如何使用WKWebView进行用户身份validation？

目标 ：检索accessToken和用户详细信息，而无需使用任何本机控件来输入用户凭据。 使用SSO登录。

步骤 ：iOS App和用户执行

1.User选择SSO登录选项

2.User重定向到SSO登录URL

3.SSO登录URL显示用于输入用户名和密码的JavaScript警报。（在桌面和移动浏览器上，它在webview中不显示任何内容）

4.一旦用户输入凭证，他就会被重定向到我们的服务器，该服务器返回带有用户数据的html页面。

我尝试过：尝试使用以下

func viewDidLoad(){ let pref = WKPreferences() pref.javaScriptEnabled = true pref.javaScriptCanOpenWindowsAutomatically = true /* Create a config using pref*/ let configuration = WKWebViewConfiguration() configuration.preferences = pref /* Instantiate the web view */ let webviewFrame = CGRect(x:0,y: txtSSOLoginUrl.bounds.maxY, width: self.view.bounds.width, height: self.view.bounds.height - 40) webView = WKWebView(frame:webviewFrame,configuration: configuration) view.addSubview(webView) webView.navigationDelegate = self webView.uiDelegate = self webView.load(request as URLRequest) } extension SSOLoginViewController:WKUIDelegate,WKNavigationDelegate{ func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) { UIApplication.shared.isNetworkActivityIndicatorVisible = true print("DID START NAV didStartProvisionalNavigation") } func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) { print("RECEIVERD SERVER REDIRECT") } func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) { print("EERRORRR : \(error)") } func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) { print ("ERRRRRR : \(error)") } func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping () -> Void) { print("runJavaScriptAlertPanelWithMessage") let alertController = UIAlertController(title: nil, message: message, preferredStyle: .actionSheet) alertController.addAction(UIAlertAction(title: "Ok", style: .default, handler: { (action) in completionHandler() })) self.present(alertController, animated: true, completion: nil) alertController.popoverPresentationController?.sourceView = self.view } func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (Bool) -> Void) { print("runJavaScriptConfirmPanelWithMessages") let alertController = UIAlertController(title: nil, message: message, preferredStyle: .actionSheet) alertController.addAction(UIAlertAction(title: "Ok", style: .default, handler: { (action) in completionHandler(true) })) alertController.addAction(UIAlertAction(title: "Cancel", style: .default, handler: { (action) in completionHandler(false) })) self.present(alertController, animated: true, completion: nil) alertController.popoverPresentationController?.sourceView = self.view } func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (String?) -> Void) { print("runJavaScriptTextInputPanelWithPrompt") let alertController = UIAlertController(title: nil, message: prompt, preferredStyle: .actionSheet) alertController.addTextField { (textField) in textField.text = defaultText } alertController.addAction(UIAlertAction(title: "Ok", style: .default, handler: { (action) in if let text = alertController.textFields?.first?.text { completionHandler(text) } else { completionHandler(defaultText) } })) alertController.addAction(UIAlertAction(title: "Cancel", style: .default, handler: { (action) in completionHandler(nil) })) self.present(alertController, animated: true, completion: nil) alertController.popoverPresentationController?.sourceView = self.view } func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) { UIApplication.shared.isNetworkActivityIndicatorVisible = false print("DID FINISH NAV didFinish navigation") } func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) { print("DECIDE POLICY WKNavigationResponse \(navigationResponse)") decisionHandler(.allow) } func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) { print("DID RECEIVE URLAuthenticationChallenge") //var cred = URLCredential(user: "username", password: "Password123!", persistence: URLCredential.Persistence.none) //challenge.sender?.use(password, for: challenge) completionHandler(URLSession.AuthChallengeDisposition.useCredential, nil) } } 

输出未查看提示用户凭据的警报。

预期输出使用用户名和密码文本字段获取警报以输入凭据。