// 页面开始加载时调用

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

// 当内容开始返回时调用

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

// 页面加载完成之后调用

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

// 页面加载失败时调用

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

// 接收到服务器跳转请求之后调用

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

// 在收到响应后，决定是否跳转

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

// 在发送请求之前，决定是否跳转

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

// 创建一个新的WebView

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

// 界面弹出警告框

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

// 界面弹出确认框

- (void)webView:(WKWebView *)webView runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL result))completionHandler;

// 界面弹出输入框

- (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(nullable NSString *)defaultText initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSString * __nullable result))completionHandler; 

// 从web界面中接收到一个脚本时调用

- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message; 

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

config.preferences.minimumFontSize = 18;

 

self.wkWebView = [[WKWebView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height/2) configuration:config];

[self.view addSubview:self.wkWebView];

 

 

NSString *filePath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];

NSURL *baseURL = [[NSBundle mainBundle] bundleURL];

[self.wkWebView loadHTMLString:[NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:nil] baseURL:baseURL]; 

//1. JS调用OC 添加处理脚本

[userCC addScriptMessageHandler:self name:@"showMobile"];

[userCC addScriptMessageHandler:self name:@"showName"];

[userCC addScriptMessageHandler:self name:@"showSendMsg"];

 

// 在代理方法中处理对应事件

- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {

  NSLog(@"%@",NSStringFromSelector(_cmd));

  NSLog(@"%@",message.body);

 

  if ([message.name isEqualToString:@"showMobile"]) {

    [self showMsg:@"我是下面的小红 手机号是:18870707070"];

  }

   

  if ([message.name isEqualToString:@"showName"]) {

    NSString *info = [NSString stringWithFormat:@"你好 %@, 很高兴见到你",message.body];

    [self showMsg:info];

  }

   

  if ([message.name isEqualToString:@"showSendMsg"]) {

    NSArray *array = message.body;

    NSString *info = [NSString stringWithFormat:@"这是我的手机号: %@, %@ !!",array.firstObject,array.lastObject];

    [self showMsg:info];

  }

}

 

// 2. native调用js

- (IBAction)btnClick:(UIButton *)sender {

  if (!self.wkWebView.loading) {

    if (sender.tag == 123) {

      [self.wkWebView evaluateJavaScript:@"alertMobile()" completionHandler:^(id _Nullable response, NSError * _Nullable error) {

        //TODO

        NSLog(@"%@ %@",response,error);

      }];

    }

     

    if (sender.tag == 234) {

      [self.wkWebView evaluateJavaScript:@"alertName('小红')" completionHandler:nil];

    }

     

    if (sender.tag == 345) {

      [self.wkWebView evaluateJavaScript:@"alertSendMsg('18870707070','周末爬山真是件愉快的事情')" completionHandler:nil];

    }

 

  } else {

    NSLog(@"the view is currently loading content");

  }

} 

function clear() {

  document.getElementById('mobile').innerHTML = ''

  document.getElementById('name').innerHTML = ''

  document.getElementById('msg').innerHTML = ''

}

 

//OC调用JS的方法列表

function alertMobile() {

  //这里已经调用过来了 但是搞不明白为什么alert方法没有响应

  //alert('我是上面的小黄 手机号是:13300001111')

  document.getElementById('mobile').innerHTML = '我是上面的小黄 手机号是:13300001111'

}

 

function alertName(msg) {

  //alert('你好 ' + msg + ', 我也很高兴见到你')

  document.getElementById('name').innerHTML = '你好 ' + msg + ', 我也很高兴见到你'

}

 

function alertSendMsg(num,msg) {

  //window.alert('这是我的手机号:' + num + ',' + msg + '!!')

  document.getElementById('msg').innerHTML = '这是我的手机号:' + num + ',' + msg + '!!'

}

 

//JS响应方法列表

function btnClick1() {

  window.webkit.messageHandlers.showMobile.postMessage(null)

}

 

function btnClick2() {

  window.webkit.messageHandlers.showName.postMessage('xiao黄')

}

 

function btnClick3() {

  window.webkit.messageHandlers.showSendMsg.postMessage(['13300001111', 'Go Climbing This Weekend !!!'])

}