Fix background/locked/in-call alarm audio (v1.0.8)

- audioplayers now uses AVAudioSessionCategory.playback on iOS so alarm
  plays through speaker when app is backgrounded or screen is locked
- restartAudioEngineIfNeeded uses timerAudioActive flag so silent loop
  correctly restarts after a phone call ends
- Notifications set to timeSensitive to break through Focus/DND

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: utsapoddar

work_timer/ios/Runner/AppDelegate.swift

@@ -26,6 +26,7 @@ struct SiftActivityAttributes: ActivityAttributes {
   // Silent keep-alive loop — keeps app alive in background while timer runs
   private let audioEngine = AVAudioEngine()
   private let silentNode = AVAudioPlayerNode()
+  private var timerAudioActive = false
 
   override func application(
     _ application: UIApplication,
@@ -91,7 +92,7 @@ struct SiftActivityAttributes: ActivityAttributes {
   }
 
   private func restartAudioEngineIfNeeded() {
-    guard silentNode.isPlaying || audioEngine.isRunning else { return }
+    guard timerAudioActive else { return }
     DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
       guard let self = self else { return }
       try? AVAudioSession.sharedInstance().setActive(true)
@@ -205,6 +206,7 @@ struct SiftActivityAttributes: ActivityAttributes {
   }
 
   private func startTimerAudio() {
+    timerAudioActive = true
     guard !audioEngine.isRunning else { return }
     // Build a 0.5s silent buffer and loop it — keeps app alive in background
     // so Timer.periodic keeps firing and the alarm can play even on silent
@@ -223,6 +225,7 @@ struct SiftActivityAttributes: ActivityAttributes {
   }
 
   private func stopTimerAudio() {
+    timerAudioActive = false
     silentNode.stop()
     audioEngine.stop()
   }

work_timer/lib/services/audio.dart

@@ -21,6 +21,13 @@ Future<void> playAlarm() async {
           stayAwake: false,
         ),
       ));
+    } else if (Platform.isIOS) {
+      await _player.setAudioContext(AudioContext(
+        iOS: AudioContextIOS(
+          category: AVAudioSessionCategory.playback,
+          options: const {},
+        ),
+      ));
     }
     final custom = customRingtonePath;
     if (custom != null && custom.isNotEmpty && File(custom).existsSync()) {

work_timer/lib/services/notifications.dart

@@ -124,6 +124,7 @@ Future<void> scheduleAll(Schedule schedule, {int offsetMs = 0}) async {
           // alarm.caf is copied to Library/Sounds at app launch in AppDelegate
           sound: 'alarm.caf',
           categoryIdentifier: 'timer_alert',
+          interruptionLevel: InterruptionLevel.timeSensitive,
         ),
         macOS: const DarwinNotificationDetails(
           presentAlert: true,

work_timer/macos/Podfile.lock

@@ -6,8 +6,6 @@ PODS:
     - FlutterMacOS
   - flutter_local_notifications (0.0.1):
     - FlutterMacOS
-  - flutter_timezone (0.1.0):
-    - FlutterMacOS
   - FlutterMacOS (1.0.0)
   - shared_preferences_foundation (0.0.1):
     - Flutter
@@ -17,7 +15,6 @@ DEPENDENCIES:
   - audioplayers_darwin (from `Flutter/ephemeral/.symlinks/plugins/audioplayers_darwin/darwin`)
   - file_picker (from `Flutter/ephemeral/.symlinks/plugins/file_picker/macos`)
   - flutter_local_notifications (from `Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos`)
-  - flutter_timezone (from `Flutter/ephemeral/.symlinks/plugins/flutter_timezone/macos`)
   - FlutterMacOS (from `Flutter/ephemeral`)
   - shared_preferences_foundation (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin`)
 
@@ -28,8 +25,6 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/file_picker/macos
   flutter_local_notifications:
     :path: Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos
-  flutter_timezone:
-    :path: Flutter/ephemeral/.symlinks/plugins/flutter_timezone/macos
   FlutterMacOS:
     :path: Flutter/ephemeral
   shared_preferences_foundation:
@@ -38,8 +33,7 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   audioplayers_darwin: 835ced6edd4c9fc8ebb0a7cc9e294a91d99917d5
   file_picker: 7584aae6fa07a041af2b36a2655122d42f578c1a
-  flutter_local_notifications: 13862b132e32eb858dea558a86d45d08daeacfe7
-  flutter_timezone: d272288c69082ad571630e0d17140b3d6b93dc0c
+  flutter_local_notifications: 1fc7ffb10a83d6a2eeeeddb152d43f1944b0aad0
   FlutterMacOS: d0db08ddef1a9af05a5ec4b724367152bb0500b1
   shared_preferences_foundation: 7036424c3d8ec98dfe75ff1667cb0cd531ec82bb
 

work_timer/pubspec.yaml

@@ -2,7 +2,7 @@ name: work_timer
 description: "Work session timer with automatic break scheduling."
 publish_to: 'none'
 
-version: 1.0.7+7
+version: 1.0.8+8
 
 environment:
   sdk: ^3.11.3