android service 学习

构造一个Intent ，ntent intent = new Intent("org.allin.android.musicService");

"org.allin.android.musicService"是在AndroidManifest.xml文件中对service类的定义

view sourceprint?1

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把操作码放在Bundle中

Bundle bundle = new Bundle();

bundle.putInt("op", op);

intent.putExtras(bundle);

最后使用startService(intent);启动服务。

下面看看Service是怎么实现的。

MusicService.java

view sourceprint?01/**

02 * @author allin.dev

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

04 *

05 */

06public class MusicService extends Service {

07

08 private static final String TAG = "MyService";

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 arg0) {

18 return null;

19 }

20

21 @Override

22 public void onCreate() {

23 Log.v(TAG, "onCreate");

24 if (mediaPlayer == null) {

25 mediaPlayer = MediaPlayer.create(this, R.raw.tmp);

26 mediaPlayer.setLooping(false);

27 }

28 }

29

30 @Override

31 public void onDestroy() {

32 Log.v(TAG, "onDestroy");

33 if (mediaPlayer != null) {

34 mediaPlayer.stop();

35 mediaPlayer.release();

36 }

37 }

38

39 @Override

40 public void onStart(Intent intent, int startId) {

41 Log.v(TAG, "onStart");

42 if (intent != null) {

43 Bundle bundle = intent.getExtras();

44 if (bundle != null) {