Flutter video_player 报错解决 E/ExoPlayerImplInternal: Source error.

E/ExoPlayerImplInternal(19214): Source error.
E/ExoPlayerImplInternal(19214): com.google.android.exoplayer2.upstream.HttpDataSource$InvalidResponseCodeException: Response code: 500
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.DefaultHttpDataSource.open(DefaultHttpDataSource.java:300)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.DefaultDataSource.open(DefaultDataSource.java:250)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.TeeDataSource.open(TeeDataSource.java:53)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.cache.CacheDataSource.openNextSource(CacheDataSource.java:479)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.cache.CacheDataSource.open(CacheDataSource.java:308)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.StatsDataSource.open(StatsDataSource.java:83)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.source.ExtractorMediaPeriod$ExtractingLoadable.load(ExtractorMediaPeriod.java:885)
E/ExoPlayerImplInternal(19214):     at com.google.android.exoplayer2.upstream.Loader$LoadTask.run(Loader.java:381)
E/ExoPlayerImplInternal(19214):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
E/ExoPlayerImplInternal(19214):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
E/ExoPlayerImplInternal(19214):     at java.lang.Thread.run(Thread.java:761)

 

调试半天发现是initialize()函数失败报的错误。由于这个库底层是使用了另一个视频库，要调试那个库太麻烦了。想到了一个简单的处理方案，发现initialize函数报错的时候，VideoPlayerController.addListener监听会有一次触发。所以，就在被触发的时候，判断VideoPlayerController.value.initialized,是否初始化成功，如果成功就正常调用播放事件，如果失败重新初始化。经测试出现错误的时候会失败2次然后正常，可以设置一值来操作初始化的次数。

https://mp.csdn.net/editor/html/111617303

由于是取巧方案，有更好方案的同学可以交流下！！！ 下面贴出关键代码

int frequency = 0;

  @override
  void initState() {
    debugPrint("URL : ${widget._url}");
    debugPrint("isNet: ${widget._isNet}");
    frequency = 0;
    if (widget._isNet) {
      _controller = CachedVideoPlayerController.network(widget._url);
    } else {
      _controller = CachedVideoPlayerController.file(File(widget._url));
    }
    initialize();
    // 播放状态
    _controller.addListener(() {
      if (!_controller.value.initialized) {
        if (frequency < 20) {// 设置20次初始化，免得无限次导致OOM
          initialize();
        } else {
          ToastUtil.show("视频文件初始化错误，请检查文件是否错误");
        }
      } else {
        final bool isPlaying = _controller.value.isPlaying;
        if (isPlaying != _isPlaying) {
          setState(() {
            _isPlaying = isPlaying;
          });
        }
      }
    });
    super.initState();
  }

  Future initialize() async {
    frequency++;
    await _controller.initialize();
    setState(() {
      _controller.play();
    });
  }