[BUG] Performance issue on Android when using full screen mode

[freewheelnat]

Describe the bug Performance issue on Android when using full screen mode.

We have observed 3 issues:

• sometimes, the video in full screen isn't full screen. It feels like an animation has stopped maybe. See screenshot
• sometimes, when existing full screen, the video space on the initial screen is just completely blank.
• sometimes, it freezes for a short while during the transition to/from full screen.

To Reproduce Switch between normal mode and full screen mode on Android device several times.

Expected behavior The video is full screen when selecting full screen. The video is showing when exiting full screen

Screenshot

Technical Details: Issue observed frequently on following devices:

• Pixel 4, Android 12
• Xiaomi Mi A2 Android 10

Issue observed rarely on following device:

• Xiaomi Mi 10T, Android 10

Code youtube_player_iframe: ^2.2.2

class VideoPlayerViewYouTubeImpl extends StatefulWidget {
 const VideoPlayerViewYouTubeImpl({
   Key? key,
   required this.videoId,
   required this.errorView,
   required this.loadingView,
 }) : super(key: key);

 final String videoId;
 final Widget errorView;
 final Widget loadingView;

 @override
 _VideoPlayerViewYouTubeImplState createState() =>
     _VideoPlayerViewYouTubeImplState();
}

class _VideoPlayerViewYouTubeImplState
   extends State<VideoPlayerViewYouTubeImpl> {
 late YoutubePlayerController _controller;

 @override
 void initState() {
   super.initState();
   _controller = YoutubePlayerController(
     initialVideoId: widget.videoId,
     params: const YoutubePlayerParams(
       showFullscreenButton: true,
       privacyEnhanced: true,
       strictRelatedVideos: true,
       useHybridComposition: false,
     ),
   );
   _controller.onEnterFullscreen = () {
     SystemChrome.setPreferredOrientations([
       DeviceOrientation.landscapeLeft,
       DeviceOrientation.landscapeRight,
     ]);
   };
 }

 @override
 void dispose() {
   _controller.close();
   super.dispose();
 }

 @override
 Widget build(BuildContext context) {
   const player = YoutubePlayerIFrame(gestureRecognizers: {});
   return YoutubePlayerControllerProvider(
     // Passing controller to widgets below.
     controller: _controller,
     child: Scaffold(
       body: Stack(
         children: [
           player,
           Positioned.fill(
             child: YoutubeValueBuilder(
               controller: _controller,
               builder: (context, value) {
                 if (value.hasError) {
                   return widget.errorView;
                 } else {
                   return AnimatedCrossFade(
                     firstChild: const SizedBox.shrink(),
                     secondChild: widget.loadingView,
                     crossFadeState: value.isReady
                         ? CrossFadeState.showFirst
                         : CrossFadeState.showSecond,
                     duration: const Duration(milliseconds: 300),
                   );
                 }
               },
             ),
           ),
         ],
       ),
     ),
   );
 }
}

[ducNN93]

yes this happened on my android device too, enter fullscreen several time then the video player show like the picture below My device : Nokia 7.2 Android: 11

• This happened on fullscreen landscape mode,

[jsanz1209]

+1 Same behavior here

[alexaung]

Sam behavior here.