UIWebView和触摸事件

Question

我想在视图中使用自定义触摸事件。有一个网络视图，这是这个视图的子视图。 我重写touchBegan和其他函数，但它不运行。

Answer 1

如果要调用一个函数，而轻敲视图，您可以使用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 
}  

对于斯威夫特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 
}