Show call notification only on Android APIs prior to 31

Call notifications are not needed for 31+ APIs because of built in Android privacy indicators.
As a result, there is no need to start NotificationRemovalService on 31+ APIs. So the following crash should not happen: "Not allowed to start service Intent ... NotificationRemovalService ... app is in background" anymore.

MOB-3358

Author: andrews-moc

widgetssdk/src/main/java/com/glia/widgets/core/notification/device/NotificationManager.kt

@@ -58,6 +58,11 @@ internal class NotificationManager(private val applicationContext: Application)
     }
 
     override fun showAudioCallNotification() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            // Android APIs 31+ have built in privacy indicators for microphone and camera
+            // See https://source.android.com/docs/core/permissions/privacy-indicators
+            return
+        }
         if (areNotificationsEnabledForChannel(NotificationFactory.NOTIFICATION_CALL_CHANNEL_ID)) {
             notificationManager.notify(
                 NotificationFactory.CALL_NOTIFICATION_ID,
@@ -67,6 +72,11 @@ internal class NotificationManager(private val applicationContext: Application)
     }
 
     override fun showVideoCallNotification(isTwoWayVideo: Boolean, hasAudio: Boolean) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            // Android APIs 31+ have built in privacy indicators for microphone and camera
+            // See https://source.android.com/docs/core/permissions/privacy-indicators
+            return
+        }
         if (areNotificationsEnabledForChannel(NotificationFactory.NOTIFICATION_CALL_CHANNEL_ID)) {
             notificationManager.notify(
                 NotificationFactory.CALL_NOTIFICATION_ID,

widgetssdk/src/main/java/com/glia/widgets/di/Dependencies.java

@@ -9,6 +9,7 @@
 import androidx.core.content.ContextCompat;
 import androidx.lifecycle.Lifecycle;
 
+import com.glia.androidsdk.Glia;
 import com.glia.widgets.GliaWidgetsConfig;
 import com.glia.widgets.StringProvider;
 import com.glia.widgets.StringProviderImpl;
@@ -251,7 +252,9 @@ private static void initApplicationLifecycleObserver(
         lifecycleManager.addObserver((source, event) -> {
             if (event == Lifecycle.Event.ON_STOP) {
                 chatBubbleController.onApplicationStop();
-                notificationManager.startNotificationRemovalService();
+                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S && Glia.isInitialized()) {
+                    notificationManager.startNotificationRemovalService();
+                }
             } else if (event == Lifecycle.Event.ON_DESTROY) {
                 chatBubbleController.onDestroy();
             }