如何在android生命周期观察器中获取上下文和视图？

Question

我想把处理exoplayer的代码放到一个lifecycleOberserver类中，但是要初始化一个exoplayer，我需要这样写代码

    void prepareExoPlayer(Context context, PlayerView exoPlayerView) {
        if (context == null || exoPlayerView == null) {
            return;
        }
        if (player == null) {
            TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory();
            TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
            player = ExoPlayerFactory.newSimpleInstance(context, trackSelector);
            ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
            DataSource.Factory dataSourceFactory =
                    new DefaultDataSourceFactory(
                            context,
                            Util.getUserAgent(
                                    context,
                                    context.getString(R.string.app_name)
                            )
                    );
            MediaSource videoSource = new ExtractorMediaSource
                    .Factory(dataSourceFactory)
                    .setExtractorsFactory(extractorsFactory)
                    .createMediaSource(videoUri);
            player.prepare(videoSource);
        }
        player.clearVideoSurface();
        player.setVideoSurfaceView((SurfaceView) exoPlayerView.getVideoSurfaceView());
        player.seekTo(player.getCurrentPosition() + 1);
        exoPlayerView.setPlayer(player);
    }

所以我必须在生命周期Oberserver 中获取上下文和视图，但我找不到这样做的方法，有人可以帮助我吗？

Answer 1

您可以使用诸如活动参数的 lifeCycleObserver 类构造函数

lifeCycleObserver(yourActivity param){
}

然后使用此参数作为上下文。