Question

I’m trying here to repeat a local notification for every hour. so I tried this sample code:

UILocalNotification *reminderNote = [[UILocalNotification alloc]init];
    reminderNote.fireDate = [NSDate dateWithTimeIntervalSinceNow:60 * 60];
    reminderNote.repeatInterval = NSDayCalendarUnit;
    reminderNote.alertBody = @"some text";
    reminderNote.alertAction = @"View";
    reminderNote.soundName = @"sound.aif";
    [[UIApplication sharedApplication] scheduleLocalNotification:reminderNote];

and it worked fine. But when I try to repeat it at a specific minute of the hour, say every hour sharp, or every hour and 6 mins. I just couldn’t figure out a way to do that! I tried to change SinceNow to anything else but it’s not working!

Is there a way change it? or any other sample code that I should work on?

Thanks in Advance.

Answer 1

If the repeat interval between the first and the second reminder repetition is different from the interval for the rest, you need to define a new local notification with the correct fire date, e.g. 6 minutes after the hour. Then set the repeat interval to the NSHourCalendarUnit.

You can specify the interval with the usual pattern with NSCalendar and NSDateComponents. This is well documented here.