public class MainActivity extends Activity {

private MBind mBind;
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_main);

	Intent intent = new Intent(MainActivity.this, MyService.class);

	ServiceConnection connection = new ServiceConnection() {
		@Override
		public void onServiceDisconnected(ComponentName name) {
			// TODO Auto-generated method stub
		}
		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			// 繫結服務
			mBind = (MyService.MBind) service;
		}
	};
	// 開啟服務
	bindService(intent, connection, Service.BIND_AUTO_CREATE);

}
 

}

//Service裡面的程式碼
public class MyService extends Service {

private MBind mBind;
@Override
public void onCreate() {
	// TODO Auto-generated method stub
	super.onCreate();
	mBind = new MBind();
}
public IBinder onBind(Intent intent) {
	// TODO Auto-generated method stub
	return mBind;
}
//建立自定義的類 繼承Binder
public class MBind extends Binder {
}
 

}