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PlayMusicActivity.java

package gogler.myandroid;

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 PlayMusicActivity extends Activity {
    /** Called when the activity is first created. */
 
 
    @Override
    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.playbt);
        Button button_stop = (Button)findViewById(R.id.stopbt);
        //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("android.intent.action.MUSIC"));
          }
      };
     //停止按钮
      private OnClickListener stop = new OnClickListener()
      {
          public void onClick(View v)
          {
           //停止Service
              stopService(new Intent("android.intent.action.MUSIC"));      

          }
      };
}

MusicPlayerService .java

package gogler.myandroid;

import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.IBinder;

public class MusicPlayerService extends Service {

 private MediaPlayer player;

 @Override
 public IBinder onBind(Intent intent) {
  // TODO Auto-generated method stub
  return null;
 }

 @Override
 public void onDestroy() {
  // TODO Auto-generated method stub
  super.onDestroy();
  // 3、停止音乐
  player.stop();
 }

 @Override
 public void onStart(Intent intent, int startId) {
  // TODO Auto-generated method stub
  super.onStart(intent, startId);
  // 1、加载音乐
  // 2、播放音乐
  player = MediaPlayer.create(this, R.raw.tommaimairubsaktee);
  player.start();
 }

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="gogler.myandroid"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="1" />

    <application
        android:icon="@drawable/russia"
        android:label="@string/app_name" >
        <activity
            android:icon="@drawable/russia"
            android:label="@string/app_name"
            android:name=".PlayMusicActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
       
            <service
                android:name=".MusicPlayerService">
                <intent-filter>
                    <action android:name="android.intent.action.MUSIC"/>
                </intent-filter>
            </service>
    </application>

</manifest>

代码打包下载

 http://download.csdn.net/download/gogler/3727632