1: private Handler handler = new Handler() {
   2:  
            
   3:         public void handleMessage(Message msg) {
            
   4:             //更新進(jìn)度條
            
   5:             progressBar.setProgress(progressState);
            
   6:         };
            
   7:     };
            
   8:  
            
   9: /**
            
  10:      * 播放
            
  11:      * 
            
  12:      * @param filePath
            
  13:      *            文件路徑
            
  14:      */
            
  15:     private void playMusic(String filePath) {
            
  16:         try {
            
  17:             progressState = 0;
            
  18:             progressBar.setProgress(0);
            
  19:             // 重置
            
  20:             mediaPlayer.reset();
            
  21:             // 設(shè)置數(shù)據(jù)源
            
  22:             mediaPlayer.setDataSource(filePath);
            
  23:             // 準(zhǔn)備播放
            
  24:             mediaPlayer.prepare();
            
  25:             // 獲取播放時(shí)長(zhǎng)
            
  26:             length = mediaPlayer.getDuration();
            
  27:             progressBar.setMax(length / 1000);
            
  28:             // 播放
            
  29:             mediaPlayer.start();
            
  30:             new Thread(new ProcessBarRefresh()).start();
            
  31:             // 設(shè)置播放完畢監(jiān)聽
            
  32:             mediaPlayer.setOnCompletionListener(new OnCompletionListener() {
            
  33:                 @Override
            
  34:                 public void onCompletion(MediaPlayer mp) {
            
  35:                     nextMusic();
            
  36:                 }
            
  37:             });
            
  38:  
            
  39:         } catch (Exception e) {
            
  40:             displayToast(e.getMessage());
            
  41:         }
            
  42:     }
            
  43:     
            
  44:     /**
            
  45:      * 更新進(jìn)度條
            
  46:      * @author 張漢國(guó)
            
  47:      */
            
  48:     class ProcessBarRefresh implements Runnable{
            
  49:  
            
  50:         @Override
            
  51:         public void run() {
            
  52:             while(isPlaying){
            
  53:                 progressState = mediaPlayer.getCurrentPosition()/1000;
            
  54:                 handler.sendMessage(handler.obtainMessage());
            
  55:             }
            
  56:         }
            
  57:         
            
  58:     }