swift - 点击事件不会在动画 ImageView 上触发

Question

我想要一个带有 UIBezierPath (从上到下滑动)的动画 imageView 被单击。但我发现的每一个谷歌帮助都没有解决这个问题。但它不会打印“点击”。

动画效果非常完美。也许有人有线索？

非常感谢您的帮助。

override func viewDidLoad() {
    super.viewDidLoad()

    let imageView = UIImageView(image: UIImage(named: "advent_button"))
    let dimension = 25 + drand48() * 30
    imageView.frame = CGRect(x: 0, y: 0, width: dimension, height: dimension)

    let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleImageTap))
    imageView.addGestureRecognizer(tapGestureRecognizer)
    imageView.isUserInteractionEnabled = true

    let animation = CAKeyframeAnimation(keyPath: "position")
    animation.path = customPath().cgPath
    animation.duration = 20
    animation.fillMode = .forwards
    animation.isRemovedOnCompletion = false
    animation.repeatCount = 0.5
    animation.timingFunction = CAMediaTimingFunction(name: .easeOut)

    imageView.layer.add(animation, forKey: nil)
    view.addSubview(imageView)        
}

@objc func handleImageTap() {
    print ("clicked")
}

func customPath() -> UIBezierPath {
    let path = UIBezierPath()

    path.move(to: CGPoint(x: 200, y: 0))
    let endpoint = CGPoint(x: 20 , y: 700)
    let cp1 = CGPoint(x: 90, y: 250)
    let cp2 = CGPoint(x: 180, y: 400)
    path.addCurve(to: endpoint, controlPoint1: cp1, controlPoint2: cp2)
    return path
}

Answer 1

我尝试过以下方法:

UIView.animate(withDuration: 30, delay: delay, options: [.allowUserInteraction], animations: {
        self.button.frame = CGRect(
            x: randomXEndShift,
            y: 700,
            width: dimension,
            height: dimension)
    }, completion: nil)

显示相同的行为。即使使用 .allowUserInteraction 也没有任何帮助。