MediaPlayer mPlayer = new MediaPlayer();
mPlayer.setOnCompletionListener(new OnCompletionMusic());//等待音乐播放完毕
//mPlayer.setOnErrorListener(new one rrorMusic());//监听到音乐播放出错时,因为出错后也会收到播放完毕的消息,所以不需要监听出错消息.
 
class one rrorMusic implements one rrorListener
{
 public boolean one rror(MediaPlayer mp, int what, int extra)
 {
  return false;
 }
}

class OnCompletionMusic implements OnCompletionListener
{
 public void onCompletion(MediaPlayer mp) 
 {//播出完毕事件
 }
}
 
void OnPlay()
{
 if(!mPlayer.isPlaying())
  mPlayer.start();
}
 
void OnPause()
{
 if(mPlayer.isPlaying())
  mPlayer.pause();
}
 
void OnPlayFile()//打开新的音乐文件播放
{
 try
 {
  mPlayer.reset();
  mPlayer.setDataSource(szFile);
  mPlayer.prepare();
 }
 catch(IOException e)
 {
  e.printStackTrace();
 }
 mPlayer.start();
}
 
String GetTotalTime()
{
   int timer = main.mPlayer.getDuration()/1000;
   String stimer = "" + timer/60%60/10 + timer/60%60%10 + ":" + timer%60/10 + timer%10;
   return stimer;
}
 
String GetTrackerTime()
{
   int timer = main.mPlayer.getCurrentPosition()/1000;
   String stimer = "" + timer/60%60/10 + timer/60%60%10 + ":" + timer%60/10 + timer%10;
   return stimer;
}