WKWebView无法打开外部链接。

Question

我正在将我的UIWebView应用程序转换为WKWebView，但发现它无法打开外部网站，例如Dropbox、Facebook等。

它在viewDidLoad中加载我的网站，所以这不是问题。

示例：

NSURL *nsurl=[NSURL URLWithString:@"example.com"];
NSURLRequest *nsrequest=[NSURLRequest requestWithURL:nsurl];
[webView loadRequest:nsrequest];

webView.navigationDelegate = self;
webView.UIDelegate = self;
[self.view addSubview:webView];

我已经打电话了：

-(void)webView:(WKWebView *)webView didStartProvisionalNavigation: (WKNavigation *)navigation {}

- (void)webView:(WKWebView *)webView didFinishNavigation: (WKNavigation *)navigation{}

随着：

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {}

decisionHandler(WKNavigationActionPolicyAllow);

最后，在我的 info.plist 文件中，我添加了以下内容：

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    <key>NSExceptionAllowsInsecureHTTPLoads</key>
    <true/>
    <key>NSIncludesSubdomains</key>
    <true/>
    <key>NSThirdPartyExceptionAllowsInsecureHTTPLoads</key>
    <true/>
</dict>

但是仍然没有任何作用。我做错了什么？

如常，任何帮助都将不胜感激。

- ChrisOSX

Answer 1

好的，所以我设法获得了它，并在一些被遗忘的网站（抱歉）的帮助下设法使其全部正常工作。

因此，以下基本上是我在Webview中使用的所有内容。

//Webview Start/Finish Request
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation {
    [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
    NSLog(@"didStartProvisionalNavigation: %@", navigation);
}

- (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(WKNavigation *)navigation {
    NSLog(@"didReceiveServerRedirectForProvisionalNavigation: %@", navigation);
}

- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error {
    NSLog(@"didFailProvisionalNavigation: %@navigation, error: %@", navigation, error);
}

- (void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation *)navigation {
    NSLog(@"didCommitNavigation: %@", navigation);
}

- (void)webView:(WKWebView *)webView didFinishLoadingNavigation:(WKNavigation *)navigation {
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
    NSLog(@"didFinishLoadingNavigation: %@", navigation);
}

- (void)webView:(WKWebView *)webView didFailNavigation:(WKNavigation *)navigation withError:(NSError *)error {
    NSLog(@"didFailNavigation: %@, error %@", navigation, error);
}

- (void)_webViewWebProcessDidCrash:(WKWebView *)webView {
    NSLog(@"WebContent process crashed; reloading");
}

- (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures {

    if (!navigationAction.targetFrame.isMainFrame) {
        [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
        [self.webView loadRequest:navigationAction.request];
    }
    return nil;
}

- (void)webView:(WKWebView *)webView didFinishNavigation: (WKNavigation *)navigation{
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
    NSLog(@"didFinish: %@; stillLoading:%@", [self.webView URL], (self.webView.loading?@"NO":@"YES"));
}

- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler {
    NSLog(@"decidePolicyForNavigationResponse");
    decisionHandler(WKNavigationResponsePolicyAllow);
}

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {

    if (decisionHandler) {
        decisionHandler(WKNavigationActionPolicyAllow);
    }
}

所以我希望所有这些能帮助到某人。

- ChrisOSX

Answer 2

这是关于此答案的Swift 3.0版本 添加这两个代理。

// webView is WKWebview object  
 webView.navigationDelegate = self;
 webView.uiDelegate = self;

覆盖这些委托回调方法。

  func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation) {
        UIApplication.shared.isNetworkActivityIndicatorVisible = true
        print("didStartProvisionalNavigation: \(navigation)")
    }

func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation) {
        print("didReceiveServerRedirectForProvisionalNavigation: \(navigation)")
    }

    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation, withError error: Error) {
        print("didFailProvisionalNavigation: \(navigation), error: \(error)")
    }

func webView(_ webView: WKWebView, didFinishLoading navigation: WKNavigation) {
        UIApplication.shared.isNetworkActivityIndicatorVisible = false
        print("didFinishLoadingNavigation: \(navigation)")
    }


    func _webViewWebProcessDidCrash(_ webView: WKWebView) {
        print("WebContent process crashed; reloading")
    }

func webView(_ webView: WKWebView,createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView?{
        //if <a> tag does not contain attribute or has _blank then navigationAction.targetFrame will return nil
        if let trgFrm = navigationAction.targetFrame {

            if(!trgFrm.isMainFrame){
                UIApplication.shared.isNetworkActivityIndicatorVisible = true
                self.webView.load(navigationAction.request)
            }
        }



    return nil
}

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!){

    UIApplication.shared.isNetworkActivityIndicatorVisible = false
    print("didFinish: \(String(describing: self.webView.url)); stillLoading:\(self.webView.isLoading ? "NO" : "YES")")

}



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

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

     decisionHandler(.allow)
}

- shashi shekhar

Answer 3

请检查此方法的返回类型。

- (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures {

        if (!navigationAction.targetFrame.isMainFrame) {

            [self.webView loadRequest:navigationAction.request];
        }
        return self.webView;
    }

由于它是WKWebView，如果您返回您的webview，它将为您加载URL并提供所需的页面以显示。

- Jeba Moses