如何检查WKWebView URLAuthenticationChallenge是失败还是成功？

Question

我正在使用WKWebView打开一个url，但在此之前它对用户进行身份验证。输入正确的凭据后，它可以正常工作，但是如果凭据输入错误，我将找不到任何可以检测到故障的委托或函数。

代码：

func webView(_ webView: WKWebView, didReceive challenge: 
    URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
        let user = "user"
        let password = "password"
        let credential = URLCredential(user: user, password: password, persistence: URLCredential.Persistence.forSession)
        completionHandler(URLSession.AuthChallengeDisposition.useCredential, credential)

    }

在失败的响应失败的情况下，我可以从URLAuthenticationChallenge中检测到previousFailureCount。Response总是给出状态码：401。检测URLAuthenticationChallenge失败或成功的更好方法是什么？

Answer 1

您可以从响应中获取状态代码。实现委托方法

func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse,
             decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {
    if let response = navigationResponse.response as? HTTPURLResponse {
        if response.statusCode == 401 {
            decisionHandler(.cancel)
        } else {
            decisionHandler(.allow)
        }
    } 
}