Android服務：seekbar無法正常工作

我正在使用管理seekbar的Android服務。下面是代碼（我只是把有關搜索條的代碼）：Android服務：seekbar無法正常工作

public class MediaPlayerService extends Service implements 
     Runnable, 
     SeekBar.OnSeekBarChangeListener { 

    private MediaPlayer mediaPlayer = null; 
    private AudioManager audioManager; 
    private SeekBar seekBarTime; 

    @Override 
    public void onCreate() { 

     //SET SEEKBAR 
     LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); 
     View layout = inflater.inflate(R.layout.play_song , null); 
     seekBarTime = (SeekBar) layout.findViewById(R.id.seekBarTime); 
     seekBarTime.setOnSeekBarChangeListener(this); 
     Thread thread = new Thread(this); 
     thread.start(); 
    } 

    public void run() { 

     if(mediaPlayer != null) { 
      int currentPosition = 0; 
      int total = mediaPlayer.getDuration(); 
      seekBarTime.setMax(total); 
      while (currentPosition < total && mediaPlayer != null) { 
       try { 
        Thread.sleep(1000); 
        currentPosition = mediaPlayer.getCurrentPosition(); 
       } catch (InterruptedException e) { 
        return; 
       } catch (Exception e) { 
        return; 
       } 
       seekBarTime.setProgress(currentPosition); 
      } 
     } 
    } 

    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 
     Log.w("disgustingapps", "seekbar"); 
     if (fromUser == true) { 
      mediaPlayer.seekTo(progress); 
     } 
    } 

    public void onStartTrackingTouch(SeekBar seekBar) { 
     // TODO Auto-generated method stub 

    } 

    public void onStopTrackingTouch(SeekBar seekBar) { 
     // TODO Auto-generated method stub 

    } 
}

的問題有兩個。我將嘗試用我的英語不好解釋： 1）我想讓服務自動更新seekbar以顯示歌曲的當前時間（mediaPlayer.getCurrentPosition（）） 2）我希望用戶被允許移動搜索欄以便在歌曲的時間間移動這兩件事都不起作用。似乎seekbar與代碼完全「獨立」。我的意思是：光標根本不移動，而且如果用戶移動它，則歌曲繼續而不做任何事情。請幫我預先感謝您

來源

2013-01-03 user1315621