android service 学习

核心提示：先创建一个IMyRemoteService.aidl文件view sourceprint?1package org.allin.android.remote;2interface IMusicControlService{3 void play();4 void stop();5 void pause();6}如果你正

先创建一个IMyRemoteService.aidl文件

view sourceprint?1package org.allin.android.remote;

2interface IMusicControlService{

3 void play();

4 void stop();

5 void pause();

6}

如果你正在使用eclipse的Android插件，则它会根据这个aidl文件生成一个Java接口类。生成的接口类中会有一个内部类Stub类，你要做的事就是去继承该Stub类：

view sourceprint?01/**

02 * @author allin.dev

03 * http://allin.cnblogs.com/

04 *

05 */

06public class RemoteMusicService extends Service {

07

08 private static final String TAG = "RemoteMusicService";

09 private MediaPlayer mediaPlayer;

10

11 /*

12 * (non-Javadoc)

13 *

14 * @see android.app.Service#onBind(android.content.Intent)

15 */

16 @Override

17 public IBinder onBind(Intent intent) {

18 return binder;

19 }

20

21 private final IMusicControlService.Stub binder = new IMusicControlService.Stub() {

22

23 @Override

24 public void stop() throws RemoteException {

25 Log.d(TAG,"stop....");

26 if (mediaPlayer != null) {

27 mediaPlayer.stop();

28 try {

29 // 在调用stop后如果需要再次通过start进行播放,需要之前调用prepare函数

30 mediaPlayer.prepare();

31 } catch (IOException ex) {

32 ex.printStackTrace();

33 }

34 }

35

36 }

37

38 @Override

39 public void play() throws RemoteException {

40 Log.d(TAG,"play....");

41 if (mediaPlayer == null) {

42 mediaPlayer = MediaPlayer.create(RemoteMusicService.this,

43 R.raw.tmp);

44 mediaPlayer.setLooping(false);

45 }