一、創(chuàng)建

WKWebViewConfiguration *config = [[WKWebViewConfiguration alloc] init];

//設(shè)置偏好設(shè)置

config.preferences = [[WKPreferencesalloc] init];

//默認(rèn)為0

config.preferences.minimumFontSize= 10;

//默認(rèn)認(rèn)為YES

config.preferences.javaScriptEnabled= YES;

//在iOS上默認(rèn)為NO，表示不能自動通過窗口打開

config.preferences.javaScriptCanOpenWindowsAutomatically= YES;

//打開網(wǎng)頁間的滑動返回

self.web.allowsBackForwardNavigationGestures=YES;

self.web=[[WKWebViewalloc]initWithFrame:CGRectMake(0, 60, WIDTH, HEIGHT-100) configuration:config];

二、WKNavigationDelegate代理

-?(void)webView:(WKWebView?*)webView?didStartProvisionalNavigation:(WKNavigation?*)navigation;

//當(dāng)內(nèi)容開始返回時調(diào)用

-?(void)webView:(WKWebView?*)webView?didCommitNavigation:(WKNavigation?*)navigation;

//頁面加載完成之后調(diào)用

-?(void)webView:(WKWebView?*)webView?didFinishNavigation:(WKNavigation?*)navigation;

//頁面加載失敗時調(diào)用

-?(void)webView:(WKWebView?*)webView?didFailProvisionalNavigation:(WKNavigation?*)navigation;

頁面跳轉(zhuǎn)的代理分三種：

-?(void)webView:(WKWebView?*)webView?didReceiveServerRedirectForProvisionalNavigation:(WKNavigation?*)navigation;

//在收到響應(yīng)后，決定是否跳轉(zhuǎn)

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

//在發(fā)送請求之前，決定是否跳轉(zhuǎn)

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

WKUIDelegate代理

*??web界面中有彈出警告框時調(diào)用

*??@param?webView實(shí)現(xiàn)該代理的webview

*??@param?message警告框中的內(nèi)容

*??@param?frame主窗口

*??@param?completionHandler警告框消失調(diào)用

-?(void)webView:(WKWebView?*)webView?runJavaScriptAlertPanelWithMessage:(NSString?*)message?initiatedByFrame:(void?(^)())completionHandler;

通過message獲取到JS發(fā)送過來的消息，一定要完成completionHandler（）回調(diào)，不然一直在崩潰

OC向JS傳值、調(diào)用JS方法

[self.web evaluateJavaScript:[NSString stringWithFormat:@"resultData('%@')",jsonstr]completionHandler:nil];

通過evaluateJavaScript方法，向JS注冊方法名以及傳值（傳值格式必須是JS的格式）

JS向OC傳值、調(diào)用JS方法

在初始化WKWebView時,通過configuration.userContentController的addScriptMessageHandler方法，傳入方法名（需要跟JS約定好同一個名字），方便調(diào)用。

[self.web.configuration.userContentControlleraddScriptMessageHandler:self name:@"closeMe"];

在WKScriptMessageHandler代理中根據(jù)之前約定好的方法名獲取參數(shù)

- (void)userContentController:(WKUserCon?tentController*)userContentController

didReceiveScriptMessage:(WKScriptMessage*)message {};

message.name與message.boby