Create and cancel a local notification on iOS / Swift

LocalNotification.swift

class LookAtMeNotification {
    
    func createNotification(key: String) {
        let notification = UILocalNotification()
        notification.fireDate = NSDate(timeIntervalSinceNow: 5)
        notification.repeatInterval = NSCalendarUnit.Minute
        notification.alertBody = "Please Look at me"
        notification.soundName = UILocalNotificationDefaultSoundName
        notification.userInfo = ["ID": key]

        UIApplication.sharedApplication().scheduleLocalNotification(notification)
    }

    func cancelNotification(key: String) {
        if let localNotifications = UIApplication.sharedApplication().scheduledLocalNotifications {
            for localNotification in localNotifications {
                if let userInfo = localNotification.userInfo {
                    if userInfo["ID"] as! String == key {
                        UIApplication.sharedApplication().cancelLocalNotification(localNotification)
                    }
                }
            }
        }
    }
}