1. fix player widget isn't throw event when switch video and release

Flutter/example/lib/demo_superplayer.dart

@@ -416,14 +416,18 @@ class _DemoSuperPlayerState extends State<DemoSuperPlayer> with TXPipPlayerResto
 
   @override
   void dispose() {
+    _releasePlayerSource();
+    super.dispose();
+  }
+
+  Future<void> _releasePlayerSource() async {
     // must invoke when page exit.
-    _controller.releasePlayer();
-    simpleEventSubscription?.cancel();
+    await _controller.releasePlayer();
     // restore current brightness to sys brightness
     SuperPlayerPlugin.restorePageBrightness();
     // unregister brightness observer
     SuperPlayerPlugin.registerSysBrightness(false);
-    super.dispose();
+    simpleEventSubscription?.cancel();
   }
 
   @override

Flutter/lib/Core/txliveplayer_controller.dart

@@ -365,7 +365,7 @@ class TXLivePlayerController extends ChangeNotifier implements ValueListenable<T
   ///
   /// 释放controller
   @override
-  void dispose() async {
+  Future<void> dispose() async {
     _isNeedDisposed = true;
     if (!_isDisposed) {
       await _eventSubscription!.cancel();

Flutter/lib/Core/txplayer_controller.dart

@@ -21,5 +21,5 @@ abstract class TXPlayerController {
   Future<int> enterPictureInPictureMode(
       {String? backIconForAndroid, String? playIconForAndroid, String? pauseIconForAndroid, String? forwardIconForAndroid});
   Future<void> exitPictureInPictureMode();
-  void dispose();
+  Future<void> dispose();
 }
\ No newline at end of file

Flutter/lib/Core/txvodplayer_controller.dart

@@ -582,7 +582,7 @@ class TXVodPlayerController extends ChangeNotifier implements ValueListenable<TX
   ///
   /// 释放controller
   @override
-  void dispose() async {
+  Future<void> dispose() async {
     _isNeedDisposed = true;
     if (!_isDisposed) {
       await _eventSubscription!.cancel();

Flutter/superplayer_widget/lib/superplayer_controller.dart

@@ -205,7 +205,7 @@ class SuperPlayerController {
           break;
         case TXVodPlayEvent.PLAY_ERR_NET_DISCONNECT:
         case TXVodPlayEvent.PLAY_EVT_PLAY_END:
-          _stop();
+          stopPlay();
           if (eventCode == TXVodPlayEvent.PLAY_ERR_NET_DISCONNECT) {
             _observer?.onError(SuperPlayerCode.NET_ERROR, FSPLocal.current.txSpwNetWeak);
           } else {
@@ -286,7 +286,7 @@ class SuperPlayerController {
   Future<void> playWithModelNeedLicence(SuperPlayerModel videoModel) async {
     this.videoModel = videoModel;
     _playAction = videoModel.playAction;
-    await resetPlayer();
+    await stopPlay();
     if (_playAction == SuperPlayerModel.PLAY_ACTION_AUTO_PLAY || _playAction == SuperPlayerModel.PLAY_ACTION_PRELOAD) {
       await _playWithModelInner(videoModel);
     }
@@ -669,23 +669,23 @@ class SuperPlayerController {
     _updatePlayerState(SuperPlayerState.INIT);
   }
 
-  void _stop() async {
-    resetPlayer();
+  Future<void> stopPlay() async {
     _updatePlayerState(SuperPlayerState.END);
+    await resetPlayer();
   }
 
   /// Release the player. Once the player is released, it cannot be used again
   /// 释放播放器，播放器释放之后，将不能再使用
   Future<void> releasePlayer() async {
-    // Remove the event listener for the widget first.
-    _observer?.onDispose();
-    playerStreamController.close();
     // If in picture-in-picture mode, the player should not be released temporarily.
     if (!TXPipController.instance.isPlayerInPip(getCurrentController())) {
-      resetPlayer();
-      _vodPlayerController.dispose();
-      _livePlayerController.dispose();
+      await stopPlay();
+      await _vodPlayerController.dispose();
+      await _livePlayerController.dispose();
     }
+    // Remove the event listener for the widget.
+    _observer?.onDispose();
+    playerStreamController.close();
   }
 
   /// return true: executed exit full screen and other operations, consumed the return event. return false: did not consume the event.

Flutter/superplayer_widget/lib/ui/superplayer_widget.dart

@@ -166,8 +166,10 @@ class SuperPlayerViewState extends State<SuperPlayerView> with WidgetsBindingObs
       _togglePlayUIState(false);
     }, () {
       // onPlayStop
-      showControlView(false);
-      _togglePlayUIState(false);
+      if (mounted) {
+        showControlView(false);
+        _togglePlayUIState(false);
+      }
     }, () {
       // onRcvFirstIframe
       _coverViewKey.currentState?.hideCover();