与WKWebView的拦截请求 [英] Intercept request with WKWebView

问题描述

现在我正在使用UIWebView，并且使用NSURLProtocol的canInitWithRequest:，我可以拦截所有请求，并根据需要进行处理.

Now i'm using UIWebView and with canInitWithRequest: of NSURLProtocol i can intercept all requests and do with it what I want.

在新的WKWebView这种方法中，没有，而且我没有发现类似的东西.

In the new WKWebView this method there isn't, and i not found something similar.

有人解决了这个问题吗?

Has someone resolved this problem?

推荐答案

通过为WKNavigationDelegate

 func webView(_ webView: WKWebView, decidePolicyFor 
       navigationAction: WKNavigationAction, 
       decisionHandler: @escaping (WKNavigationActionPolicy) -> Swift.Void) {

    //link to intercept www.example.com

    // navigation types: linkActivated, formSubmitted, 
    //                   backForward, reload, formResubmitted, other

    if navigationAction.navigationType == .linkActivated {
        if navigationAction.request.url!.absoluteString == "http://www.example.com" {
            //do stuff

            //this tells the webview to cancel the request
            decisionHandler(.cancel)
            return
        }
    }

    //this tells the webview to allow the request
    decisionHandler(.allow)

}

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