android 利用service来播放音乐

mainifest.xml

<?xml version="1.0" encoding="utf-8"?>

main.xml

<?xml version="1.0" encoding="utf-8"?>

java

package com.yarin.android.Examples_03_03;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class Activity01 extends Activity{public void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);//从main.xml布局中获得Button对象Button button_start = (Button)findViewById(R.id.start);Button button_stop = (Button)findViewById(R.id.stop);//设置按钮（Button）监听button_start.setOnClickListener(start);        button_stop.setOnClickListener(stop);}//开始按钮private OnClickListener start = new OnClickListener()    {        public void onClick(View v)        {           //开启Service            startService(new Intent("com.yarin.Android.MUSIC"));        }    };   //停止按钮    private OnClickListener stop = new OnClickListener()    {        public void onClick(View v)        {        //停止Service            stopService(new Intent("com.yarin.Android.MUSIC"));               }    };}

package com.yarin.android.Examples_03_03;import android.app.Service;import android.content.Intent;import android.media.MediaPlayer;import android.os.IBinder;public class MusicService extends Service{//MediaPlayer对象private MediaPlayerplayer;public IBinder onBind(Intent arg0){return null;}public void onStart(Intent intent, int startId){super.onStart(intent, startId);//这里可以理解为装载音乐文件player = MediaPlayer.create(this, R.raw.test);//开始播放player.start();}public void onDestroy(){super.onDestroy();//停止音乐-停止Serviceplayer.stop();}}

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