Question

我的应用是使用Service和MediaPlayer播放音乐，但在尝试重置媒体播放器以播放下一首曲目时遇到问题。虽然我在另一个线程中调用它，但重置mediaplayer需要很长时间并导致UI快速冻结一段时间。

这是我用来从列表中播放曲目的代码片段

private void playTrack(int position) {
    if (!isAudioFocusAvailable())
        return;
    try {
        sendBufferingStarted();
        // Problem is here
        mPlayer.reset();
        mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        mPlayer.setDataSource(mTracks.get(mCurrentPosition).getUrl());
        mIsBuffering = true;
        mPlayer.prepareAsync();
        mIsPaused = false;
        acquireWifiWakeLock();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IllegalStateException e) {
        e.printStackTrace();
    } catch (IOException e) {
    }

}

避免重置和UI冻结问题的任何建议

Answer 1

尝试此代码可能有所帮助

public void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);

    if(!isPlaying){
        mPlayer = new MediaPlayer();
        mPlayer.setDataSource(soundid[position]);
        mPlayer.prepare();
        mPlayer.start();
        isPlaying = true; // reproducir es true

    }else{

        isPlaying = false;
        mPlayer.stop();
        mPlayer.reset();
        mPlayer.setDataSource(soundid[position]);
        mPlayer.prepare();
        mPlayer.start();
        isPlaying = true;

    }

    mPlayer.setOnCompletionListener(new OnCompletionListener() {

        public void onCompletion(MediaPlayer mPlayer) {
            mPlayer.release();
            isPlaying = false;
        }

    });
}

MediaPlayer重置需要很长时间

1 个答案: