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敲击手势识别分配给图像的滚动视图内
我试图创建的图像和可点击苹果商店一样的屏幕截图, 当用户触摸上一个图像的一些行动电话的滚动视图!但在这里我无法找到这个问题,这是行不通的! 请注意,我使用的所有UI都是由代码完成的!在斯威夫特
func initScreenshots(){
if screenShotsView.subviews.count > 0{
screenShotsView.subviews.forEach({ $0.removeFromSuperview() })
}
imageArray.append(UIImage.init(named: "1.jpeg")!)
imageArray.append(UIImage.init(named: "2.jpeg")!)
for image in imageArray {
let index = imageArray.index(of: image)
let imageView:UIImageView = {
let iv = UIImageView()
iv.image = image
iv.translatesAutoresizingMaskIntoConstraints = false
iv.contentMode = .scaleAspectFit
return iv
}()
imageView.isUserInteractionEnabled = true
imageView.addGestureRecognizer(tapGesture)
screenShotsView.addSubview(imageView)
imageView.topAnchor.constraint(equalTo: screenShotsView.topAnchor, constant: 10).isActive = true
imageView.bottomAnchor.constraint(equalTo: screenShotsView.bottomAnchor, constant: 10).isActive = true
imageView.heightAnchor.constraint(equalToConstant: 350).isActive = true
imageView.widthAnchor.constraint(equalToConstant: 190).isActive = true
if index == 0 {
imageView.leftAnchor.constraint(equalTo: screenShotsView.leftAnchor, constant: 10).isActive = true
}else if(index == imageArray.count - 1){
imageView.rightAnchor.constraint(equalTo: screenShotsView.rightAnchor, constant: 10).isActive = true
imageView.leftAnchor.constraint(equalTo: ((screenShotsView.subviews[index! - 1]).rightAnchor), constant: 10).isActive = true
}else{
imageView.leftAnchor.constraint(equalTo: ((screenShotsView.subviews[index! - 1]).rightAnchor), constant: 10).isActive = true
}
imageView.isUserInteractionEnabled = true
imageView.addGestureRecognizer(tapGesture)
}
}
而且你可以看到我的手势识别:
let tapGesture:UITapGestureRecognizer = {
let gr = UITapGestureRecognizer(target: self, action: #selector(tapBlurButton(_:)))
gr.numberOfTapsRequired = 1
return gr
}()
我的回调函数是简单的这样!但它不工作:(
func tapBlurButton(_ sender: UITapGestureRecognizer) {
print("Please Help!")
}
您是否尝试过使用按钮并设置按钮的背景图像与你想要的? –
@OrenEdrich不,但我有另一个按钮,在我看来,我已经添加了这个手势识别器,但仍然不工作:( – shaibow
你不需要添加一个手势识别器到一个按钮将它连接到你的.swift文件。或者让一个if(你的按钮).isSelected = true {你的代码} –