TapticAlertView.swift

class AlertView: UIView {
    
    @IBOutlet var closeButton: UIButton!
    @IBAction func close(_ sender: UIButton) {
        TapticEngine.pop()
        flash(closeButton) { [weak self] _ in
            self?.removeFromSuperview()
        }
    }
    
    @IBOutlet var cancelButton: UIButton!
    @IBAction func cancel(_ sender: UIButton) {
        TapticEngine.cancelled()
        flash(cancelButton)
    }
    
    @IBOutlet var popButton: UIButton!
    @IBAction func pop(_ sender: UIButton) {
        TapticEngine.pop()
        flash(retryButton)
    }
    
    private func flash(_ view: UIView,
                       with duration: Double = 0.5,
                       color: UIColor = .yellow,
                       completion: @escaping (Bool) -> Void = { _ in  })  {
        
        UIView.animate(withDuration: duration, animations: {
            view.backgroundColor = color
            view.backgroundColor = .clear
        },
        completion: completion)
        
    }

}