如何检测WKWebView中单击链接的时间？我在UIWebView中寻找相当于此的东西.
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
if(navigationType == UIWebViewNavigationTypeLinkClicked)
{
}
return YES;
}
我在WKNavigationDelegate中尝试了这个,但即使单击链接,我也只能获得所有请求的WKNavigationTypeOther.
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
{
if(navigationAction.navigationType == WKNavigationTypeLinkActivated)
{
}
decisionHandler(WKNavigationActionPolicyAllow);
}
解决方法
您可以在WkWebView中执行以下操作：
override func viewDidLoad() {
super.viewDidLoad()
let webView = WKWebView()
self.view.addSubview(webView) // you need to also setup constraints here - I left out for clarity
// Make sure you set the delegate,so you get the callback
self.webView.navigationDelegate = self
}
// WKWebViewNavigationDelegate
func webView(_ webView: WKWebView,decidePolicyFor navigationAction: WKNavigationAction,decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
guard let url = navigationAction.request.url,let scheme = url.scheme,scheme.contains("http") else {
// This is not HTTP link - can be a local file or a mailto
decisionHandler(.cancel)
return
}
// This is a HTTP link
open(url: url)
decisionHandler(.allow)
}
在此委托方法中,您将获得WKWebView尝试打开的URL请求.在那里,您可以检查URLRequest的属性并做出相应的响应.
您甚至可以为URLRequest编写一个处理该逻辑的扩展,以便您可以重用它.
extension URLRequest {
var isHttpLink: Bool {
return self.url?.scheme?.contains("http") ?? false
}
}
然后,您可以将委托方法中的长条件更改为：
// WKWebViewNavigationDelegate
func webView(_ webView: WKWebView,decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
guard navigationAction.request.isHttpLink else {
decisionHandler(.allow)
return
}
// ... handle url
