很简单,我们只要实现开机自启动即可,Android实现开机自启动可能是移动操作系统中最简单的了,我们只需要监听一个开机启动的Broadcast(广播)即可。首先写一个Receiver(即广播监听器),继承BroadcastReceiver,如下所示:
java代码:
1.
2. public class BootReceiver extends BroadcastReceiver {
3. private PendingIntent mAlarmSender;
4. @Override
5. public void onReceive(Context context, Intent intent) {
6. // 在这里干你想干的事(启动一个Service,Activity等),本例是启动一个定时调度程序,每30分钟启动一个Service去更新数据
7. mAlarmSender = PendingIntent.getService(context, 0, new Intent(context, RefreshDataService.class), 0);
8. long firstTime = SystemClock.elapsedRealtime();
9. AlarmManager am = (AlarmManager) context .getSystemService(Activity.ALARM_SERVICE); am.cancel(mAlarmSender);
10. am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, 30 * 60 * 1000, mAlarmSender);
11. }
12. }
接下来,我们只需要在应用程序配置文件AndroidManifest.xml中注册这个Receiver来监听系统启动事件即可,如下所示:
java代码:
1.
2. <receiver android:name=".service.BootReceiver">
3. <intent-filter>
4. <!-- 系统启动完成后会调用-->
5. <action android:name="android.intent.action.BOOT_COMPLETED">
6. </action>
7. </intent-filter>
8. </receiver>