WKWebView简单使用

Posted 2020-09-19 轩辕辉

 最近没事看了一下 WKWebView ,就把自己总结的记录一下,方便查看.

注:一下为个人总结,会有不足,热烈欢迎大神指点

1> 创建
导入:#import <WebKit/WebKit.h>
WKWebView *webView = [[WKWebView alloc] initWithFrame:self.view.bounds];
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"https://www.baidu.com"]]];
[self.view addSubview:webView];

2> WKWebView的代理有三个 
WKUIDelegate,WKNavigationDelegate,WKScriptMessageHandler

3> 代理方法
3.1> WKUIDelegate的代理方法
/** 创建新的webView 指定配置对象、导航动作对象、window特性 */
-(WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures{}
/** 显示一个与JS交互的确认Alert(弹框) */
- (void)webView:(WKWebView *)webView runjavascriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL result))completionHandler{}
/** 弹出一个输入框（与JS交互的） */
- (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(nullable NSString *)defaultText initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSString * _Nullable result))completionHandler{}
/** 显示一个与JS交互的警告Alert(弹框) */
- (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler{}
/** webview关闭时的回调 */
- (void)webViewDidClose:(WKWebView *)webView{}
3.2> WKNavigationDelegate代理方法
#pragma mark 导航监听
/** 在发送请求之前，决定是否跳转 */
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{}
/** 收到身份验证 */
- (void)webView:(WKWebView *)webView didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable credential))completionHandler{}
/** 在收到响应后，决定是否跳转 */
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler{}
/** 接收到服务器跳转请求之后再执行 */
- (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(null_unspecified WKNavigation *)navigation{}
/** 页面加载失败 */
- (void)webView:(WKWebView *)webView didFailNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error{}
/** WKWebView终止 */
- (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView{}

#pragma mark 网页监听
/** 页面开始加载 */
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(null_unspecified WKNavigation *)navigation{}
/** 当内容开始返回时调用 */
- (void)webView:(WKWebView *)webView didCommitNavigation:(null_unspecified WKNavigation *)navigation{}
/** 页面加载完成之后调用 */
- (void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation{}
/** 页面加载失败时调用 */
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error{}

3.3> WKScriptMessageHandler代理方法
/** 网页通过JS把消息发送给OC */
- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message{}