Shake Animation for UITextField/UIView in Swift

Question

I am trying to figure out how to make the text Field shake on button press when the user leaves the text field blank.

I currently have the following code working:

Answer 1

Swift 5

Safe (non crash) shake extension for Corey Pett answer:

extension UIView {
    func shake(for duration: TimeInterval = 0.5, withTranslation translation: CGFloat = 10) {
        let propertyAnimator = UIViewPropertyAnimator(duration: duration, dampingRatio: 0.3) {
            self.transform = CGAffineTransform(translationX: translation, y: 0)
        }

        propertyAnimator.addAnimations({
            self.transform = CGAffineTransform(translationX: 0, y: 0)
        }, delayFactor: 0.2)

        propertyAnimator.startAnimation()
    }
}