带有 MediaController 的 Android VideoView - 如何在流式传输时禁用搜索

Question

如果从设备播放视频，媒体播放器知道它的确切长度，并且通过移动媒体 Controller 搜索栏中的拇指快进视频是无缝的。如果从 Internet 播放流媒体视频，则视频长度未知，使用拇指搜索会导致视频停止响应。

我想知道如何在视频完全缓冲之前禁用拇指？然后显示它并启用快进。

以下是我的视频播放器代码:

    setContentView(R.layout.layout_fragment_video_fullscreen);
    vvVideoFullscreen = (VideoView) findViewById(R.id.vvVideoFullscreen);
    rlVideoFullscreen = (RelativeLayout) findViewById(R.id.rlVideoFullscreen);
    videoUri = Uri.parse(video.getUrl());
    vvVideoFullscreen.setVideoURI(videoUri);
    mediaController = new MediaController(this);
    mediaController.setMediaPlayer(vvVideoFullscreen);
    mediaController.setAnchorView(vvVideoFullscreen);
    vvVideoFullscreen.setMediaController(mediaController);
    vvVideoFullscreen.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {

        @Override
        public void onPrepared(MediaPlayer mp) {
            progressDialog.dismiss();
            rlVideoFullscreen.setVisibility(View.VISIBLE);
            vvVideoFullscreen.start();
            mediaController.show(3000);
        }
    });

vVideoFullscreen.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

        @Override
        public void onCompletion(MediaPlayer mp) {
            finish();

        }
    });

    vvVideoFullscreen.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_UP) {
                if (vvVideoFullscreen.isPlaying()) {

                    vvVideoFullscreen.pause();
                    mediaController.hide();

                } else {

                    vvVideoFullscreen.start();
                    mediaController.show();

                }

            }
            return true;
        }

    }); // End of setOnTouchListener

Answer 1

您是否尝试过将 onBufferingUpdateListener() 添加到您的 mediaplayer？从文档中说:

public abstract void onBufferingUpdate (MediaPlayer mp, int percent)

Called to update status in buffering a media stream received through progressive HTTP download. The received buffering percentage indicates how much of the content has been buffered or played. For example a buffering update of 80 percent when half the content has already been played indicates that the next 30 percent of the content to play has been buffered.

因此，当以 100% 调用此回调时，您知道您的视频已完全缓冲。

要禁用所有播放控件，您只需在缓冲完成时调用 mediaController.setMediaPlayer(...) 即可。

如果您只想禁用搜索拇指，我建议实现您自己的 MediaController.MediaPlayerControlInterface 并将所有调用路由到您的 MediaPlayer 对象。然后可以通过使 canSeekForward() 和 canSeekBackward() 方法返回 false 并使 seekTo(int pos) 方法关闭来禁用搜索在您的 MediaPlayer 上做任何事情。