Clear applicationIconBadgeNumber without removing notifications not working

Question

I\'ve read in a few posts (like this one https://forums.developer.apple.com/thread/7598) that setting

    application.applicationIconBadgeNumber = -1
         


        

Answer 1

Setting application badge to -1 indirectly with a empty local notification worked for me, but its a hack to persist notifications in tray while clearing application badge count.

if(badgeCount == 0) {
   //set application badge indirectly with UILocalNotification
   UILocalNotification *ln = [[UILocalNotification alloc]init];
   ln.applicationIconBadgeNumber = -1;
   [[UIApplication sharedApplication] presentLocalNotificationNow:ln];
}
else {
   [[UIApplication sharedApplication] setApplicationIconBadgeNumber:badgeCount];
}

Swift Version

if badgeCount == 0 {
    //set application badge indirectly with UILocalNotification
    var ln = UILocalNotification()
    ln.applicationIconBadgeNumber = -1
    UIApplication.sharedApplication().presentLocalNotificationNow(ln)
}
else {
    UIApplication.sharedApplication().applicationIconBadgeNumber = badgeCount
}

Approach tested on iOS 9 and 10.