ios - 基于背景点击关闭 View

Question

我有一个 UIView

var transparentBackground = UIView()

单击按钮时， View 会获得一些属性

 @IBAction func UserViewImage(_ sender: UIButton) -> Void {

        self.transparentBackground = UIView(frame: UIScreen.main.bounds)
        self.transparentBackground.backgroundColor = UIColor(white: 0.0, alpha: 0.4)
        UIApplication.shared.keyWindow!.addSubview(self.transparentBackground)
        self.opaqueView = self.setupOpaqueView()
        self.transparentBackground.addSubview(opaqueView)
        UIApplication.shared.keyWindow!.bringSubview(toFront: self.transparentBackground)
        self.view.bringSubview(toFront: transparentBackground)

    }

当单击另一个按钮时， View 将完全消失，并使用名为 removeAnimate 的函数。

func handleOKButtonTapped(_ sender: UIButton){
    removeAnimate()

}

但是，我希望在单击背景( View )时 View 完全消失，就像单击按钮时一样，所以我这样做了:

 override func viewDidLoad() {
        super.viewDidLoad()

            let gestureRecognizer = UITapGestureRecognizer(target: self, action:  #selector(removeAnimate))
            self.transparentBackground.addGestureRecognizer(gestureRecognizer)
}

但它不起作用，我不确定我做错了什么。不是透明背景 View 中有 subview 。

 self.transparentBackground.addSubview(opaqueView)

Answer 1

我是这样实现的:

viewDidLoad() {

    let gestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(close))

            gestureRecognizer.cancelsTouchesInView = false

            gestureRecognizer.delegate = self

            view.addGestureRecognizer(gestureRecognizer)
}

func close() {

            dismiss(animated: true, completion: nil)

        }