import CWNotificationBanner

override func viewDidLoad() {
    super.viewDidLoad()

    // MessageAction to register blocks by key to call when tapping a message banner
    let tapAction:MessageAction = { Void in

    let alert = UIAlertController(title: "Tapped the alert banner", message: "Popups are a terrible user experience, eh?", preferredStyle: .Alert)
    self.showViewController(alert, sender: nil)
    }

    Message.registerAction(tapAction, forKey: "tapAction")
}

override func viewDidAppear(animated: Bool) {
    super.viewDidAppear(animated)

    let message = Message(text: "Hello there")

    NotificationBanner.showMessage(message)
}

override func viewWillDisappear() {
    super.viewWillDisappear()

    NotificationBanner.cancelMessage(message, animated: false)
    NotificationBanner.cancelAllMessages()
}