Feature/sample app

sample/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

sample/app/.gitignore

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+/build

sample/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "org.linphone.sample"
+        minSdkVersion 21
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+repositories {
+    maven {
+        // Replace snapshots by releases for releases !
+        url "https://linphone.org/snapshots/maven_repository"
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+
+    implementation "org.linphone:linphone-sdk-android:4.2+"
+}

sample/app/proguard-rules.pro

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+# 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

sample/app/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.linphone.sample">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:label="@string/app_name"
+        android:banner="@drawable/banner"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:name=".LauncherActivity"
+            android:noHistory="true"
+            android:theme="@style/AppTheme">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity
+            android:name=".MainActivity"
+            android:theme="@style/AppTheme" />
+
+        <activity
+            android:name=".ConfigureAccountActivity"
+            android:theme="@style/AppTheme" />
+
+        <activity
+            android:name=".CallActivity"
+            android:noHistory="true"
+            android:launchMode="singleTop"
+            android:supportsPictureInPicture="true"
+            android:resizeableActivity="true"
+            android:theme="@style/AppTheme" />
+
+        <service
+            android:name=".LinphoneService"
+            android:label="@string/app_name" />
+
+    </application>
+</manifest>

sample/app/src/main/java/org/linphone/sample/CallActivity.java

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+package org.linphone.sample;
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.util.DisplayMetrics;
+import android.view.TextureView;
+import android.widget.RelativeLayout;
+
+import androidx.annotation.Nullable;
+
+import org.linphone.core.Call;
+import org.linphone.core.Core;
+import org.linphone.core.CoreListenerStub;
+import org.linphone.core.VideoDefinition;
+import org.linphone.core.tools.Log;
+import org.linphone.mediastream.Version;
+
+public class CallActivity extends Activity {
+    // We use 2 TextureView, one for remote video and one for local camera preview
+    private TextureView mVideoView;
+    private TextureView mCaptureView;
+
+    private CoreListenerStub mCoreListener;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.call);
+
+        mVideoView = findViewById(R.id.videoSurface);
+        mCaptureView = findViewById(R.id.videoCaptureSurface);
+
+        Core core = LinphoneService.getCore();
+        // We need to tell the core in which to display what
+        core.setNativeVideoWindowId(mVideoView);
+        core.setNativePreviewWindowId(mCaptureView);
+
+        // Listen for call state changes
+        mCoreListener = new CoreListenerStub() {
+            @Override
+            public void onCallStateChanged(Core lc, Call call, Call.State state, String message) {
+                if (state == Call.State.End || state == Call.State.Released) {
+                    // Once call is finished (end state), terminate the activity
+                    // We also check for released state (called a few seconds later) just in case
+                    // we missed the first one
+                    finish();
+                }
+            }
+        };
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        LinphoneService.getCore().addListener(mCoreListener);
+        resizePreview();
+    }
+
+    @Override
+    protected void onPause() {
+        LinphoneService.getCore().removeListener(mCoreListener);
+
+        super.onPause();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+    }
+
+    @TargetApi(24)
+    @Override
+    public void onUserLeaveHint() {
+        // If the device supports Picture in Picture let's use it
+        boolean supportsPip =
+                getPackageManager()
+                        .hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE);
+        Log.i("[Call] Is picture in picture supported: " + supportsPip);
+        if (supportsPip && Version.sdkAboveOrEqual(24)) {
+            enterPictureInPictureMode();
+        }
+    }
+
+    @Override
+    public void onPictureInPictureModeChanged(
+            boolean isInPictureInPictureMode, Configuration newConfig) {
+        if (isInPictureInPictureMode) {
+            // Currently nothing to do has we only display video
+            // But if we had controls or other UI elements we should hide them
+        } else {
+            // If we did hide something, let's make them visible again
+        }
+    }
+
+    private void resizePreview() {
+        Core core = LinphoneService.getCore();
+        if (core.getCallsNb() > 0) {
+            Call call = core.getCurrentCall();
+            if (call == null) {
+                call = core.getCalls()[0];
+            }
+            if (call == null) return;
+
+            DisplayMetrics metrics = new DisplayMetrics();
+            getWindowManager().getDefaultDisplay().getMetrics(metrics);
+            int screenHeight = metrics.heightPixels;
+            int maxHeight =
+                    screenHeight / 4; // Let's take at most 1/4 of the screen for the camera preview
+
+            VideoDefinition videoSize =
+                    call.getCurrentParams()
+                            .getSentVideoDefinition(); // It already takes care of rotation
+            if (videoSize.getWidth() == 0 || videoSize.getHeight() == 0) {
+                Log.w(
+                        "[Video] Couldn't get sent video definition, using default video definition");
+                videoSize = core.getPreferredVideoDefinition();
+            }
+            int width = videoSize.getWidth();
+            int height = videoSize.getHeight();
+
+            Log.d("[Video] Video height is " + height + ", width is " + width);
+            width = width * maxHeight / height;
+            height = maxHeight;
+
+            if (mCaptureView == null) {
+                Log.e("[Video] mCaptureView is null !");
+                return;
+            }
+
+            RelativeLayout.LayoutParams newLp = new RelativeLayout.LayoutParams(width, height);
+            newLp.addRule(
+                    RelativeLayout.ALIGN_PARENT_BOTTOM,
+                    1); // Clears the rule, as there is no removeRule until API 17.
+            newLp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 1);
+            mCaptureView.setLayoutParams(newLp);
+            Log.d("[Video] Video preview size set to " + width + "x" + height);
+        }
+    }
+}

sample/app/src/main/java/org/linphone/sample/ConfigureAccountActivity.java

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+package org.linphone.sample;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.RadioGroup;
+import android.widget.Toast;
+
+import androidx.annotation.Nullable;
+
+import org.linphone.core.AccountCreator;
+import org.linphone.core.Core;
+import org.linphone.core.CoreListenerStub;
+import org.linphone.core.ProxyConfig;
+import org.linphone.core.RegistrationState;
+import org.linphone.core.TransportType;
+
+public class ConfigureAccountActivity extends Activity {
+    private EditText mUsername, mPassword, mDomain;
+    private RadioGroup mTransport;
+    private Button mConnect;
+
+    private AccountCreator mAccountCreator;
+    private CoreListenerStub mCoreListener;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.configure_account);
+
+        // Account creator can help you create/config accounts, even not sip.linphone.org ones
+        // As we only want to configure an existing account, no need for server URL to make requests
+        // to know whether or not account exists, etc...
+        mAccountCreator = LinphoneService.getCore().createAccountCreator(null);
+
+        mUsername = findViewById(R.id.username);
+        mPassword = findViewById(R.id.password);
+        mDomain = findViewById(R.id.domain);
+        mTransport = findViewById(R.id.assistant_transports);
+
+        mConnect = findViewById(R.id.configure);
+        mConnect.setOnClickListener(
+                new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        configureAccount();
+                    }
+                });
+
+        mCoreListener = new CoreListenerStub() {
+            @Override
+            public void onRegistrationStateChanged(Core core, ProxyConfig cfg, RegistrationState state, String message) {
+                if (state == RegistrationState.Ok) {
+                    finish();
+                } else if (state == RegistrationState.Failed) {
+                    Toast.makeText(ConfigureAccountActivity.this, "Failure: " + message, Toast.LENGTH_LONG).show();
+                }
+            }
+        };
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        LinphoneService.getCore().addListener(mCoreListener);
+    }
+
+    @Override
+    protected void onPause() {
+        LinphoneService.getCore().removeListener(mCoreListener);
+
+        super.onPause();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+    }
+
+    private void configureAccount() {
+        // At least the 3 below values are required
+        mAccountCreator.setUsername(mUsername.getText().toString());
+        mAccountCreator.setDomain(mDomain.getText().toString());
+        mAccountCreator.setPassword(mPassword.getText().toString());
+
+        // By default it will be UDP if not set, but TLS is strongly recommended
+        switch (mTransport.getCheckedRadioButtonId()) {
+            case R.id.transport_udp:
+                mAccountCreator.setTransport(TransportType.Udp);
+                break;
+            case R.id.transport_tcp:
+                mAccountCreator.setTransport(TransportType.Tcp);
+                break;
+            case R.id.transport_tls:
+                mAccountCreator.setTransport(TransportType.Tls);
+                break;
+        }
+
+        // This will automatically create the proxy config and auth info and add them to the Core
+        ProxyConfig cfg = mAccountCreator.configure();
+        // Make sure the newly created one is the default
+        LinphoneService.getCore().setDefaultProxyConfig(cfg);
+    }
+}

sample/app/src/main/java/org/linphone/sample/LauncherActivity.java

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+package org.linphone.sample;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+
+public class LauncherActivity extends Activity {
+    private Handler mHandler;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.launcher);
+
+        mHandler = new Handler();
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+
+        // Check whether the Service is already running
+        if (LinphoneService.isReady()) {
+            onServiceReady();
+        } else {
+            // If it's not, let's start it
+            startService(
+                    new Intent().setClass(this, LinphoneService.class));
+            // And wait for it to be ready, so we can safely use it afterwards
+            new ServiceWaitThread().start();
+        }
+    }
+
+    private void onServiceReady() {
+        // Once the service is ready, we can move on in the application
+        // We'll forward the intent action, type and extras so it can be handled
+        // by the next activity if needed, it's not the launcher job to do that
+        Intent intent = new Intent();
+        intent.setClass(LauncherActivity.this, MainActivity.class);
+        if (getIntent() != null && getIntent().getExtras() != null) {
+            intent.putExtras(getIntent().getExtras());
+        }
+        intent.setAction(getIntent().getAction());
+        intent.setType(getIntent().getType());
+        startActivity(intent);
+    }
+
+    // This thread will periodically check if the Service is ready, and then call onServiceReady
+    private class ServiceWaitThread extends Thread {
+        public void run() {
+            while (!LinphoneService.isReady()) {
+                try {
+                    sleep(30);
+                } catch (InterruptedException e) {
+                    throw new RuntimeException("waiting thread sleep() has been interrupted");
+                }
+            }
+            // As we're in a thread, we can't do UI stuff in it, must post a runnable in UI thread
+            mHandler.post(
+                    new Runnable() {
+                        @Override
+                        public void run() {
+                            onServiceReady();
+                        }
+                    });
+        }
+    }
+}

sample/app/src/main/java/org/linphone/sample/LinphoneService.java

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+package org.linphone.sample;
+
+import android.app.Service;
+import android.content.Intent;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Handler;
+import android.os.IBinder;
+
+import androidx.annotation.Nullable;
+
+import org.linphone.core.Call;
+import org.linphone.core.CallParams;
+import org.linphone.core.Core;
+import org.linphone.core.CoreListenerStub;
+import org.linphone.core.Factory;
+import org.linphone.core.LogCollectionState;
+import org.linphone.core.MediaDirection;
+import org.linphone.core.tools.Log;
+import org.linphone.mediastream.Version;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Timer;
+import java.util.TimerTask;
+
+public class LinphoneService extends Service {
+    private static final String START_LINPHONE_LOGS = " ==== Device information dump ====";
+    // Keep a static reference to the Service so we can access it from anywhere in the app
+    private static LinphoneService sInstance;
+
+    private Handler mHandler;
+    private Timer mTimer;
+
+    private Core mCore;
+    private CoreListenerStub mCoreListener;
+
+    public static boolean isReady() {
+        return sInstance != null;
+    }
+
+    public static LinphoneService getInstance() {
+        return sInstance;
+    }
+
+    public static Core getCore() {
+        return sInstance.mCore;
+    }
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        // The first call to liblinphone SDK MUST BE to a Factory method
+        // So let's enable the library debug logs & log collection
+        String basePath = getFilesDir().getAbsolutePath();
+        Factory.instance().setLogCollectionPath(basePath);
+        Factory.instance().enableLogCollection(LogCollectionState.Enabled);
+        Factory.instance().setDebugMode(true, getString(R.string.app_name));
+
+        // Dump some useful information about the device we're running on
+        Log.i(START_LINPHONE_LOGS);
+        dumpDeviceInformation();
+        dumpInstalledLinphoneInformation();
+
+        mHandler = new Handler();
+        // This will be our main Core listener, it will change activities depending on events
+        mCoreListener = new CoreListenerStub() {
+            @Override
+            public void onCallStateChanged(Core lc, Call call, Call.State state, String message) {
+                if (state == Call.State.IncomingReceived) {
+                    // For this sample we will automatically answer incoming calls
+                    CallParams params = getCore().createCallParams(call);
+                    params.enableVideo(true);
+                    call.acceptWithParams(params);
+                } else if (state == Call.State.Connected) {
+                    // This stats means the call has been established, let's start the call activity
+                    Intent intent = new Intent(LinphoneService.this, CallActivity.class);
+                    // As it is the Service that is starting the activity, we have to give this flag
+                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                    startActivity(intent);
+                }
+            }
+        };
+
+        try {
+            // Let's copy some RAW resources to the device
+            // The default config file must only be installed once (the first time)
+            copyIfNotExist(R.raw.linphonerc_default, basePath + "/.linphonerc");
+            // The factory config is used to override any other setting, let's copy it each time
+            copyFromPackage(R.raw.linphonerc_factory, "linphonerc");
+        } catch (IOException ioe) {
+            Log.e(ioe);
+        }
+
+        // Create the Core and add our listener
+        mCore = Factory.instance()
+                .createCore(basePath + "/.linphonerc", basePath + "/linphonerc", this);
+        mCore.addListener(mCoreListener);
+        // Core is ready to be configured
+        configureCore();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        super.onStartCommand(intent, flags, startId);
+
+        // If our Service is already running, no need to continue
+        if (sInstance != null) {
+            return START_STICKY;
+        }
+
+        // Our Service has been started, we can keep our reference on it
+        // From now one the Launcher will be able to call onServiceReady()
+        sInstance = this;
+
+        // Core must be started after being created and configured
+        mCore.start();
+        // We also MUST call the iterate() method of the Core on a regular basis
+        TimerTask lTask =
+                new TimerTask() {
+                    @Override
+                    public void run() {
+                        mHandler.post(
+                                new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        if (mCore != null) {
+                                            mCore.iterate();
+                                        }
+                                    }
+                                });
+                    }
+                };
+        mTimer = new Timer("Linphone scheduler");
+        mTimer.schedule(lTask, 0, 20);
+
+        return START_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        mCore.removeListener(mCoreListener);
+        mTimer.cancel();
+        mCore.stop();
+        // A stopped Core can be started again
+        // To ensure resources are freed, we must ensure it will be garbage collected
+        mCore = null;
+        // Don't forget to free the singleton as well
+        sInstance = null;
+
+        super.onDestroy();
+    }
+
+    @Override
+    public void onTaskRemoved(Intent rootIntent) {
+        // For this sample we will kill the Service at the same time we kill the app
+        stopSelf();
+
+        super.onTaskRemoved(rootIntent);
+    }
+
+    private void configureCore() {
+        // We will create a directory for user signed certificates if needed
+        String basePath = getFilesDir().getAbsolutePath();
+        String userCerts = basePath + "/user-certs";
+        File f = new File(userCerts);
+        if (!f.exists()) {
+            if (!f.mkdir()) {
+                Log.e(userCerts + " can't be created.");
+            }
+        }
+        mCore.setUserCertificatesPath(userCerts);
+    }
+
+    private void dumpDeviceInformation() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("DEVICE=").append(Build.DEVICE).append("\n");
+        sb.append("MODEL=").append(Build.MODEL).append("\n");
+        sb.append("MANUFACTURER=").append(Build.MANUFACTURER).append("\n");
+        sb.append("SDK=").append(Build.VERSION.SDK_INT).append("\n");
+        sb.append("Supported ABIs=");
+        for (String abi : Version.getCpuAbis()) {
+            sb.append(abi).append(", ");
+        }
+        sb.append("\n");
+        Log.i(sb.toString());
+    }
+
+    private void dumpInstalledLinphoneInformation() {
+        PackageInfo info = null;
+        try {
+            info = getPackageManager().getPackageInfo(getPackageName(), 0);
+        } catch (PackageManager.NameNotFoundException nnfe) {
+            Log.e(nnfe);
+        }
+
+        if (info != null) {
+            Log.i(
+                    "[Service] Linphone version is ",
+                    info.versionName + " (" + info.versionCode + ")");
+        } else {
+            Log.i("[Service] Linphone version is unknown");
+        }
+    }
+
+    private void copyIfNotExist(int ressourceId, String target) throws IOException {
+        File lFileToCopy = new File(target);
+        if (!lFileToCopy.exists()) {
+            copyFromPackage(ressourceId, lFileToCopy.getName());
+        }
+    }
+
+    private void copyFromPackage(int ressourceId, String target) throws IOException {
+        FileOutputStream lOutputStream = openFileOutput(target, 0);
+        InputStream lInputStream = getResources().openRawResource(ressourceId);
+        int readByte;
+        byte[] buff = new byte[8048];
+        while ((readByte = lInputStream.read(buff)) != -1) {
+            lOutputStream.write(buff, 0, readByte);
+        }
+        lOutputStream.flush();
+        lOutputStream.close();
+        lInputStream.close();
+    }
+}

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

@@ -0,0 +1,152 @@
+package org.linphone.sample;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.widget.ImageView;
+
+import androidx.annotation.Nullable;
+import androidx.core.app.ActivityCompat;
+
+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 java.util.ArrayList;
+
+public class MainActivity extends Activity {
+    private ImageView mLed;
+    private CoreListenerStub mCoreListener;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.main);
+
+        mLed = findViewById(R.id.led);
+
+        // Monitors the registration state of our account(s) and update the LED accordingly
+        mCoreListener = new CoreListenerStub() {
+            @Override
+            public void onRegistrationStateChanged(Core core, ProxyConfig cfg, RegistrationState state, String message) {
+                updateLed(state);
+            }
+        };
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+
+        // Ask runtime permissions, such as record audio and camera
+        // We don't need them here but once the user has granted them we won't have to ask again
+        checkAndRequestCallPermissions();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        // The best way to use Core listeners in Activities is to add them in onResume
+        // and to remove them in onPause
+        LinphoneService.getCore().addListener(mCoreListener);
+
+        // Manually update the LED registration state, in case it has been registered before
+        // we add a chance to register the above listener
+        ProxyConfig proxyConfig = LinphoneService.getCore().getDefaultProxyConfig();
+        if (proxyConfig != null) {
+            updateLed(proxyConfig.getState());
+        } else {
+            // No account configured, we display the configuration activity
+            startActivity(new Intent(this, ConfigureAccountActivity.class));
+        }
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+
+        // Like I said above, remove unused Core listeners in onPause
+        LinphoneService.getCore().removeListener(mCoreListener);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+    }
+
+    @Override
+    public void onRequestPermissionsResult(
+            int requestCode, String[] permissions, int[] grantResults) {
+        // Callback for when permissions are asked to the user
+        for (int i = 0; i < permissions.length; i++) {
+            Log.i(
+                    "[Permission] "
+                            + permissions[i]
+                            + " is "
+                            + (grantResults[i] == PackageManager.PERMISSION_GRANTED
+                            ? "granted"
+                            : "denied"));
+        }
+    }
+
+    private void updateLed(RegistrationState state) {
+        switch (state) {
+            case Ok: // This state means you are connected, to can make and receive calls & messages
+                mLed.setImageResource(R.drawable.led_connected);
+                break;
+            case None: // This state is the default state
+            case Cleared: // This state is when you disconnected
+                mLed.setImageResource(R.drawable.led_disconnected);
+                break;
+            case Failed: // This one means an error happened, for example a bad password
+                mLed.setImageResource(R.drawable.led_error);
+                break;
+            case Progress: // Connection is in progress, next state will be either Ok or Failed
+                mLed.setImageResource(R.drawable.led_inprogress);
+                break;
+        }
+    }
+
+    private void checkAndRequestCallPermissions() {
+        ArrayList<String> permissionsList = new ArrayList<>();
+
+        // Some required permissions needs to be validated manually by the user
+        // Here we ask for record audio and camera to be able to make video calls with sound
+        // Once granted we don't have to ask them again, but if denied we can
+        int recordAudio =
+                getPackageManager()
+                        .checkPermission(Manifest.permission.RECORD_AUDIO, getPackageName());
+        Log.i(
+                "[Permission] Record audio permission is "
+                        + (recordAudio == PackageManager.PERMISSION_GRANTED
+                        ? "granted"
+                        : "denied"));
+        int camera =
+                getPackageManager().checkPermission(Manifest.permission.CAMERA, getPackageName());
+        Log.i(
+                "[Permission] Camera permission is "
+                        + (camera == PackageManager.PERMISSION_GRANTED ? "granted" : "denied"));
+
+        if (recordAudio != PackageManager.PERMISSION_GRANTED) {
+            Log.i("[Permission] Asking for record audio");
+            permissionsList.add(Manifest.permission.RECORD_AUDIO);
+        }
+
+        if (camera != PackageManager.PERMISSION_GRANTED) {
+            Log.i("[Permission] Asking for camera");
+            permissionsList.add(Manifest.permission.CAMERA);
+        }
+
+        if (permissionsList.size() > 0) {
+            String[] permissions = new String[permissionsList.size()];
+            permissions = permissionsList.toArray(permissions);
+            ActivityCompat.requestPermissions(this, permissions, 0);
+        }
+    }
+}

sample/app/src/main/res/layout/call.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/background">
+
+    <TextureView
+        android:id="@+id/videoSurface"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+    <TextureView
+        android:id="@+id/videoCaptureSurface"
+        android:layout_width="300dp"
+        android:layout_height="200dp"
+        android:layout_alignParentRight="true"
+        android:layout_alignParentBottom="true" />
+
+</RelativeLayout>

sample/app/src/main/res/layout/configure_account.xml

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/background">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <EditText
+            android:id="@+id/username"
+            android:hint="Username"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <EditText
+            android:id="@+id/password"
+            android:hint="Password"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <EditText
+            android:id="@+id/domain"
+            android:hint="Domain"
+            android:text="sip.linphone.org"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <RadioGroup
+            android:id="@+id/assistant_transports"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:orientation="horizontal">
+
+            <RadioButton
+                android:id="@+id/transport_udp"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_margin="5dp"
+                android:text="UDP" />
+
+            <RadioButton
+                android:id="@+id/transport_tcp"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_margin="5dp"
+                android:text="TCP" />
+
+            <RadioButton
+                android:id="@+id/transport_tls"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_margin="5dp"
+                android:checked="true"
+                android:text="TLS" />
+
+        </RadioGroup>
+
+        <Button
+            android:id="@+id/configure"
+            android:text="Connect"
+            android:layout_gravity="center"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+    </LinearLayout>
+
+</RelativeLayout>

sample/app/src/main/res/layout/launcher.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/background">
+
+    <ImageView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:src="@drawable/banner"/>
+
+    <ProgressBar
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginBottom="50dp"
+        android:indeterminate="true"/>
+
+</RelativeLayout>

sample/app/src/main/res/layout/main.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/background">
+
+    <ImageView
+        android:id="@+id/led"
+        android:layout_margin="10dp"
+        android:layout_alignParentTop="true"
+        android:layout_alignParentRight="true"
+        android:src="@drawable/led_disconnected"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+    <ImageView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:src="@drawable/banner"/>
+
+</RelativeLayout>

sample/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/primary" />
+    <foreground android:drawable="@mipmap/linphone_launcher_icon_foreground" />
+</adaptive-icon>

sample/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/primary" />
+    <foreground android:drawable="@mipmap/linphone_launcher_icon_foreground" />
+</adaptive-icon>

sample/app/src/main/res/raw/linphonerc_default

@@ -0,0 +1,20 @@
+[sip]
+contact="Linphone Android" <sip:linphone.android@unknown-host>
+use_info=0
+use_ipv6=1
+keepalive_period=30000
+sip_port=-1
+sip_tcp_port=-1
+sip_tls_port=-1
+media_encryption=none
+
+[video]
+size=vga
+
+[app]
+tunnel=disabled
+push_notification=1
+
+[misc]
+max_calls=10
+history_max_size=100

sample/app/src/main/res/raw/linphonerc_factory

@@ -0,0 +1,34 @@
+
+#
+#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
+#Because dynamic bitrate adaption can increase bitrate, we must allow "no limit"
+download_bw=0
+upload_bw=0
+force_ice_disablement=0
+
+[sip]
+guess_hostname=1
+register_only_when_network_is_up=1
+auto_net_state_mon=1
+auto_answer_replacing_calls=1
+ping_with_options=0
+use_cpim=1
+
+[video]
+displaytype=MSAndroidTextureDisplay
+
+[misc]
+enable_basic_to_client_group_chat_room_migration=0
+enable_simple_group_chat_message_state=0
+aggregate_imdn=1
+notify_each_friend_individually_when_presence_received=0
+
+[app]
+activation_code_length=4
+prefer_basic_chat_room=1
+
+[assistant]
+xmlrpc_url=https://subscribe.linphone.org:444/wizard.php

sample/app/src/main/res/values/color.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="primary">#ff5e00</color>
+    <color name="background">#444444</color>
+</resources>

sample/app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#008577</color>
+    <color name="colorPrimaryDark">#00574B</color>
+    <color name="colorAccent">#D81B60</color>
+</resources>

sample/app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Linphone Sample</string>
+</resources>

sample/app/src/main/res/values/styles.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="AppTheme" parent="@style/Theme.AppCompat">
+        <item name="android:colorPrimary">@color/primary</item>
+    </style>
+</resources>

sample/build.gradle

@@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.4.0'
+        
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

sample/gradle.properties

@@ -0,0 +1,20 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+

sample/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Sat May 04 08:50:48 CEST 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip

sample/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

sample/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

sample/settings.gradle

@@ -0,0 +1 @@
+include ':app'