Android中让Service被关闭后再重新启动
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轉載：http://blog.csdn.net/arui319
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如何做到開機啟動？
????????? 只要實現一個BroadcastReceiver，監聽手機啟動完成的事件ACTION_BOOT_COMPLETED即可。需要注意的是，好像不能用模擬器，要用手機測試。
那如何做到啟動一個Service，并且在用戶關閉后能自動又啟動了呢？
???????????? 一般的，都會在上面說到的BroadcastReceiver的實現里面，監聽手機啟動完成后，啟動一個Service，這是一般的做法。問題是，用戶可以關閉掉該Service。那么怎樣才能使它被關閉掉以后，再次啟動呢？聰明的你一定立即就想到了，如果不直接啟動Service，而是啟動一個timmer，或者alarmManager，然后每隔一段時間去啟動Service，就可以了。
[java]?view plaincopyprint?
package?com.arui.framework.android.daemonservice;????
????
import?android.app.AlarmManager;????
import?android.app.PendingIntent;????
import?android.content.BroadcastReceiver;????
import?android.content.Context;????
import?android.content.Intent;????
import?android.os.SystemClock;????
????
public?class?BootBroadcast?extends?BroadcastReceiver?{????
????
????@Override????
????public?void?onReceive(Context?context,?Intent?mintent)?{????
????
????????if?(Intent.ACTION_BOOT_COMPLETED.equals(mintent.getAction()))?{????
????????????//?啟動完成????
????????????Intent?intent?=?new?Intent(context,?Alarmreceiver.class);????
????????????intent.setAction("arui.alarm.action");????
????????????PendingIntent?sender?=?PendingIntent.getBroadcast(context,?0,????
????????????????????intent,?0);????
????????????long?firstime?=?SystemClock.elapsedRealtime();????
????????????AlarmManager?am?=?(AlarmManager)?context????
????????????????????.getSystemService(Context.ALARM_SERVICE);????
????
????????????//?10秒一個周期，不停的發送廣播????
????????????am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,?firstime,????
????????????????????10?*?1000,?sender);????
????????}????
????
????}????
}???
[java]?view plaincopyprint?
package?com.arui.framework.android.daemonservice;????
????
import?android.content.BroadcastReceiver;????
import?android.content.Context;????
import?android.content.Intent;????
????
public?class?Alarmreceiver?extends?BroadcastReceiver?{????
????@Override????
????public?void?onReceive(Context?context,?Intent?intent)?{????
????
????????if?(intent.getAction().equals("arui.alarm.action"))?{????
????????????Intent?i?=?new?Intent();????
????????????i.setClass(context,?DaemonService.class);????
????????????//?啟動service?????
????????????//?多次調用startService并不會啟動多個service?而是會多次調用onStart????
????????????context.startService(i);????
????????}????
????}????
}???
[java]?view plaincopyprint?
package?com.arui.framework.android.daemonservice;????
????
import?android.app.Service;????
import?android.content.Intent;????
import?android.os.IBinder;????
import?android.util.Log;????
????
public?class?DaemonService?extends?Service?{????
????
????@Override????
????public?IBinder?onBind(Intent?intent)?{????
????????return?null;????
????}????
????
????@Override????
????public?void?onCreate()?{????
????????super.onCreate();????
????????Log.v("=========",?"*****?DaemonService?*****:?onCreate");????
????}????
????
????@Override????
????public?void?onStart(Intent?intent,?int?startId)?{????
????????Log.v("=========",?"*****?DaemonService?*****:?onStart");????
????????//?這里可以做Service該做的事????
????}????
}????
[java]?view plaincopyprint?
<receiver?????
????android:name="?com.arui.framework.android.daemonservice.BootBroadcast"????
????android:permission="android.permission.RECEIVE_BOOT_COMPLETED">????
????<intent-filter>????
????????<action?android:name="android.intent.action.BOOT_COMPLETED"?/>????
????</intent-filter>????
</receiver>????
<receiver?????
????android:name="?com.arui.framework.android.daemonservice.Alarmreceiver"?>????
????<intent-filter>????
????????<action?android:name="arui.alarm.action"?/>????
????</intent-filter>????
</receiver>????
??????<service????
??????????android:name="?com.arui.framework.android.daemonservice.DaemonService"?>????
??????</service>????
轉載于:https://my.oschina.net/u/1777508/blog/308505
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