fix call ringing on Android when app is in detached state

Author: Brazol

dogfooding/lib/app/app_content.dart

@@ -35,6 +35,7 @@ class _StreamDogFoodingAppContentState
 
   final _compositeSubscription = CompositeSubscription();
   bool? _microphoneEnabledBeforeInterruption;
+  bool _isInitialized = false;
 
   @override
   void initState() {
@@ -46,11 +47,14 @@ class _StreamDogFoodingAppContentState
 
     _userAuthController.addListener(() {
       if (_userAuthController.currentUser != null) {
-        _compositeSubscription.clear();
-        initPushNotificationManagerIfAvailable();
-        _handleMobileAudioInterruptions();
+        // Ensure we only initialize and observe events once
+        if (!_isInitialized) {
+          _compositeSubscription.clear();
+          initPushNotificationManagerIfAvailable();
+        }
       } else {
         _compositeSubscription.clear();
+        _isInitialized = false;
       }
     });
 
@@ -68,6 +72,10 @@ class _StreamDogFoodingAppContentState
     _observeDeepLinks();
     // Observe FCM messages.
     _observeFcmMessages();
+
+    _handleMobileAudioInterruptions();
+
+    _isInitialized = true;
   }
 
   void _handleMobileAudioInterruptions() {

packages/stream_video/lib/src/core/client_state.dart

@@ -2,6 +2,7 @@ import 'package:collection/collection.dart';
 
 import '../../stream_video.dart' show DisconnectReason, StreamVideoOptions;
 import '../call/call.dart';
+import '../lifecycle/lifecycle_state.dart';
 import '../models/user.dart';
 import '../state_emitter.dart';
 import 'connection_state.dart';
@@ -49,6 +50,9 @@ abstract class ClientState {
   /// Removes the call from the list of active calls.
   /// It won't `leave` the call, just removes it from the list.
   Future<void> removeActiveCall(Call call);
+
+  // Current app's lifecycle state.
+  StateEmitter<LifecycleState?> get appLifecycleState;
 }
 
 class MutableClientState implements ClientState {
@@ -61,7 +65,8 @@ class MutableClientState implements ClientState {
       outgoingCall = MutableStateEmitterImpl(null),
       connection = MutableStateEmitterImpl(
         ConnectionState.disconnected(user.id),
-      );
+      ),
+      appLifecycleState = MutableStateEmitterImpl(null);
 
   final StreamVideoOptions options;
 
@@ -89,6 +94,9 @@ class MutableClientState implements ClientState {
   @override
   User get currentUser => user.value;
 
+  @override
+  final MutableStateEmitter<LifecycleState?> appLifecycleState;
+
   Future<void> clear() async {
     activeCalls.value = [];
     outgoingCall.value = null;

packages/stream_video/lib/src/stream_video.dart

@@ -557,6 +557,7 @@ class StreamVideo extends Disposable {
     _logger.d(() => '[onAppState] state: $state');
     try {
       final activeCalls = _state.activeCalls.value;
+      _state.appLifecycleState.value = state;
 
       if (state.isPaused) {
         // Handle app paused state
@@ -860,11 +861,18 @@ class StreamVideo extends Disposable {
     CallPreferences? acceptCallPreferences,
   }) {
     return onRingingEvent<ActionCallAccept>(
-      (event) => _onCallAccept(
-        event,
-        onCallAccepted: onCallAccepted,
-        callPreferences: acceptCallPreferences,
-      ),
+      (event) {
+        // Ignore call accept event when app is in detached state on Android.
+        // The call flow should be handled by consuming the call like in the terminated state.
+        if (!CurrentPlatform.isAndroid ||
+            _state.appLifecycleState.value != LifecycleState.detached) {
+          _onCallAccept(
+            event,
+            onCallAccepted: onCallAccepted,
+            callPreferences: acceptCallPreferences,
+          );
+        }
+      },
     );
   }
 

packages/stream_video_flutter/CHANGELOG.md

@@ -11,6 +11,8 @@
   * Added `reconnectReason` to reconnect details for sfu logs.
   * Fixed race condition where automatic ICE restart could interfere with fast reconnect, causing subscriber video to not recover.
 * [iOS] Fixed CallKit event suppression to avoid repeated mute toggle loops.
+* [Android] Fixed issues when accepting incoming calls from detached state (app exited via back button).
+* [Android] Fixed incoming call notifications not showing when the app is in a detached state (e.g., after pressing the back button).
 
 ## 1.2.2
 

packages/stream_video_push_notification/CHANGELOG.md

@@ -5,6 +5,8 @@
 
 ### 🐞 Fixed
 * [iOS] Fixed CallKit event suppression to avoid repeated mute toggle loops.
+* [Android] Fixed issues when accepting incoming calls from detached state (app exited via back button).
+* [Android] Fixed incoming call notifications not showing when the app is in a detached state (e.g., after pressing the back button).
 
 ## 1.2.2
 * Sync version with `stream_video_flutter` 1.2.2

packages/stream_video_push_notification/android/src/main/kotlin/io/getstream/video/flutter/stream_video_push_notification/SharedPreferencesUtils.kt

@@ -51,7 +51,10 @@ fun getDataActiveCalls(context: Context?): ArrayList<Data> {
 
 fun getDataActiveCallsForFlutter(context: Context?): ArrayList<Map<String, Any?>> {
     val json = getString(context, "ACTIVE_CALLS", "[]")
-    return Utils.getGsonInstance().readValue(json, object : TypeReference<ArrayList<Map<String, Any?>>>() {})
+    
+    // If context is null, getString returns null, so we need to handle that case
+    val safeJson = json ?: "[]"
+    return Utils.getGsonInstance().readValue(safeJson, object : TypeReference<ArrayList<Map<String, Any?>>>() {})
 }
 
 fun putString(context: Context?, key: String, value: String?) {

packages/stream_video_push_notification/android/src/main/kotlin/io/getstream/video/flutter/stream_video_push_notification/StreamVideoPushNotificationPlugin.kt

@@ -375,7 +375,6 @@ override fun onDetachedFromActivityForConfigChanges() {
     }
 
     override fun onDetachedFromActivity() {
-        instance.context = null
         instance.activity = null
     }