AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mediaplayer"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.mediaplayer.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="com.example.mediaplayer.MusicService">
</service>
</application>
</manifest>
===============================================================================
布局文件
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="我是测试播放器" />
<Button
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="play"
android:text="播放了"/>
<Button
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="stop"
android:text="暂停了"/>
</LinearLayout>
====================================================
Activity 页面
package com.example.mediaplayer;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.IBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.view.Menu;
import android.view.View;
public class MainActivity extends Activity {
private MusicServiceConn conn;
private IMusicService mService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent service = new Intent(this, MusicService.class);
startService(service);
conn = new MusicServiceConn();
bindService(service, conn, BIND_AUTO_CREATE);
}
// 连接通道
class MusicServiceConn implements ServiceConnection {
public void onServiceConnected(ComponentName name, IBinder service) {
// TODO Auto-generated method stub
mService = (IMusicService) service;
}
public void onServiceDisconnected(ComponentName name) {
// TODO Auto-generated method stub
}
}
public void play(View v) {
mService.play();
}
public void stop(View v) {
mService.pause();
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
unbindService(conn);
}
}
============================================================
服务
package com.example.mediaplayer;
import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Binder;
import android.os.IBinder;
public class MusicService extends Service {
private MediaPlayer mediaPlayer;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return new Music();
}
class Music extends Binder implements IMusicService {
public void play() {
// TODO Auto-generated method stub
playMusic();
}
public void pause() {
// TODO Auto-generated method stub
pauseMusic();
}
}
public void playMusic() {
// TODO Auto-generated method stub
//MediaPlayer player = new MediaPlayer();
mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.xin);
mediaPlayer.start();
}
public void pauseMusic() {
// TODO Auto-generated method stub
mediaPlayer.pause();
}
}
=============================
接口文件
package com.example.mediaplayer;
public interface IMusicService {
public void play();
public void pause();
}
原文：http://www.cnblogs.com/yangjies145/p/6901545.html