MediaPlayer.prepare()

[a220315410]

    ......
    mMediaPlayer = new MediaPlayer();
    initialMediaPlayerData();
    ......

private void initialMediaPlayerData() {
		Log.e(TAG, "initialMediaPlayerData");
		try {
			Log.d(MYTAG,"mMediaPlayer  prepare !");
			mMediaPlayer.setDataSource(parentContext, mSelectedUri);
			mMediaPlayer.setOnCompletionListener(listener);
			mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
			mMediaPlayer.prepare();
		} 
		catch (IOException e) 
		{
			Log.e("MusicPicker", "Unable to play track", e);
		}
	}

以上的代码在我的一个APK中，现在发现一个奇怪的问题：
在AP第一次运行的时候，一切正常。
按back建关闭AP以后，再次启动AP的时候，运行到mMediaPlayer.prepare()函数的时候，发生IllegalStateException异常，求解释～

[一口三个汉堡]

mMediaPlayer并没有关闭。。。。。

[lizhengjun2010]

When a MediaPlayer object is just created using new or after reset() is called, it is in the Idle state; and after release() is called, it is in the End state. Between these two states is the life cycle of the MediaPlayer object.

[a220315410]

有关闭的。

 public void onStop()
{
mMediaPlayer.stop();
			mMediaPlayer.release();
			mMediaPlayer = null;
}
    

[lizhengjun2010]

MediaPlayer 采用new 或者reset()创建时，处于空闲状态
只有当调用release()后MediaPlayer才关闭

所以再activity关闭时,在onDestory()中 要讲MediaPlayer 关闭，即调用media.release();

[davidge333]

同问 有解决方法了吗