7

对于自定义视频视图，我必须覆盖 MediaController（更改按钮的设计并连接到按钮暂停/播放选择器）。情况是这样的：将视频暂停并打开应用程序，然后再次恢复，视频再次开始播放，而不是从暂停的点开始播放，因此出现了问题：如何让视频开始播放从那个地方，它停止的地方？我需要在 VideoActivity 中进行哪些更改？

public class VideoActivity extends Activity {

    VideoView videoView;

    VkMediaController mc;

    private static final String CURRENT = "duration";

    private static final String URL = "url";

    private Uri mURI;

    private int mCurrentPosition = -1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.video_view_player);
        videoView = (VideoView) findViewById(R.id.videoViewplayer);
        mc = new VkMediaController(this);
        mURI = getIntent().getData();
        if (savedInstanceState != null) {
            mURI = Uri.parse(savedInstanceState.getString(URL));
            mCurrentPosition = savedInstanceState.getInt(CURRENT);

        }
        videoView.setMediaController(mc);
        videoView.setVideoURI(mURI);
        videoView.requestFocus();
    }

    @Override
    protected void onStart() {
        super.onStart();
        videoView.start();
        if (mCurrentPosition != -1) {
            videoView.seekTo(mCurrentPosition);
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        outState.putInt(CURRENT, videoView.getCurrentPosition());
        outState.putString(URL, mURI.toString());
        super.onSaveInstanceState(outState);
    }
}
4

3 回答 3

22

我认为问题是videoView.getCurrentPosition()当你调用 inside 时总是返回 0 onSaveInstanceState(Bundle outState)，因为当时视频已经重置，所以调用videoView.getCurrentPosition()when onPause()，这将返回你想要的值。

于 2012-09-27T08:54:33.260 回答
2

我有同样的问题。我以为我做的一切都是正确的，但它没有用。然后我只是更改了顺序，所以我先打电话VideoView.seekTo()，然后再打电话VideoView.start()。那行得通。我也有VideoView.requestFocus()，但我不知道这是否重要。

videoPlayer.requestFocus();
videoPlayer.seekTo(position);
videoPlayer.start();

因此，如果您确定您的位置变量具有正确的值，这可能就是您的答案。未加载视频时，您可能无法搜索。像这样实现 onPreparedListener：

public class VideoActivity extends Activity implements OnPreparedListener {
    VideoView videoPlayer;
    int position;

    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if(savedInstanceState!=null){
    position=savedInstanceState.getInt("pos")
    }
    // setting up the videoview
    setContentView(R.layout.activity_video);
    getIntent().getExtras().getString("url");
    Uri videouri = Uri.parse(getIntent().getExtras().getString("url"));
    videoPlayer = (VideoView) findViewById(R.id.videoView);
    videoPlayer.setOnPreparedListener(this);
    videoPlayer.setKeepScreenOn(true);
    videoPlayer.setVideoURI(videouri);

    }

    /**
     * Start the plaback when the video is loaded
     * 
     * @param mp
     * @see android.media.MediaPlayer.OnPreparedListener#onPrepared(android.media.MediaPlayer)
     */
    public void onPrepared(MediaPlayer mp) {
    //this is a TextView infront of the VideoView which tells the User the Video is loading- hide that
    findViewById(R.id.tv_video_load).setVisibility(View.GONE);

    videoPlayer.requestFocus();
    videoPlayer.seekTo(position)
    videoPlayer.start();
}
}
于 2012-09-27T09:01:37.680 回答
1

LandScape LifeCycle 演示的肖像

    VideoView videoView;
    int lastPosition;
    int Video_STATE_POSITION  = 0;

  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (savedInstanceState != null)
        {
            String message = savedInstanceState.getString("message");
            Toast.makeText(this, message, Toast.LENGTH_LONG).show();

            lastPosition=savedInstanceState.getInt("STATE_POSITION");
            videoView.seekTo(lastPosition);
            videoView.start();
            Log.e("Keshav", "MainActivity onCreate() is called  savedInstanceState  lastPosition->" + lastPosition);
        }
}

  @Override
    public void onSaveInstanceState(Bundle outState)
    {
        outState.putString("message", "This is my message to be reloaded");
        outState.putInt("STATE_POSITION", Video_STATE_POSITION);
        super.onSaveInstanceState(outState);
    }

 @Override
    protected void onPause() {
        super.onPause();

        Video_STATE_POSITION = videoView.getCurrentPosition();

        Log.e("Keshav", "MainActivity onPause is called  ->" +Video_STATE_POSITION);
    }
于 2019-08-30T11:14:06.817 回答