How to delete all local notifications when an application is deleted from an iPhone

Question

Let\'s say I set 5 local notification for an iPhone application, then the user deletes the app. If the app is installed again, it shows the previous notifications.

I kno

Answer 1

For swift 3.0 you can use

if (isFirstLaunch){  
  UNUserNotificationCenter.current().removeAllPendingNotificationRequests()
}

Then add this method to check if this is the first run

var isFirstLaunch: Bool {
    get {
        if     (NSUserDefaults.standardUserDefaults().objectForKey("firstLaunchDate") == nil) {
            NSUserDefaults.standardUserDefaults().setObject(NSDate(),     forKey: "firstLaunchDate")
            NSUserDefaults.standardUserDefaults().synchronize()
            return true
        }
        return false
    }
}