服务中的Android媒体播放器不断导致ANR

Question

我有一个应该使用媒体播放器传输音频的服务流媒体发生正常但似乎发生在UI线程中即使使用AsyncTask

* 示例代码*

package com.package.app;


import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.AsyncTask;

import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

public class Mplayer extends Service {
    static boolean isPlaying = false;
    public MediaPlayer mp;
    String url = null;

    public IBinder onBind(Intent paramIntent) {
        return null;
    }

    public void onCreate() {
        super.onCreate();
        isPlaying = false;
    }

    public void onDestroy() {
        super.onDestroy();
        Toast.makeText(getApplicationContext(), "Music stopping", 1).show();

        mp.stop();
        mp.release();
        isPlaying = false;
    }

    public void onStart(Intent paramIntent, int paramInt) {
        super.onStart(paramIntent, paramInt);
        Toast.makeText(getApplicationContext(), "Getting the Best", 1).show();
        url = ((String) paramIntent.getExtras().getString("url"));

        play p = new play();
        p.execute();


    }


    public class play extends AsyncTask<Void, Integer, Void> {

        @Override
        protected void onPreExecute() {
            // TODO Auto-generated method stub
            super.onPreExecute();
            mp = new MediaPlayer();
            mp.setAudioStreamType(3);
            Log.v("service", "starting jobo");


        }

        @Override
        protected Void doInBackground(Void... params) {

            try {
                Log.v("service", url);
                mp.setDataSource(url);
                Log.v("service", "datasourse set");
                mp.prepareAsync();

                Log.v("service", "prepared");
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                Log.v("serviceError", e.toString());

            }

            mp.setOnPreparedListener(new OnPreparedListener() {

                @Override
                public void onPrepared(MediaPlayer player) {

                    Log.v("service","going in ");
                    player.getDuration();
                    player.start();
                    Log.v("duration", player.getDuration()+" ");
                    for(int i=0; i<player.getDuration(); player.getCurrentPosition())
                    {
                        //Log.v("position", "pos"+player.getCurrentPosition());
                    }


                    Log.v("service", "playing");

                }
            });

            return null;
        }

        @Override
        protected void onProgressUpdate(Integer... values) {
            // TODO Auto-generated method stub
            //super.onProgressUpdate(values);
            int n = values[0];
            Toast.makeText(getApplicationContext(), n+" time ", Toast.LENGTH_LONG).show();
        }


    }
}

此代码会导致ANR错误