Android MediaPlayer 播放prepareAsync called in state 8解决办法

private void playAudio(String audioUri){    
Uri uri = Uri.parse(audioUri); 
mMediaPlayer = MediaPlayer.create(getApplicationContext(), uri);
try {
//在播放之前先判断playerMusic是否被占用，这样就不会报错了
        if (mMediaPlayer != null ) {
         mMediaPlayer.stop();
        }
mMediaPlayer.prepare();
mMediaPlayer.start(); 
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}

try {
  if (!isPlaying) {
   isPlaying = true ;
   //装载资源
   mediaPlayer = MediaPlayer.create(PlaySDMp3Activity. this , R.raw.trouble);
   isReleased = false ;
   mediaPlayer.setLooping( true );
   mediaPlayer.start();
   mTextView.setText( "当前正在播放音乐！" );
  }
} catch (IllegalStateException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
}