我正在努力将 UIWebView 迁移到 WKWebView。我已经更改了所有委托(delegate)方法。我需要 WKWebView 委托(delegate)方法等于下面的 UIWebView 委托(delegate)方法。该应用程序运行良好。但登录 session 不保留

UIWebView:

    extension WebViewController: UIWebViewDelegate {

    func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {

    guard let url = request.url else {
       trả về đúng
    }

    guard !url.absoluteString.contains("data:application/pdf") else {
        navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.action,
                                                            target: self,
                                                            action: #selector(share(sender:)))
        trả về đúng
    }

    guard url.pathExtension != "pdf" else {
        let safariVC = SFSafariViewController(url: url)
        safariVC.modalPresentationStyle = .popover
        present(safariVC, animated: true, completion: nil)
        trả về sai
    }

    guard url.isLogin() == false else {
        AppDelegate.navigationController.signOut(.sessionOnly)
        trả về sai
    }

    guard let mobileSite = url.asMobileSite() else {
        trả về đúng
    }

    let mobileRedirect = URLRequest(url: mobileSite)
    webView.loadRequest(mobileRedirect)
    trả về sai

}

func webViewDidStartLoad(_ webView: UIWebView) {
    numberOfDidStartLoads += 1
}

func webViewDidFinishLoad(_ webView: UIWebView) {
    numberOfDidStartLoads -= 1
}

func webView(_ webView: UIWebView, didFailLoadWithError error: Error) {
    numberOfDidStartLoads -= 1
}
}

我尝试了下面的代码并让 session 过期。

extension WebViewController: UIWebViewDelegate {

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

    guard let url = navigationAction.request.url else {
        decisionHandler(.allow)
        trở lại
    }

    guard !url.absoluteString.contains("data:application/pdf") else {
        navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.action,
                                                            target: self,
                                                            action: #selector(share(sender:)))
        decisionHandler(.allow)
        trở lại
    }

    guard url.pathExtension != "pdf" else {
        let safariVC = SFSafariViewController(url: url)
        safariVC.modalPresentationStyle = .popover
        present(safariVC, animated: true, completion: nil)
        decisionHandler(.cancel)
        trở lại
    }

    guard url.isLogin() == false else {
        AppDelegate.navigationController.signOut(.sessionOnly)
        decisionHandler(.cancel)
        trở lại
    }

    guard let mobileSite = url.asMobileSite() else {
        decisionHandler(.allow)
        trở lại
    }

    let mobileRedirect = URLRequest(url: mobileSite)
    webView.load(mobileRedirect)
    decisionHandler(.cancel)
    trở lại

    decisionHandler(.allow)

}

    func webViewDidStartLoad(_ webView: UIWebView) {
        numberOfDidStartLoads += 1
    }

    func webViewDidFinishLoad(_ webView: UIWebView) {
        numberOfDidStartLoads -= 1
    }

    func webView(_ webView: UIWebView, didFailLoadWithError error: Error) {
        numberOfDidStartLoads -= 1
    }
}

请帮我解决这个问题。我在将代码从 UIWebView 更改为 WKWebView 时犯了一些错误。

câu trả lời hay nhất

您可能需要在代码中实现以下内容，这意味着不要使用 UIWebViewDelegate 协议(protocol)，而是尝试使用 WKNavigationDelegate 协议(protocol)。我猜您在处理 phiên họp 时错过了最重要的功能之一。

   func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
        print(#function)
        completionHandler(.performDefaultHandling,nil)
    }

有不同类型的 AuthChallengeDisposition ，比如

public enum AuthChallengeDisposition : Int {


    case useCredential

    case performDefaultHandling

    case cancelAuthenticationChallenge

    case rejectProtectionSpace
}

完整的WKNavigationDelegate协议(protocol)是

  extension ViewController: WKNavigationDelegate{
    func webViewWebContentProcessDidTerminate(_ webView: WKWebView) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
        print(#function)
    }

    func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
        print(#function)
        completionHandler(.performDefaultHandling,nil)
    }

    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        print(#function)
        decisionHandler(.allow)
    }

    func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {
        print(#function)
        decisionHandler(.allow)
    }
}

关于ios - 将 UIWebView 委托(delegate)迁移到 WKWebView 委托(delegate)方法，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46171410/