Added custom option to keep missed call notif upon app restart

app/src/main/java/org/linphone/compatibility/ApiTwentyThreePlus.java

@@ -23,6 +23,7 @@ import android.annotation.TargetApi;
 import android.app.NotificationManager;
 import android.content.Context;
 import android.os.PowerManager;
+import android.service.notification.StatusBarNotification;
 import org.linphone.contacts.ContactsManager;
 import org.linphone.contacts.LinphoneContact;
 import org.linphone.core.Address;
@@ -111,4 +112,8 @@ class ApiTwentyThreePlus {
 
         return true;
     }
+
+    public static StatusBarNotification[] getActiveNotifications(NotificationManager manager) {
+        return manager.getActiveNotifications();
+    }
 }

app/src/main/java/org/linphone/compatibility/Compatibility.java

@@ -22,6 +22,7 @@ package org.linphone.compatibility;
 import android.app.Activity;
 import android.app.FragmentTransaction;
 import android.app.Notification;
+import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.bluetooth.BluetoothAdapter;
 import android.content.ContentProviderClient;
@@ -30,6 +31,7 @@ import android.content.Intent;
 import android.graphics.Bitmap;
 import android.os.Build;
 import android.provider.Settings;
+import android.service.notification.StatusBarNotification;
 import org.linphone.core.Address;
 import org.linphone.mediastream.Version;
 import org.linphone.notifications.Notifiable;
@@ -309,4 +311,12 @@ public class Compatibility {
         }
         return null;
     }
+
+    public static StatusBarNotification[] getActiveNotifications(NotificationManager manager) {
+        if (Version.sdkAboveOrEqual(Version.API23_MARSHMALLOW_60)) {
+            return ApiTwentyThreePlus.getActiveNotifications(manager);
+        }
+
+        return new StatusBarNotification[0];
+    }
 }

app/src/main/java/org/linphone/notifications/NotificationsManager.java

@@ -29,6 +29,7 @@ import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.net.Uri;
+import android.service.notification.StatusBarNotification;
 import java.io.File;
 import java.util.HashMap;
 import org.linphone.LinphoneManager;
@@ -84,7 +85,19 @@ public class NotificationsManager {
         mCurrentChatRoomAddress = null;
 
         mNM = (NotificationManager) mContext.getSystemService(NOTIFICATION_SERVICE);
-        mNM.cancelAll();
+
+        if (mContext.getResources().getBoolean(R.bool.keep_missed_call_notification_upon_restart)) {
+            StatusBarNotification[] notifs = Compatibility.getActiveNotifications(mNM);
+            if (notifs != null && notifs.length > 1) {
+                for (StatusBarNotification notif : notifs) {
+                    if (notif.getId() != MISSED_CALLS_NOTIF_ID) {
+                        dismissNotification(notif.getId());
+                    }
+                }
+            }
+        } else {
+            mNM.cancelAll();
+        }
 
         mLastNotificationId = 5; // Do not conflict with hardcoded notifications ids !
 

app/src/main/res/values/non_localizable_custom.xml

@@ -132,6 +132,9 @@
     <integer name="notification_ms_on">1000</integer>
     <integer name="notification_ms_off">7000</integer>
 
+    <!-- Only for Android >= 23 -->
+    <bool name="keep_missed_call_notification_upon_restart">false</bool>
+
     <!-- Inapp -->
     <bool name="enable_in_app_purchase">false</bool>
     <!-- Notification shown before end of trial version in days -->