How to increment/decrement application.badge number for UILocalnotification

Question

I have UILocalnotification when multiple notification is fired i want application badge number to get increment and when notification is seen i want application badge number to decrease depending upon how many notification is cancelled / watched the notification

 - (UILocalNotification *)scheduleNotification :(int)remedyID
{
        NSString *descriptionBody;
        NSInteger frequency;

        UILocalNotification *notif = [[UILocalNotification alloc] init];


        descriptionBody =[[self remedyDetailsForRemedyID:remedyID] objectForKey:@"RemedyTxtDic"];
        frequency = [[[self remedyDetailsForRemedyID:remedyID] objectForKey:@"RemedyFrequency"]intValue];

        NSArray *notificationFireDates = [self fireDatesForFrequency:frequency];

        for (NSDate *fireDate in notificationFireDates)
        {
                notif.timeZone = [NSTimeZone defaultTimeZone];


                notif.repeatInterval = NSDayCalendarUnit;
                notif.alertBody = [NSString stringWithString:descriptionBody];
                notif.alertAction = @"Show me";
                notif.soundName = UILocalNotificationDefaultSoundName;

                notif.applicationIconBadgeNumber = 1;

                notif.fireDate = fireDate;


                NSDictionary *userDict = [NSDictionary dictionaryWithObjectsAndKeys:notif.alertBody,                                         @"kRemindMeNotificationDataKey",  [NSNumber numberWithInt:remedyID],kRemindMeNotificationRemedyIDKey,
                                          nil];

                notif.userInfo = userDict;

                [[UIApplication sharedApplication] scheduleLocalNotification:notif];
            }

            return notif;

}

}

- (void)cancelNotification:(int)remedyId
{


    NSArray *notifications = [[UIApplication sharedApplication] scheduledLocalNotifications];
    NSLog(@"Cancelling... Before %d",[[[UIApplication sharedApplication]scheduledLocalNotifications]count]);

    for (UILocalNotification *notification in notifications)
    {

        int notifRemedyId = [[notification.userInfo objectForKey:@"kRemindMeNotificationRemedyIDKey"]intValue];

        NSLog(@"remedyID  : %d",remedyId);
        NSLog(@"notifyId : %d",notifRemedyId);
        if (remedyId == notifRemedyId)
        {
            [[UIApplication sharedApplication] cancelLocalNotification:notification];
        }

    }

    NSLog(@"Cancelling... After %d",[[[UIApplication sharedApplication]scheduledLocalNotifications]count]);

}

Here's it.. [http://stackoverflow.com/questions/5962054/iphone-incrementing-the-application-badge-through-a-local-notification](http://stackoverflow.com/questions/5962054/iphone-incrementing-the-application-badge-through-a-local-notification) — Mr. Frank, May 09 '13 at 16:02

Thilina Chamath Hewagama · Answer 1 · 2013-05-09T16:22:22.123

7

You can simply use these two methods,

-(void) incrementOneBadge{
    NSInteger numberOfBadges = [UIApplication sharedApplication].applicationIconBadgeNumber;
    numberOfBadges +=1;

    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:numberOfBadges];
}

-(void) decrementOneBdge{
    NSInteger numberOfBadges = [UIApplication sharedApplication].applicationIconBadgeNumber;
    numberOfBadges -=1;

    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:numberOfBadges];
}

edited May 09 '13 at 16:22

answered May 09 '13 at 16:05

Thilina Chamath Hewagama

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numberOfBadges -=1; this is used to decrement applicationiconbadgenumber right ? – raptor May 09 '13 at 16:07
should i use this method in my MainViewController or should it be also present in appdelegate – raptor May 09 '13 at 16:09
i'll let u know tomo ...btw when there are multiple notification the badge number will get increment automatically – raptor May 09 '13 at 17:11
you can just set the number depending on your needs, [[UIApplication sharedApplication] setApplicationIconBadgeNumber:4]; or any number – Thilina Chamath Hewagama May 09 '13 at 17:13
if i set 4 ...and say 3 notifications are fired ..does it show 3 applicationbadgenumber ? ..is setApplicationBadgeNumber : 4 means max of 4 will be shown ? – raptor May 09 '13 at 17:25
4 is exactly 4, [[UIApplication sharedApplication] setApplicationIconBadgeNumber:4]; must show you 4 badges.. – Thilina Chamath Hewagama May 09 '13 at 17:29
i want to set setApplicationBadgeNumber depending upon how many notiification is fired it may be 2,4,15 etc ..`numberOfBadges +=1;`.this should solve it right – raptor May 09 '13 at 17:32
yes, also make sure you reduce the number at the correct time – Thilina Chamath Hewagama May 09 '13 at 17:36
ok...just one more thing say out of 4 if i see 1 notification ..`numberOfBadges -=1;` will reduce notification to 3 ? – raptor May 09 '13 at 17:39
its not working .. i put this method in my mainviewcontroller.m and when two notification is fired badge number is showing 1 instead of 2 – raptor May 10 '13 at 04:33
do you call this method twice ? – Thilina Chamath Hewagama May 10 '13 at 04:36
Where to place these two methods and from where to call the same ? – Vaibhav Jhaveri Oct 16 '14 at 09:03

How to increment/decrement application.badge number for UILocalnotification

1 Answers1