IOS与H5交互(WKWebView)

先上H5代码

<meta charset="utf-8">
<div  style="font-size: 1.6rem;color: rgba(104,187,205,1)">
    <span style="margin-right: 15px;" onclick="_password_jump()" >未设置密码/忘记密码？</span>
</div>

<div onclick="window.location.href='https://www.baidu.com'">点击我跳转链接</div>

<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script>

function _password_jump(){
    var rd_type = "password";
 
 
    if(isiOSPlatform()){
        var shopping_ios = { name: "view_record",type : rd_type};
        window.webkit.messageHandlers.main_onItemClick.postMessage(shopping_ios);
        
    }

}


 function isiOSPlatform() {
     var ua = navigator.userAgent.toLowerCase();
     if (/iphone|ipad|ipod/.test(ua)) {
         return true;
     } else {
         return false;
     }
 }


function payResult(str){
  if(str == "123"){
     window.location.href='https://www.hao123.com/';
  }
}

window.payResult = function(){
    window.location.href='https://www.baidu.com/';
}
</script>

继续OC代码

.h
#import <WebKit/WebKit.h>
<WKNavigationDelegate, WKUIDelegate, WKScriptMessageHandler>

.m
#pragma 初始化WKWebview
-(void)initWebView{
 // 创建配置
WKWebViewConfiguration *config = [[WKWebViewConfiguration alloc] init];
 // 创建UserContentController（提供JavaScript向webView发送消息的方法）
    
_userContent = [[WKUserContentController alloc] init];
 // 添加消息处理，注意：self指代的对象需要遵守WKScriptMessageHandler协议，结束时需要移除
[_userContent addScriptMessageHandler:self name:@"main_onItemClick"];

 // 将UserConttentController设置到配置文件
 config.userContentController = _userContent;
    
self.WKWebView = [[WKWebView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT) configuration:config];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@",_urlStr]];

NSMutableURLRequest *requ = [NSMutableURLRequest requestWithURL:url];
// 给header添加token
// [requ addValue:UserDefulsGetValue(token) forHTTPHeaderField:@"Authorization"];
self.WKWebView.navigationDelegate = self;
self.WKWebView.UIDelegate = self;
[self.WKWebView loadRequest:requ];
}

#pragma 左滑动返回
-(void)addPopTap{
    WeakSelf(self)
    [App_Class popOrDissPresentWithView:self.WKWebView block:^{
        if (![weakself.WKWebView canGoBack]) {
            [weakself.navigationController popViewControllerAnimated:YES];
            return;
        }
        
      // 传值操作,这里H5执行跳转https://www.hao123.com
        NSString * jsStr = [NSString stringWithFormat:@"payResult('%@')",@"123"];
        [self.WKWebView evaluateJavaScript:jsStr completionHandler:^(id _Nullable response, NSError * _Nullable error) {
               NSLog(@"res:%@----%@",response,error)
               
         }];
    }];
    
       // 不传值操作,这里H5执行跳转https://www.baidu.com
        [self.WKWebView evaluateJavaScript:@"payResult()" completionHandler:^(id _Nullable response, NSError * _Nullable error) {
               NSLog(@"res:%@----%@",response,error)
               
         }];
    }];
}


#pragma 链接变动
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{
    NSLog(@"urlScheme:%@",navigationAction.request.URL.scheme);
    NSLog(@"urlStr:%@",navigationAction.request.URL.absoluteString);
    // 这里可以检测到点击"点击我跳转链接" 的navigationAction.request.URL.absoluteString为"https://www.baidu.com"
    decisionHandler(WKNavigationActionPolicyAllow);
}


#pragma 点击事件监听
- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
    NSLog(@"%@---%@", message.name, message.body)
    if ([@"main_onItemClick" isEqualToString:message.name]) {
        // 通过"main_onItemClick"可以获取到"未设置密码/忘记密码？"点击事件
    }
 }