Notifications.swift

    func addTodoItem(item: TodoItem) {
        self.storedTodos.append(item)
        self.createNotification(item.todoName, date: item.todoDueDate)
        self.saveAndNotify()
    }
    
    func removeTodoItem(item: TodoItem) {
        if self.storedTodos.contains(item) {
            if let indexToRemove = self.storedTodos.indexOf(item) {
                self.storedTodos.removeAtIndex(indexToRemove)
                self.removeNotification(item.todoName, date: item.todoDueDate)
                self.saveAndNotify()
            }
        }
    }
    
    func createNotification(name: String, date: NSDate) {
        let notification: NSUserNotification = NSUserNotification()
        notification.deliveryDate = date
        notification.title = "Reminderz"
        notification.subtitle = name
        NSUserNotificationCenter.defaultUserNotificationCenter().scheduleNotification(notification)
    }
    
    func removeNotification(name: String, date: NSDate) {
        for notification in NSUserNotificationCenter.defaultUserNotificationCenter().scheduledNotifications {
            if notification.subtitle! == name && (notification.deliveryDate?.isEqualToDate(date))! {
                NSUserNotificationCenter.defaultUserNotificationCenter().removeScheduledNotification(notification)
            }
        }
    }
    
    func removeOldNotifications() {
        NSUserNotificationCenter.defaultUserNotificationCenter().removeAllDeliveredNotifications()
    }