List of local iOS notifications after the notification was issued

My app is running in the background and watching for bluetooth data. When data comes in, I show a notification that the user needs to open the app so that I can process the data just coming in.

I am writing in iOS 5 and later.

I am making my notice using this code:

        UILocalNotification* alarm = [[[UILocalNotification alloc] init] autorelease];
        if (alarm) {

            alarm.fireDate = [NSDate date];
            alarm.timeZone = [NSTimeZone defaultTimeZone];
            alarm.repeatInterval = 0;
            alarm.soundName = @"alarmsound.caf";
            alarm.alertBody = message;

            [app scheduleLocalNotification:alarm];
        }

      

        
        
        
      

    

As I hope you can see from this code, the notification is triggered immediately.

The problem I am running into is that I cannot detect that there is already a notification in the notification bar. I've tried using:

        NSArray *oldNotifications = [app scheduledLocalNotifications];

        // Clear out the old notification before scheduling a new one.
        if ([oldNotifications count] > 0)
            [app cancelAllLocalNotifications];

      

        
        
        
      

    

This doesn't seem to work because the oldNotifications score is always 0, although there is a ton in the notification bar. I'm guessing this is because notifications are already running?

Basically I only want to notify the user once unless they dismiss that notification without opening the app. It would be nice if I could increase the value of the app icon so that the user knows how many Bluetooth messages have appeared. Instead, I just get a new notification for each incoming message.

How can I just notify the user once and then only notify if they have dismissed the notification?