WKWebView上的链接单击侦听器? [英] WKWebView on link click listener?

问题描述

WKWebView类中是否存在类似onLinkClickListener的东西?我尝试使用Google搜索，但一无所获，还发现了关于类似类型的stackoverflow的一些未解决的问题.

Does there exist something like a onLinkClickListener in the WKWebView class? I tried googling it but found nothing, I also found some unanswered questions on stackoverflow of simillar type.

我需要linkClickListener的原因是，当我单击链接并且页面尚未加载时，它也不会加载网站.当页面使用侦听器加载时，我还可以创建一个精美的加载屏幕.

The reason I need a linkClickListener is that, when I click on a link and the page did not load yet, it does not load the website. I also could create a fancy loading screen, when the page is loading with the listener.

推荐答案

您可以这样做

将WKNavigationDelegate添加到您的班级

add WKNavigationDelegate to your class

class ViewController: UIViewController, WKNavigationDelegate

设置导航代表

yourWKWebview.navigationDelegate = self

之后，您将可以使用definePolicyFor navigationAction函数

after that you will be able to use decidePolicyFor navigationAction function

 func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        if navigationAction.navigationType == WKNavigationType.linkActivated {
            print("link")

            decisionHandler(WKNavigationActionPolicy.cancel)
            return
        }
        print("no link")
        decisionHandler(WKNavigationActionPolicy.allow)
 }

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