Question

我有一个UIImage，其中包含另一个UIImage的蒙版。唯一的问题是，当我点击蒙版外面的区域时，脚本仍然认为我正在点击图像。

let tap = UITapGestureRecognizer()
override func viewDidLoad() {
    super.viewDidLoad()
tap = UITapGestureRecognizer(target: self, action: #selector(ViewController.handleTap(_:)))
tap.numberOfTapsRequired = 1
tap.numberOfTouchesRequired = 1

let imageMask = UIImageView()
imageMask.image = ...//Image to mask to
imageMask.frame = imageView.bounds

imageView = UIImageView(image: ...)
imageView.mask = imageMask

imageView.addGestureRecognizer(tap)
}

@objc func handleTap(_ sender: UITapGestureRecognizer) {
    print("hello")
    //prints "hello" when tapped Image outside of mask
}

我如何将图像完全裁剪到蒙版上，这样它就不会在蒙版外面记录水龙头了？

Answer 1

使用此图像代替两个imageViews

let overMask = UIView()
overMask.frame = imageView.bounds
overMask.isUserInteractionEnabled = true

imageView = UIImageView(image: ...)
imageView.mask = overMask

imageView.addGestureRecognizer(tap)

overMask.addSubview(imageView)

裁剪要屏蔽的UIImage

1 个答案: