
+        chatRoom.addListener(chatRoomListener)
+
+        events.value = getEvents()
+    }
+
+    override fun onCleared() {
+        chatRoom.removeListener(chatRoomListener)
+
+        super.onCleared()
+    }
+
+    fun resendMessage(chatMessage: ChatMessage) {
+        val position: Int = chatMessage.userData as Int
+        chatMessage.resend()
+        messageUpdatedEvent.value = Event(position)
+    }
+
+    fun deleteMessage(chatMessage: ChatMessage) {
+        val position: Int = chatMessage.userData as Int
+        LinphoneUtils.deleteFilesAttachedToChatMessage(chatMessage)
+        chatRoom.deleteMessage(chatMessage)
+
+        val list = arrayListOf<EventLog>()
+        list.addAll(events.value.orEmpty())
+        list.removeAt(position)
+        events.value = list
+    }
+
+    fun deleteEventLogs(listToDelete: ArrayList<EventLog>) {
+        val list = arrayListOf<EventLog>()
+        list.addAll(events.value.orEmpty())
+
+        for (eventLog in listToDelete) {
+            LinphoneUtils.deleteFilesAttachedToEventLog(eventLog)
+            eventLog.deleteFromDatabase()
+            list.remove(eventLog)
+        }
+
+        events.value = list
+    }
+
+    fun loadMoreData(totalItemsCount: Int) {
+        Log.i("[Chat Messages] Load more data, current total is $totalItemsCount")
+        val maxSize: Int = chatRoom.historyEventsSize
+
+        if (totalItemsCount < maxSize) {
+            var upperBound: Int = totalItemsCount + MESSAGES_PER_PAGE
+            if (upperBound > maxSize) {
+                upperBound = maxSize
+            }
+
+            val history: Array<EventLog> = chatRoom.getHistoryRangeEvents(totalItemsCount, upperBound)
+            val list = arrayListOf<EventLog>()
+            for (message in history) {
+                list.add(message)
+            }
+            list.addAll(events.value.orEmpty())
+            events.value = list
+        }
+    }
+
+    private fun addEvent(eventLog: EventLog) {
+        val list = arrayListOf<EventLog>()
+        list.addAll(events.value.orEmpty())
+        list.add(eventLog)
+        events.value = list
+    }
+
+    private fun getEvents(): ArrayList<EventLog> {
+        val list = arrayListOf<EventLog>()
+        val history = chatRoom.getHistoryEvents(MESSAGES_PER_PAGE)
+        for (message in history) {
+            list.add(message)
+        }
+        return list
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatRoomCreationContactViewModel.kt

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.contact.Contact
+import org.linphone.contact.ContactViewModelInterface
+import org.linphone.core.*
+import org.linphone.utils.LinphoneUtils
+
+class ChatRoomCreationContactViewModel(private val searchResult: SearchResult) : ViewModel(), ContactViewModelInterface {
+    override val contact = MutableLiveData<Contact>()
+
+    override val displayName: String by lazy {
+        when {
+            searchResult.friend != null -> searchResult.friend.name
+            searchResult.address != null -> LinphoneUtils.getDisplayName(searchResult.address)
+            else -> searchResult.phoneNumber
+        }
+    }
+
+    val isDisabled: MutableLiveData<Boolean> by lazy {
+        MutableLiveData<Boolean>()
+    }
+
+    val isSelected: MutableLiveData<Boolean> by lazy {
+        MutableLiveData<Boolean>()
+    }
+
+    val isLinphoneUser: Boolean by lazy {
+        searchResult.friend?.getPresenceModelForUriOrTel(searchResult.phoneNumber ?: searchResult.address.asStringUriOnly())?.basicStatus == PresenceBasicStatus.Open
+    }
+
+    val sipUri: String by lazy {
+        searchResult.phoneNumber ?: searchResult.address.asStringUriOnly()
+    }
+
+    val address: Address by lazy {
+        searchResult.address
+    }
+
+    val hasLimeX3DHCapability: Boolean
+        get() = searchResult.hasCapability(FriendCapability.LimeX3Dh)
+
+    var listener: ChatRoomCreationContactSelectionListener? = null
+
+    init {
+        isDisabled.value = false
+        isSelected.value = false
+        searchMatchingContact()
+    }
+
+    private fun searchMatchingContact() {
+        if (searchResult.address != null) {
+            contact.value =
+                coreContext.contactsManager.findContactByAddress(searchResult.address)
+        } else if (searchResult.phoneNumber != null) {
+            contact.value = coreContext.contactsManager.findContactByPhoneNumber(searchResult.phoneNumber)
+        }
+    }
+}
+
+interface ChatRoomCreationContactSelectionListener {
+    fun onUnSelected(searchResult: SearchResult)
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatRoomCreationViewModel.kt

@@ -0,0 +1,202 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.viewmodels.ErrorReportingViewModel
+import org.linphone.contact.ContactsUpdatedListenerStub
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+import org.linphone.utils.AppUtils
+import org.linphone.utils.Event
+import org.linphone.utils.LinphoneUtils
+
+class ChatRoomCreationViewModel : ErrorReportingViewModel() {
+    val chatRoomCreatedEvent: MutableLiveData<Event<ChatRoom>> by lazy {
+        MutableLiveData<Event<ChatRoom>>()
+    }
+
+    val createGroupChat = MutableLiveData<Boolean>()
+
+    val sipContactsSelected = MutableLiveData<Boolean>()
+
+    val isEncrypted = MutableLiveData<Boolean>()
+
+    val contactsList = MutableLiveData<ArrayList<SearchResult>>()
+
+    val waitForChatRoomCreation = MutableLiveData<Boolean>()
+
+    val selectedAddresses = MutableLiveData<ArrayList<Address>>()
+
+    val limeAvailable: Boolean = LinphoneUtils.isLimeAvailable()
+
+    private var filter: String = ""
+
+    private val contactsUpdatedListener = object : ContactsUpdatedListenerStub() {
+        override fun onContactsUpdated() {
+            Log.i("[Chat Room Creation] Contacts have changed")
+            updateContactsList()
+        }
+    }
+
+    private val listener = object : ChatRoomListenerStub() {
+        override fun onStateChanged(room: ChatRoom, state: ChatRoom.State) {
+            if (state == ChatRoom.State.Created) {
+                waitForChatRoomCreation.value = false
+                Log.i("[Chat Room Creation] Chat room created")
+                chatRoomCreatedEvent.value = Event(room)
+            } else if (state == ChatRoom.State.CreationFailed) {
+                Log.e("[Chat Room Creation] Group chat room creation has failed !")
+                waitForChatRoomCreation.value = false
+                onErrorEvent.value = Event(R.string.chat_room_creation_failed_snack)
+            }
+        }
+    }
+
+    init {
+        createGroupChat.value = false
+        sipContactsSelected.value = true
+        isEncrypted.value = false
+
+        selectedAddresses.value = arrayListOf()
+
+        updateContactsList()
+
+        coreContext.contactsManager.addListener(contactsUpdatedListener)
+        waitForChatRoomCreation.value = false
+    }
+
+    override fun onCleared() {
+        coreContext.contactsManager.removeListener(contactsUpdatedListener)
+
+        super.onCleared()
+    }
+
+    fun updateEncryption(encrypted: Boolean) {
+        isEncrypted.value = encrypted
+    }
+
+    fun filter(search: String) {
+        if (filter.isNotEmpty() && filter.length > search.length) {
+            coreContext.contactsManager.magicSearch.resetSearchCache()
+        }
+        filter = search
+
+        updateContactsList()
+    }
+
+    fun updateContactsList() {
+        val domain = if (sipContactsSelected.value == true) coreContext.core.defaultProxyConfig?.domain ?: "" else ""
+        val results = coreContext.contactsManager.magicSearch.getContactListFromFilter(filter, domain)
+
+        val list = arrayListOf<SearchResult>()
+        for (result in results) {
+            list.add(result)
+        }
+        contactsList.value = list
+    }
+
+    fun toggleSelectionForSearchResult(searchResult: SearchResult) {
+        if (searchResult.address != null) {
+            toggleSelectionForAddress(searchResult.address)
+        }
+    }
+
+    fun toggleSelectionForAddress(address: Address) {
+        val list = arrayListOf<Address>()
+        list.addAll(selectedAddresses.value.orEmpty())
+
+        val found = list.find {
+            if (address != null) it.weakEqual(address) else false
+        }
+
+        if (found != null) {
+            list.remove(found)
+        } else {
+            val contact = coreContext.contactsManager.findContactByAddress(address)
+            if (contact != null) address.displayName = contact.fullName
+            list.add(address)
+        }
+
+        selectedAddresses.value = list
+    }
+
+    fun createOneToOneChat(searchResult: SearchResult) {
+        waitForChatRoomCreation.value = true
+        val defaultProxyConfig = coreContext.core.defaultProxyConfig
+        var room: ChatRoom?
+
+        if (defaultProxyConfig == null) {
+            val address = searchResult.address ?: coreContext.core.interpretUrl(searchResult.phoneNumber)
+            if (address == null) {
+                Log.e("[Chat Room Creation] Can't get a valid address from search result $searchResult")
+                onErrorEvent.value = Event(R.string.chat_room_creation_failed_snack)
+                waitForChatRoomCreation.value = false
+                return
+            }
+
+            Log.w("[Chat Room Creation] No default proxy config found, creating basic chat room without local identity with ${address.asStringUriOnly()}")
+            room = coreContext.core.getChatRoom(address)
+            if (room != null) {
+                chatRoomCreatedEvent.value = Event(room)
+            } else {
+                Log.e("[Chat Room Creation] Couldn't create chat room with remote ${address.asStringUriOnly()}")
+            }
+            waitForChatRoomCreation.value = false
+            return
+        }
+
+        val encrypted = isEncrypted.value == true
+        room = coreContext.core.findOneToOneChatRoom(defaultProxyConfig.identityAddress, searchResult.address, encrypted)
+        if (room == null) {
+            Log.w("[Chat Room Creation] Couldn't find existing 1-1 chat room with remote ${searchResult.address.asStringUriOnly()}, encryption=$encrypted and local identity ${defaultProxyConfig.identityAddress.asStringUriOnly()}")
+            if (encrypted) {
+                val params: ChatRoomParams = coreContext.core.createDefaultChatRoomParams()
+                // This will set the backend to FlexisipChat automatically
+                params.enableEncryption(true)
+                params.enableGroup(false)
+
+                val participants = arrayOfNulls<Address>(1)
+                participants[0] = searchResult.address
+
+                room = coreContext.core.createChatRoom(
+                    params,
+                    AppUtils.getString(R.string.chat_room_dummy_subject),
+                    participants
+                )
+                room?.addListener(listener)
+            } else {
+                room = coreContext.core.getChatRoom(searchResult.address, defaultProxyConfig.identityAddress)
+                if (room != null) {
+                    chatRoomCreatedEvent.value = Event(room)
+                } else {
+                    Log.e("[Chat Room Creation] Couldn't create chat room with remote ${searchResult.address.asStringUriOnly()} and local identity ${defaultProxyConfig.identityAddress.asStringUriOnly()}")
+                }
+                waitForChatRoomCreation.value = false
+            }
+        } else {
+            Log.i("[Chat Room Creation] Found existing 1-1 chat room with remote ${searchResult.address.asStringUriOnly()}, encryption=$encrypted and local identity ${defaultProxyConfig.identityAddress.asStringUriOnly()}")
+            chatRoomCreatedEvent.value = Event(room)
+            waitForChatRoomCreation.value = false
+        }
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatRoomViewModel.kt

@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.contact.Contact
+import org.linphone.contact.ContactViewModelInterface
+import org.linphone.contact.ContactsUpdatedListenerStub
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+import org.linphone.utils.AppUtils
+import org.linphone.utils.LinphoneUtils
+import org.linphone.utils.TimestampUtils
+
+class ChatRoomViewModelFactory(private val chatRoom: ChatRoom) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return ChatRoomViewModel(chatRoom) as T
+    }
+}
+
+class ChatRoomViewModel(val chatRoom: ChatRoom) : ViewModel(), ContactViewModelInterface {
+    override val contact = MutableLiveData<Contact>()
+
+    override val displayName: String by lazy {
+        when {
+            chatRoom.hasCapability(ChatRoomCapabilities.Basic.toInt()) -> LinphoneUtils.getDisplayName(chatRoom.peerAddress)
+            chatRoom.hasCapability(ChatRoomCapabilities.OneToOne.toInt()) -> LinphoneUtils.getDisplayName(chatRoom.participants.first()?.address ?: chatRoom.peerAddress)
+            chatRoom.hasCapability(ChatRoomCapabilities.Conference.toInt()) -> chatRoom.subject
+            else -> chatRoom.peerAddress.asStringUriOnly()
+        }
+    }
+
+    override val securityLevel: ChatRoomSecurityLevel
+        get() = chatRoom.securityLevel
+
+    override val showGroupChatAvatar: Boolean
+        get() = chatRoom.hasCapability(ChatRoomCapabilities.Conference.toInt()) && !chatRoom.hasCapability(ChatRoomCapabilities.OneToOne.toInt())
+
+    val subject = MutableLiveData<String>()
+
+    val participants = MutableLiveData<String>()
+
+    val unreadMessagesCount = MutableLiveData<Int>()
+
+    val lastUpdate = MutableLiveData<String>()
+
+    val lastMessageText = MutableLiveData<String>()
+
+    val callInProgress = MutableLiveData<Boolean>()
+
+    val remoteIsComposing = MutableLiveData<Boolean>()
+
+    val composingList = MutableLiveData<String>()
+
+    val securityLevelIcon = MutableLiveData<Int>()
+
+    val securityLevelContentDescription = MutableLiveData<Int>()
+
+    val oneToOneChatRoom: Boolean
+        get() = chatRoom.hasCapability(ChatRoomCapabilities.OneToOne.toInt())
+
+    val encryptedChatRoom: Boolean
+        get() = chatRoom.hasCapability(ChatRoomCapabilities.Encrypted.toInt())
+
+    val basicChatRoom: Boolean
+        get() = chatRoom.hasCapability(ChatRoomCapabilities.Basic.toInt())
+
+    val peerSipUri: String
+        get() = chatRoom.peerAddress.asStringUriOnly()
+
+    val oneParticipantOneDevice: Boolean
+        get() {
+            return chatRoom.hasCapability(ChatRoomCapabilities.OneToOne.toInt()) &&
+                chatRoom.me.devices.size == 1 &&
+                chatRoom.participants.first().devices.size == 1
+        }
+
+    val addressToCall: Address
+        get() {
+            return if (chatRoom.hasCapability(ChatRoomCapabilities.Basic.toInt()))
+                chatRoom.peerAddress
+            else
+                chatRoom.participants.first().address
+        }
+
+    val onlyParticipantOnlyDeviceAddress: Address
+        get() = chatRoom.participants.first().devices.first().address
+
+    private val contactsUpdatedListener = object : ContactsUpdatedListenerStub() {
+        override fun onContactsUpdated() {
+            Log.i("[Chat Room] Contacts have changed")
+            contactLookup()
+        }
+    }
+
+    private val coreListener: CoreListenerStub = object : CoreListenerStub() {
+        override fun onCallStateChanged(
+            core: Core,
+            call: Call,
+            state: Call.State,
+            message: String
+        ) {
+            callInProgress.value = core.callsNb > 0
+        }
+    }
+
+    private val chatRoomListener: ChatRoomListenerStub = object : ChatRoomListenerStub() {
+        override fun onStateChanged(chatRoom: ChatRoom, state: ChatRoom.State) {
+            Log.i("[Chat Room] $chatRoom state changed: $state")
+        }
+
+        override fun onSubjectChanged(chatRoom: ChatRoom, eventLog: EventLog) {
+            subject.value = chatRoom.subject
+        }
+
+        override fun onChatMessageReceived(chatRoom: ChatRoom, eventLog: EventLog) {
+            unreadMessagesCount.value = chatRoom.unreadMessagesCount
+            lastMessageText.value = formatLastMessage(eventLog.chatMessage)
+        }
+
+        override fun onChatMessageSent(chatRoom: ChatRoom, eventLog: EventLog) {
+            lastMessageText.value = formatLastMessage(eventLog.chatMessage)
+        }
+
+        override fun onParticipantAdded(chatRoom: ChatRoom, eventLog: EventLog) {
+            contactLookup()
+            updateSecurityIcon()
+        }
+
+        override fun onParticipantRemoved(chatRoom: ChatRoom, eventLog: EventLog) {
+            contactLookup()
+            updateSecurityIcon()
+        }
+
+        override fun onIsComposingReceived(
+            chatRoom: ChatRoom,
+            remoteAddr: Address,
+            isComposing: Boolean
+        ) {
+            updateRemotesComposing()
+        }
+
+        override fun onConferenceJoined(chatRoom: ChatRoom, eventLog: EventLog) {
+            contactLookup()
+            updateSecurityIcon()
+        }
+
+        override fun onSecurityEvent(chatRoom: ChatRoom, eventLog: EventLog) {
+            updateSecurityIcon()
+        }
+
+        override fun onParticipantDeviceAdded(chatRoom: ChatRoom, eventLog: EventLog) {
+            updateSecurityIcon()
+        }
+
+        override fun onParticipantDeviceRemoved(chatRoom: ChatRoom, eventLog: EventLog) {
+            updateSecurityIcon()
+        }
+
+        override fun onEphemeralMessageDeleted(chatRoom: ChatRoom, eventLog: EventLog) {
+            Log.i("[Chat Room] Ephemeral message deleted, updated last message displayed")
+            lastMessageText.value = formatLastMessage(chatRoom.lastMessageInHistory)
+        }
+    }
+
+    init {
+        chatRoom.core.addListener(coreListener)
+        chatRoom.addListener(chatRoomListener)
+        coreContext.contactsManager.addListener(contactsUpdatedListener)
+
+        lastMessageText.value = formatLastMessage(chatRoom.lastMessageInHistory)
+        unreadMessagesCount.value = chatRoom.unreadMessagesCount
+        lastUpdate.value = TimestampUtils.toString(chatRoom.lastUpdateTime, true)
+
+        subject.value = chatRoom.subject
+        updateSecurityIcon()
+
+        contactLookup()
+
+        callInProgress.value = chatRoom.core.callsNb > 0
+        updateRemotesComposing()
+    }
+
+    override fun onCleared() {
+        coreContext.contactsManager.removeListener(contactsUpdatedListener)
+        chatRoom.removeListener(chatRoomListener)
+        chatRoom.core.removeListener(coreListener)
+
+        super.onCleared()
+    }
+
+    fun contactLookup() {
+        if (chatRoom.hasCapability(ChatRoomCapabilities.OneToOne.toInt())) {
+            searchMatchingContact()
+        } else {
+            getParticipantsNames()
+        }
+    }
+
+    private fun formatLastMessage(msg: ChatMessage?): String {
+        if (msg == null) return ""
+
+        val sender: String =
+            coreContext.contactsManager.findContactByAddress(msg.fromAddress)?.fullName
+            ?: LinphoneUtils.getDisplayName(msg.fromAddress)
+        var body = ""
+        for (content in msg.contents) {
+            if (content.isFile || content.isFileTransfer) body += content.name + " "
+            else if (content.isText) body += content.stringBuffer + " "
+        }
+
+        return "$sender: $body"
+    }
+
+    private fun searchMatchingContact() {
+        val remoteAddress = if (chatRoom.hasCapability(ChatRoomCapabilities.Basic.toInt())) {
+            chatRoom.peerAddress
+        } else {
+            if (chatRoom.participants.isNotEmpty()) {
+                chatRoom.participants[0].address
+            } else {
+                Log.e("[Chat Room] $chatRoom doesn't have any participant in state ${chatRoom.state}!")
+                return
+            }
+        }
+        contact.value = coreContext.contactsManager.findContactByAddress(remoteAddress)
+    }
+
+    private fun getParticipantsNames() {
+        if (oneToOneChatRoom) return
+
+        var participantsList = ""
+        var index = 0
+        for (participant in chatRoom.participants) {
+            val contact: Contact? =
+                coreContext.contactsManager.findContactByAddress(participant.address)
+            participantsList += contact?.fullName ?: LinphoneUtils.getDisplayName(participant.address)
+            index++
+            if (index != chatRoom.nbParticipants) participantsList += ", "
+        }
+        participants.value = participantsList
+    }
+
+    private fun updateSecurityIcon() {
+        securityLevelIcon.value = when (chatRoom.securityLevel) {
+            ChatRoomSecurityLevel.Safe -> R.drawable.security_2_indicator
+            ChatRoomSecurityLevel.Encrypted -> R.drawable.security_1_indicator
+            else -> R.drawable.security_alert_indicator
+        }
+        securityLevelContentDescription.value = when (chatRoom.securityLevel) {
+            ChatRoomSecurityLevel.Safe -> R.string.content_description_security_level_safe
+            ChatRoomSecurityLevel.Encrypted -> R.string.content_description_security_level_encrypted
+            else -> R.string.content_description_security_level_unsafe
+        }
+    }
+
+    private fun updateRemotesComposing() {
+        remoteIsComposing.value = chatRoom.isRemoteComposing
+
+        var composing = ""
+        for (address in chatRoom.composingAddresses) {
+            val contact: Contact? = coreContext.contactsManager.findContactByAddress(address)
+            composing += if (composing.isNotEmpty()) ", " else ""
+            composing += contact?.fullName ?: LinphoneUtils.getDisplayName(address)
+        }
+        composingList.value = AppUtils.getStringWithPlural(R.plurals.chat_room_remote_composing, chatRoom.composingAddresses.size, composing)
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatRoomsListViewModel.kt

@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.activities.main.viewmodels.ErrorReportingViewModel
+import org.linphone.contact.ContactsUpdatedListenerStub
+import org.linphone.core.*
+import org.linphone.core.tools.Log
+import org.linphone.utils.Event
+import org.linphone.utils.LinphoneUtils
+
+class ChatRoomsListViewModel : ErrorReportingViewModel() {
+    val chatRooms = MutableLiveData<ArrayList<ChatRoom>>()
+
+    val latestUpdatedChatRoomId = MutableLiveData<Int>()
+
+    val contactsUpdatedEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
+    val groupChatAvailable: Boolean = LinphoneUtils.isGroupChatAvailable()
+
+    private val contactsUpdatedListener = object : ContactsUpdatedListenerStub() {
+        override fun onContactsUpdated() {
+            Log.i("[Chat Rooms] Contacts have changed")
+            contactsUpdatedEvent.value = Event(true)
+        }
+    }
+
+    private val listener: CoreListenerStub = object : CoreListenerStub() {
+        override fun onChatRoomStateChanged(core: Core, chatRoom: ChatRoom, state: ChatRoom.State) {
+            if (state == ChatRoom.State.Created) {
+                updateChatRooms()
+            } else if (state == ChatRoom.State.TerminationFailed) {
+                Log.e("[Chat Rooms] Group chat room removal for address ${chatRoom.peerAddress.asStringUriOnly()} has failed !")
+                onErrorEvent.value = Event(R.string.chat_room_removal_failed_snack)
+            }
+        }
+
+        override fun onChatRoomSubjectChanged(core: Core, chatRoom: ChatRoom) {
+            updateChatRoom(chatRoom)
+        }
+
+        override fun onChatRoomRead(core: Core, chatRoom: ChatRoom) {
+            updateChatRoom(chatRoom)
+        }
+
+        override fun onMessageSent(core: Core, chatRoom: ChatRoom, message: ChatMessage) {
+            if (chatRooms.value?.indexOf(chatRoom) == 0) updateChatRoom(chatRoom)
+            else updateChatRooms()
+        }
+
+        override fun onMessageReceived(core: Core, chatRoom: ChatRoom, message: ChatMessage) {
+            if (chatRooms.value?.indexOf(chatRoom) == 0) updateChatRoom(chatRoom)
+            else updateChatRooms()
+        }
+
+        override fun onMessageReceivedUnableDecrypt(
+            core: Core,
+            chatRoom: ChatRoom,
+            message: ChatMessage
+        ) {
+            updateChatRooms()
+        }
+    }
+
+    private val chatRoomListener = object : ChatRoomListenerStub() {
+        override fun onStateChanged(chatRoom: ChatRoom, newState: ChatRoom.State) {
+            if (newState == ChatRoom.State.Deleted) {
+                val list = arrayListOf<ChatRoom>()
+                list.addAll(chatRooms.value.orEmpty())
+                list.remove(chatRoom)
+                chatRooms.value = list
+            }
+        }
+    }
+
+    private var chatRoomsToDeleteCount = 0
+
+    init {
+        chatRooms.value = getChatRooms()
+        coreContext.core.addListener(listener)
+        coreContext.contactsManager.addListener(contactsUpdatedListener)
+    }
+
+    override fun onCleared() {
+        coreContext.contactsManager.removeListener(contactsUpdatedListener)
+        coreContext.core.removeListener(listener)
+
+        super.onCleared()
+    }
+
+    fun deleteChatRoom(chatRoom: ChatRoom?) {
+        for (eventLog in chatRoom?.getHistoryMessageEvents(0).orEmpty()) {
+            LinphoneUtils.deleteFilesAttachedToEventLog(eventLog)
+        }
+
+        chatRoomsToDeleteCount = 1
+        chatRoom?.addListener(chatRoomListener)
+        chatRoom?.core?.deleteChatRoom(chatRoom)
+    }
+
+    fun deleteChatRooms(chatRooms: ArrayList<ChatRoom>) {
+        chatRoomsToDeleteCount = chatRooms.size
+        for (chatRoom in chatRooms) {
+            for (eventLog in chatRoom.getHistoryMessageEvents(0).orEmpty()) {
+                LinphoneUtils.deleteFilesAttachedToEventLog(eventLog)
+            }
+
+            chatRoom.addListener(chatRoomListener)
+            chatRoom.core?.deleteChatRoom(chatRoom)
+        }
+    }
+
+    private fun updateChatRoom(chatRoom: ChatRoom) {
+        latestUpdatedChatRoomId.value = chatRooms.value?.indexOf(chatRoom)
+    }
+
+    private fun updateChatRooms() {
+        chatRooms.value = getChatRooms()
+    }
+
+    private fun getChatRooms(): ArrayList<ChatRoom> {
+        val list = arrayListOf<ChatRoom>()
+
+        for (room in coreContext.core.chatRooms) {
+            list.add(room)
+        }
+
+        return list
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/DevicesListChildViewModel.kt

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.core.ChatRoomSecurityLevel
+import org.linphone.core.ParticipantDevice
+
+class DevicesListChildViewModel(private val device: ParticipantDevice) : ViewModel() {
+    val deviceName: String = device.name
+
+    val securityLevelIcon: Int by lazy {
+        when (device.securityLevel) {
+            ChatRoomSecurityLevel.Safe -> R.drawable.security_2_indicator
+            ChatRoomSecurityLevel.Encrypted -> R.drawable.security_1_indicator
+            else -> R.drawable.security_alert_indicator
+        }
+    }
+
+    val securityContentDescription: Int by lazy {
+        when (device.securityLevel) {
+            ChatRoomSecurityLevel.Safe -> R.string.content_description_security_level_safe
+            ChatRoomSecurityLevel.Encrypted -> R.string.content_description_security_level_encrypted
+            else -> R.string.content_description_security_level_unsafe
+        }
+    }
+
+    fun onClick() {
+        coreContext.startCall(device.address, true)
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/DevicesListGroupViewModel.kt

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.contact.GenericContactViewModel
+import org.linphone.core.ChatRoomSecurityLevel
+import org.linphone.core.Participant
+
+class DevicesListGroupViewModel(private val participant: Participant) : GenericContactViewModel(participant.address) {
+    override val securityLevel: ChatRoomSecurityLevel
+        get() = participant.securityLevel
+
+    private val device = if (participant.devices.isEmpty()) null else participant.devices.first()
+
+    val securityLevelIcon: Int by lazy {
+        when (device?.securityLevel) {
+            ChatRoomSecurityLevel.Safe -> R.drawable.security_2_indicator
+            ChatRoomSecurityLevel.Encrypted -> R.drawable.security_1_indicator
+            else -> R.drawable.security_alert_indicator
+        }
+    }
+
+    val securityLevelContentDescription: Int by lazy {
+        when (device?.securityLevel) {
+            ChatRoomSecurityLevel.Safe -> R.string.content_description_security_level_safe
+            ChatRoomSecurityLevel.Encrypted -> R.string.content_description_security_level_encrypted
+            else -> R.string.content_description_security_level_unsafe
+        }
+    }
+
+    val sipUri: String = participant.address.asStringUriOnly()
+
+    val isExpanded = MutableLiveData<Boolean>()
+
+    val devices = MutableLiveData<ArrayList<DevicesListChildViewModel>>()
+
+    init {
+        isExpanded.value = false
+
+        val list = arrayListOf<DevicesListChildViewModel>()
+        for (device in participant.devices) {
+            list.add(DevicesListChildViewModel((device)))
+        }
+        devices.value = list
+    }
+
+    fun toggleExpanded() {
+        isExpanded.value = isExpanded.value != true
+    }
+
+    fun onClick() {
+        if (device?.address != null) coreContext.startCall(device.address, true)
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/DevicesListViewModel.kt

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.core.ChatRoom
+import org.linphone.core.ChatRoomListenerStub
+import org.linphone.core.EventLog
+
+class DevicesListViewModelFactory(private val chatRoom: ChatRoom) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return DevicesListViewModel(chatRoom) as T
+    }
+}
+
+class DevicesListViewModel(private val chatRoom: ChatRoom) : ViewModel() {
+    val participants = MutableLiveData<ArrayList<DevicesListGroupViewModel>>()
+
+    private val listener = object : ChatRoomListenerStub() {
+        override fun onParticipantDeviceAdded(chatRoom: ChatRoom?, eventLog: EventLog?) {
+            updateParticipants()
+        }
+
+        override fun onParticipantDeviceRemoved(chatRoom: ChatRoom?, eventLog: EventLog?) {
+            updateParticipants()
+        }
+
+        override fun onParticipantAdded(chatRoom: ChatRoom?, eventLog: EventLog?) {
+            updateParticipants()
+        }
+
+        override fun onParticipantRemoved(chatRoom: ChatRoom?, eventLog: EventLog?) {
+            updateParticipants()
+        }
+    }
+
+    init {
+        chatRoom.addListener(listener)
+        updateParticipants()
+    }
+
+    override fun onCleared() {
+        chatRoom.removeListener(listener)
+        super.onCleared()
+    }
+
+    private fun updateParticipants() {
+        val list = arrayListOf<DevicesListGroupViewModel>()
+        list.add(DevicesListGroupViewModel(chatRoom.me))
+        for (participant in chatRoom.participants) {
+            list.add(DevicesListGroupViewModel(participant))
+        }
+        participants.value = list
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/EphemeralDurationViewModel.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2019 Belledonne Communications SARL.
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
  *
  * This file is part of linphone-android
  * (see https://www.linphone.org).
@@ -17,21 +17,23 @@
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-package org.linphone.call;
+package org.linphone.activities.main.chat.viewmodels
 
-import android.view.View;
+import androidx.lifecycle.ViewModel
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-import org.linphone.R;
 
-public class CallStatsViewHolder {
+class EphemeralDurationViewModel(
+    val textResource: Int,
+    private val selectedDuration: Long,
+    private val duration: Long,
+    private val listener: DurationItemClicked
+) : ViewModel() {
+    val selected: Boolean = selectedDuration == duration
 
-    public final RelativeLayout avatarLayout;
+    fun setSelected() {
-    public final TextView participantName, sipUri;
+        listener.onDurationValueChanged(duration)
-
-    public CallStatsViewHolder(View v) {
-        avatarLayout = v.findViewById(R.id.avatar_layout);
-        participantName = v.findViewById(R.id.name);
-        sipUri = v.findViewById(R.id.sipUri);
     }
 }
+
+interface DurationItemClicked {
+    fun onDurationValueChanged(duration: Long)
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/EphemeralViewModel.kt

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import org.linphone.R
+import org.linphone.core.ChatRoom
+import org.linphone.core.tools.Log
+
+class EphemeralViewModelFactory(private val chatRoom: ChatRoom) :
+    ViewModelProvider.NewInstanceFactory() {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        return EphemeralViewModel(chatRoom) as T
+    }
+}
+
+class EphemeralViewModel(private val chatRoom: ChatRoom) : ViewModel() {
+    val durationsList = MutableLiveData<ArrayList<EphemeralDurationViewModel>>()
+
+    var currentSelectedDuration: Long = 0
+
+    private val listener = object : DurationItemClicked {
+        override fun onDurationValueChanged(duration: Long) {
+            currentSelectedDuration = duration
+            computeEphemeralDurationValues()
+        }
+    }
+
+    init {
+        Log.i("[Ephemeral Messages] Current duration is ${chatRoom.ephemeralLifetime}, ephemeral enabled? ${chatRoom.ephemeralEnabled()}")
+        currentSelectedDuration = if (chatRoom.ephemeralEnabled()) chatRoom.ephemeralLifetime else 0
+        computeEphemeralDurationValues()
+    }
+
+    fun updateChatRoomEphemeralDuration() {
+        Log.i("[Ephemeral Messages] Selected value is $currentSelectedDuration")
+        if (currentSelectedDuration > 0) {
+            if (chatRoom.ephemeralLifetime != currentSelectedDuration) {
+                Log.i("[Ephemeral Messages] Setting new lifetime for ephemeral messages to $currentSelectedDuration")
+                chatRoom.ephemeralLifetime = currentSelectedDuration
+            } else {
+                Log.i("[Ephemeral Messages] Configured lifetime for ephemeral messages was already $currentSelectedDuration")
+            }
+
+            if (!chatRoom.ephemeralEnabled()) {
+                Log.i("[Ephemeral Messages] Ephemeral messages were disabled, enable them")
+                chatRoom.enableEphemeral(true)
+            }
+        } else if (chatRoom.ephemeralEnabled()) {
+            Log.i("[Ephemeral Messages] Ephemeral messages were enabled, disable them")
+            chatRoom.enableEphemeral(false)
+        }
+    }
+
+    private fun computeEphemeralDurationValues() {
+        val list = arrayListOf<EphemeralDurationViewModel>()
+        list.add(EphemeralDurationViewModel(R.string.chat_room_ephemeral_message_disabled, currentSelectedDuration, 0, listener))
+        list.add(EphemeralDurationViewModel(R.string.chat_room_ephemeral_message_one_minute, currentSelectedDuration, 60, listener))
+        list.add(EphemeralDurationViewModel(R.string.chat_room_ephemeral_message_one_hour, currentSelectedDuration, 3600, listener))
+        list.add(EphemeralDurationViewModel(R.string.chat_room_ephemeral_message_one_day, currentSelectedDuration, 86400, listener))
+        list.add(EphemeralDurationViewModel(R.string.chat_room_ephemeral_message_three_days, currentSelectedDuration, 259200, listener))
+        list.add(EphemeralDurationViewModel(R.string.chat_room_ephemeral_message_one_week, currentSelectedDuration, 604800, listener))
+        durationsList.value = list
+    }
+}

app/src/main/java/org/linphone/activities/main/chat/viewmodels/EventViewModel.kt

@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.activities.main.chat.viewmodels
+
+import android.content.Context
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.R
+import org.linphone.contact.Contact
+import org.linphone.core.EventLog
+import org.linphone.core.tools.Log
+import org.linphone.utils.LinphoneUtils
+
+class EventViewModel(private val eventLog: EventLog) : ViewModel() {
+    val text = MutableLiveData<String>()
+
+    val isSecurity: Boolean by lazy {
+        when (eventLog.type) {
+            EventLog.Type.ConferenceSecurityEvent -> true
+            else -> false
+        }
+    }
+
+    private val contact: Contact? by lazy {
+        val address = eventLog.participantAddress ?: eventLog.securityEventFaultyDeviceAddress
+        if (address != null) {
+            coreContext.contactsManager.findContactByAddress(address)
+        } else {
+            Log.e("[Event ViewModel] Unexpected null address for event $eventLog")
+            null
+        }
+    }
+
+    private val displayName: String by lazy {
+        val address = eventLog.participantAddress ?: eventLog.securityEventFaultyDeviceAddress
+        if (address != null) {
+            LinphoneUtils.getDisplayName(address)
+        } else {
+            Log.e("[Event ViewModel] Unexpected null address for event $eventLog")
+            ""
+        }
+    }
+
+    init {
+        updateEventText()
+    }
+
+    private fun getName(): String {
+        return contact?.fullName ?: displayName
+    }
+
+    private fun updateEventText() {
+        val context: Context = coreContext.context
+
+        text.value = when (eventLog.type) {
+            EventLog.Type.ConferenceCreated -> context.getString(R.string.chat_event_conference_created)
+            EventLog.Type.ConferenceTerminated -> context.getString(R.string.chat_event_conference_destroyed)
+            EventLog.Type.ConferenceParticipantAdded -> context.getString(R.string.chat_event_participant_added).format(getName())
+            EventLog.Type.ConferenceParticipantRemoved -> context.getString(R.string.chat_event_participant_removed).format(getName())
+            EventLog.Type.ConferenceSubjectChanged -> context.getString(R.string.chat_event_subject_changed).format(eventLog.subject)
+            EventLog.Type.ConferenceParticipantSetAdmin -> context.getString(R.string.chat_event_admin_set).format(getName())
+            EventLog.Type.ConferenceParticipantUnsetAdmin -> context.getString(R.string.chat_event_admin_unset).format(getName())
+            EventLog.Type.ConferenceParticipantDeviceAdded -> context.getString(R.string.chat_event_device_added).format(getName())
+            EventLog.Type.ConferenceParticipantDeviceRemoved -> context.getString(R.string.chat_event_device_removed).format(getName())
+            EventLog.Type.ConferenceSecurityEvent -> {
+                val name = getName()
+                when (eventLog.securityEventType) {
+                    EventLog.SecurityEventType.EncryptionIdentityKeyChanged -> context.getString(R.string.chat_security_event_lime_identity_key_changed).format(name)
+                    EventLog.SecurityEventType.ManInTheMiddleDetected -> context.getString(R.string.chat_security_event_man_in_the_middle_detected).format(name)
+                    EventLog.SecurityEventType.SecurityLevelDowngraded -> context.getString(R.string.chat_security_event_security_level_downgraded).format(name)
+                    EventLog.SecurityEventType.ParticipantMaxDeviceCountExceeded -> context.getString(R.string.chat_security_event_participant_max_count_exceeded).format(name)
+                    else -> "Unexpected security event for $name: ${eventLog.securityEventType}"
+                }
+            }
+            EventLog.Type.ConferenceEphemeralMessageDisabled -> context.getString(R.string.chat_event_ephemeral_disabled)
+            EventLog.Type.ConferenceEphemeralMessageEnabled -> context.getString(R.string.chat_event_ephemeral_enabled).format(formatEphemeralExpiration(context, eventLog.ephemeralMessageLifetime))
+            EventLog.Type.ConferenceEphemeralMessageLifetimeChanged -> context.getString(R.string.chat_event_ephemeral_lifetime_changed).format(formatEphemeralExpiration(context, eventLog.ephemeralMessageLifetime))
+            else -> "Unexpected event: ${eventLog.type}"
+        }
+    }
+
+    private fun formatEphemeralExpiration(context: Context, duration: Long): String {
+        return when (duration) {
+            0L -> context.getString(R.string.chat_room_ephemeral_message_disabled)
+            60L -> context.getString(R.string.chat_room_ephemeral_message_one_minute)
+            3600L -> context.getString(R.string.chat_room_ephemeral_message_one_hour)
+            86400L -> context.getString(R.string.chat_room_ephemeral_message_one_day)
+            259200L -> context.getString(R.string.chat_room_ephemeral_message_three_days)
+            604800L -> context.getString(R.string.chat_room_ephemeral_message_one_week)
+            else -> "Unexpected duration"
+        }
+    }
+}