Ios 从WKWebview检索HTTP响应头

我需要从

WKWebview

的请求中读取响应HTTP头。我需要根据服务器发送的某些自定义头执行自定义。无法在响应数据中添加此信息

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我在文档或之前的问题中找不到任何条目。有什么方法可以做到这一点吗？

通过委托方法，您可以检索

（WKNavigationResponse*）navigationResponse

。从navigationResponse对象可以获得响应本身：

- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler {

     NSHTTPURLResponse * response = (NSHTTPURLResponse *)navigationResponse.response;

}

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看起来您可以通过

WKNavigationDelegate

方法访问响应

将某些对象设置为

WKWebView

的

navigationDelegate

，并添加此方法：

- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler {
    NSDictionary *headers = ((NSHTTPURLResponse *)navigationResponse.response).allHeaderFields;

    decisionHandler(WKNavigationResponsePolicyAllow);
}

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NobodyNada答案的Swift 3.1、4和5版本：

无强制铸造

func webView（webView:WKWebView，decisionpolicyfornavigationresponse:WKNavigationResponse，decisionHandler:@escaping（WKNavigationResponsePolicy）->Void）{
如果let response=navigationResponse.response as？HTTPURLResponse{
let headers=response.allHeaderFields
//对标题做些什么
}
决策处理程序（.allow）
}

强制铸造：

func webView（webView:WKWebView，decisionpolicyfornavigationresponse:WKNavigationResponse，decisionHandler:@escaping（WKNavigationResponsePolicy）->Void）{
let headers=（navigationResponse.response为！HTTPURLResponse）。allHeaderFields
//对标题做些什么
决策处理程序（.allow）
}

Swift 4.2 Answers with response.
func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void)
 {
   let response = navigationResponse.response as? HTTPURLResponse
       decisionHandler(.allow)
}