UIWebView和触摸事件 [英] UIWebView and touch event

问题描述

我想在视图中使用自定义触摸事件。有一个Web视图，它是此视图的子视图。
我覆盖了touchBegan和其他功能，但它没有运行。

I want use a custom touch event in a view. There is a web view which is the subview of this view. I override touchBegan and other functions but it does not run.

推荐答案

如果你想在点击时调用一个函数您可以使用UITapGestureRecognizer的视图

If you want to call a function while tapping a view you can use UITapGestureRecognizer

override func viewDidLoad() {
    super.viewDidLoad()
    let tapRecognizer = UITapGestureRecognizer(target: view, action: "handleSingleTap:")
    tapRecognizer.numberOfTapsRequired = 1
    self.view.addGestureRecognizer(tapRecognizer)
}

func handleSingleTap(recognizer: UITapGestureRecognizer) {
    //Do something here with the gesture
}    

对于Swift 3：

override func viewDidLoad() {
    super.viewDidLoad()
    let tapRecognizer = UITapGestureRecognizer(target: view, action: #selector(handleSingleTap))
    tapRecognizer.numberOfTapsRequired = 1
    self.view.addGestureRecognizer(tapRecognizer)
}

@objc func handleSingleTap(recognizer: UITapGestureRecognizer) {
    //Do something here with the gesture
}

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