java - Android 类次变更提醒

Question

我正在一个 Android 应用程序中工作，我想在换类期间显示警报，假设每 8 小时后显示一次。我该怎么做？

我已经尝试了很多，都在解决一些重大问题。我可以获得教程或提示我如何做到这一点吗？我正在给出我已经尝试过的东西

    public class ShiftConfirmService extends Service 
       {

        private NotificationManager mManager;

        @Override
      public IBinder onBind(Intent arg0)
       {
       // TODO Auto-generated method stub
            return null;
      }

         @Override
        public void onCreate() 
       {
    // TODO Auto-generated method stub  
    super.onCreate();
 }

   @SuppressWarnings("static-access")
     @Override
     public void onStart(Intent intent, int startId)
      {
   super.onStart(intent, startId);
   Intent intent1 = new Intent(this, ShiftAlert.class);
   intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
   startActivity(intent1);

}

@Override
public void onDestroy() 
{
    // TODO Auto-generated method stub
    super.onDestroy();
}

}

Answer 1

您可以使用ALARM MANAGER

还有一些教程如下

1) http://www.techrepublic.com/blog/android-app-builder/use-androids-alarmmanager-to-schedule-an-event/

2) http://www.javacodegeeks.com/2012/09/android-alarmmanager-tutorial.html

3)您可以尝试此代码 fragment 进行24小时测试

Intent myIntent = new Intent(ThisApp.this , myService.class);     
       AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
       pendingIntent = PendingIntent.getService(ThisApp.this, 0, myIntent, 0);

       Calendar calendar = Calendar.getInstance();
           calendar.set(Calendar.HOUR_OF_DAY, 12);
       calendar.set(Calendar.MINUTE, 00);
       calendar.set(Calendar.SECOND, 00);

      alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 24*60*60*1000 , pendingIntent);  //set repeating every 24 hours

4) http://learnandroideasily.blogspot.in/2013/05/android-alarm-manager_31.html

5) http://khurramitdeveloper.blogspot.in/2013/06/android-alarm-manager-to-start-service.html