如何實現即時查找，同時拖動vitamio中的seekbar

Question

當我拖動seekbar時，屏幕中顯示的框架不會改變，直到我停止拖動。在Android庫中的VideoView中，拖動搜索欄時幀可以順利變化。

Answer 1

實現SeekBar onSeekBarChangeListener

例如，

private OnSeekBarChangeListener mSeekListener = new OnSeekBarChangeListener() { 
    public void onStartTrackingTouch(SeekBar bar) { 
     mDragging = true; 
     show(3600000); 
     mHandler.removeMessages(SHOW_PROGRESS); 
     if (mInstantSeeking) 
      mAM.setStreamMute(AudioManager.STREAM_MUSIC, true); 
     if (mInfoView != null) { 
      mInfoView.setText(""); 
      mInfoView.setVisibility(View.VISIBLE); 
     } 
    } 

    public void onProgressChanged(SeekBar bar, int progress, boolean fromuser) { 
     if (!fromuser) 
      return; 

     long newposition = (mDuration * progress)/1000; 
     String time = StringUtils.generateTime(newposition); 
     if (mInstantSeeking) 
      mPlayer.seekTo(newposition); 
     if (mInfoView != null) 
      mInfoView.setText(time); 
     if (mCurrentTime != null) 
      mCurrentTime.setText(time); 
    } 

    public void onStopTrackingTouch(SeekBar bar) { 
     if (!mInstantSeeking) 
      mPlayer.seekTo((mDuration * bar.getProgress())/1000); 
     if (mInfoView != null) { 
      mInfoView.setText(""); 
      mInfoView.setVisibility(View.GONE); 
     } 
     show(sDefaultTimeout); 
     mHandler.removeMessages(SHOW_PROGRESS); 
     mAM.setStreamMute(AudioManager.STREAM_MUSIC, false); 
     mDragging = false; 
     mHandler.sendEmptyMessageDelayed(SHOW_PROGRESS, 1000); 
    } 
};