带有 AlarmManager 的服务始终每分钟运行一次 [英] Service with AlarmManager running always every minute

问题描述

我正在尝试将服务设置为每 5 分钟在后台运行一次.但它的表现很奇怪:

I'm trying to set a service run every 5 minutes in background. But it's acting weird:

在主要活动的 onCreate 时，我将其安排为每 5 分钟运行一次:

At onCreate of Main activity, I'm scheduling it to run every 5 minute:

   public void scheduleAlarm(Context context) {
        Intent intent = new Intent(context, AdSyncStartReceiver.class);
        final PendingIntent pIntent = PendingIntent.getBroadcast(context, AdSyncStartReceiver.REQUEST_CODE, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        long firstMillis = System.currentTimeMillis(); // alarm is set right away
        AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        alarm.setInexactRepeating(AlarmManager.RTC_WAKEUP,
                firstMillis,
                5 * 60 * 1000, // 5 min
                pIntent);
    }

AdSyncStartReceiver.java:

AdSyncStartReceiver.java:

public class AdSyncStartReceiver extends BroadcastReceiver {

  // Triggered by the Alarm periodically (starts the service to run task)
  @Override
  public void onReceive(Context context, Intent intent) {
    Intent i = new Intent(context, AdSyncService.class);
    context.startService(i);
  }
}

AdSyncService.java

AdSyncService.java

public class AdSyncService extends IntentService {
    public AdSyncService() {
       super("AdSyncService");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
       // Do the task here
       Log.i("AdSyncService", "AdSyncService Service running");
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

清单:

<receiver
    android:name=".AdManager.AdSyncStartReceiver"
    android:process=":remote" >
</receiver>

<receiver android:name=".AdManager.BootReceiver">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

<service
    android:name=".AdManager.AdSyncService"
    android:exported="false" />

日志，它每分钟都在运行:

Logs, it's running every minute:

10-28 02:46:51.405    6820-7043/pack I/AdSyncService﹕ AdSyncService Service running
10-28 02:47:04.198    6820-7052/pack I/AdSyncService﹕ AdSyncService Service running
10-28 02:48:04.199    6820-7099/pack I/AdSyncService﹕ AdSyncService Service running
10-28 02:49:04.196    6820-7182/pack I/AdSyncService﹕ AdSyncService Service running

我试图每 5 分钟运行一次以进行测试，但它总是每分钟运行一次.有什么问题?

I'm trying to run every 5 minute to test but it's always running every minute. What's the problem?

我完全遵循了本教程:

https://guides.codepath.com/android/Starting-Background-Services#using-with-alarmmanager-for-periodic-tasks

推荐答案

试试这个，它对我有用:

Try this, it worked for me:

 alarm.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime(), 60 * 1000 * 5, pendingIntent);

这篇关于带有 AlarmManager 的服务始终每分钟运行一次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！