WKWebView生命周期

WebKit 加载生命周期代理方法

① WKNavigationDelegate 方法

-[BaseWKWebViewController webView:decidePolicyForNavigationAction:decisionHandler:]

 -[BaseWKWebViewController webView:didStartProvisionalNavigation:]

 -[BaseWKWebViewController webView:didReceiveAuthenticationChallenge:completionHandler:]

 -[BaseWKWebViewController webView:decidePolicyForNavigationResponse:decisionHandler:]

 -[BaseWKWebViewController webView:didCommitNavigation:]

 -[BaseWKWebViewController webView:didReceiveAuthenticationChallenge:completionHandler:]

 -[BaseWKWebViewController webView:didFinishNavigation:]

  @protocol WKNavigationDelegate <NSObject>

  @optional
// 请求之前，决定是否要跳转:用户点击网页上的链接，需要打开新页面时，将先调用这个方法。
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler; 

// 页面开始加载时调用
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(null_unspecified WKNavigation *)navigation; 

// 接收到响应数据后，决定是否跳转
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler; 

// 主机地址被重定向时调用
- (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(null_unspecified WKNavigation *)navigation; 

// 当开始加载主文档数据失败时调用
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error; 

// 当内容开始返回时调用
- (void)webView:(WKWebView *)webView didCommitNavigation:(null_unspecified WKNavigation *)navigation; 

// 页面加载完毕时调用
- (void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation; 

// 当主文档已committed时，如果发生错误将进行调用
- (void)webView:(WKWebView *)webView didFailNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error; 

// 如果需要证书验证，进行验证，一般使用默认证书策略即可 
- (void)webView:(WKWebView *)webView didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *__nullable credential))completionHandler; 

// 9.0才能使用，web内容处理中断时会触发，可针对该情况进行reload操作，可解决部分白屏问题 
- (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView NS_AVAILABLE(10_11, 9_0); 

@end

原文链接：blog.csdn.net/Forever_wj/…