AlarmManager不会一直开火

Question

我已经完成了关于这个主题的所有帖子，我觉得我的代码尽可能接近发布的解决方案。但我的警惕者并没有始终如一地开始。如果时间是过去的，它没有问题，并且事件记录在我的日志文件中。它永远不会在第二天发生。有时是在当天几小时之外的活动。

以下是创建AlarmManager的代码：

public void createNotifications(ArrayList alertList){


   ResortActivity activity;

   int arryLen = alertList.size();
   for (int i = 0; i < arryLen; ++i){

     activity = (ResortActivity) alertList.get(i);
     if (activity.getActAlert().equals("Y")){
         //Loop through array list checking if alert set to Y if so create alert

         AlarmManager alarmManager = (AlarmManager) getApplicationContext().getSystemService(getBaseContext().ALARM_SERVICE);


         // Every scheduled intent needs a different ID, else it is just executed once

         int id = (int) System.currentTimeMillis();
         // Prepare the intent which should be launched at the date

         //Intent intent = new Intent(this, ActivityNotifier.class);
         //Intent intent = new Intent(this, TimeAlarm.class);
         Intent intent = new Intent(this, ActivityNotifier.class);
         //TODO check if object can be passed and pass ResortActivity
         intent.putExtra ("Alert_ID", activity.getActId());
         // Prepare the pending intent

         Integer actIntID = new Integer(activity.getActId());

         id = actIntID.intValue();

         PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), id, intent, PendingIntent.FLAG_UPDATE_CURRENT);
         // Register the alert in the system. You have the option to define if the device has to wake up on the alert or not

         Calendar actCal = activity.getCalendar();

         System.out.println("Activity Date : "
                 + actCal.get(Calendar.MONTH) + "/"
                 + actCal.get(Calendar.DAY_OF_MONTH) +"/"
                 + actCal.get(Calendar.YEAR) + "  "
                 + actCal.get(Calendar.HOUR_OF_DAY)
                 + ":"
                 + actCal.get(Calendar.MINUTE)
                 + ":"
                 + actCal.get(Calendar.SECOND)
                 + actCal.get(Calendar.AM_PM));

         System.out.println(actCal.toString());
         actCal.add(Calendar.MINUTE, -15);
         System.out.println(actCal.toString());

         System.out.println("After 15 min : "
                 + actCal.get(Calendar.MONTH) + "/"
                 + actCal.get(Calendar.DAY_OF_MONTH) +"/"
                 + actCal.get(Calendar.YEAR) + "  "
                 + actCal.get(Calendar.HOUR_OF_DAY)
                 + ":"
                 + actCal.get(Calendar.MINUTE)
                 + ":"
                 + actCal.get(Calendar.SECOND)
                 + actCal.get(Calendar.AM_PM));

         //alarmManager.set(AlarmManager.RTC_WAKEUP, activity.getCalendar().getTimeInMillis(), pendingIntent);
         alarmManager.set(AlarmManager.RTC_WAKEUP, actCal.getTimeInMillis(), pendingIntent);
     }//end if for alert = "Y"
   }

}//createNotifications

这是接收警报的类

    public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
    PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ResortPlanner");

     //Acquire the lock
     wl.acquire();

    System.out.println("here in onReceive");
    ResortActivity activity = null;
    final GlobalVariables globalVariables = (GlobalVariables) context.getApplicationContext();

    int actID;

    actID = new Integer(intent.getStringExtra("Alert_ID")).intValue();


    Logger tlogger = new Logger();
    tlogger.setLogFilename(globalVariables.getLogFilename());
    tlogger.setLogClass("ActivityNotifier");
    tlogger.setLogMsg("ID: " + actID);
    tlogger.setLogProcedure("Activity Notifier");
    tlogger.setLogType("I");
    tlogger.logMessage();           

    ActivitiesReader actReader = new ActivitiesReader(globalVariables.getActAlertFullName());
    try{
        activity = actReader.getActivity(actID);
    }catch (ResortAppsException e){         
        Logger logger = new Logger();
        logger.setLogFilename(globalVariables.getLogFilename());
        logger.setLogClass(e.getErrClass());
        logger.setLogMsg(e.getErrMsg());
        logger.setLogProcedure(e.getErrProcedure());
        logger.setLogType("E");
        logger.logMessage();            

        logger = new Logger();
        logger.setLogFilename(globalVariables.getLogFilename());
        logger.setLogClass("ActivityNotifier");
        logger.setLogMsg("Unable to create notified due to previous error.");
        logger.setLogProcedure("onReceive");
        logger.setLogType("E");
        logger.logMessage();            

    }


     // Request the notification manager
    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

     NotificationCompat.BigTextStyle bigTxtStyle =
                new NotificationCompat.BigTextStyle();          
                bigTxtStyle.bigText(activity.getActTime() + " " + activity.getActDescr());               
                bigTxtStyle.setBigContentTitle("Activity Reminder");



     NotificationCompat.Builder noteBuild = new NotificationCompat.Builder(context)
     .setContentTitle("Activity Reminder")
     .setContentText(activity.getActTime() + " " + activity.getActDescr())
     .setSmallIcon(R.drawable.notification)
     .setAutoCancel(true)
     .setDefaults(Notification.DEFAULT_VIBRATE + Notification.DEFAULT_SOUND)
     .setStyle(bigTxtStyle);


     // Fire the notification
     Notification notify = noteBuild.build();
     notificationManager.notify(actID, notify);
     //notificationManager.notify(1, notification);

     wl.release();

}

提前感谢您提供的任何帮助。