通过注入js代码实现

• JS代码

// 创建JSBridge对象
var JSBridge = {};
var callbackPoll = {};
(function initialize() { 
    // call方法
    JSBridge.call = function(func, param, callback) {
        if ('string' !== typeof func) {
            return; }
        if ('function' === typeof param) { callback = param;
            param = null; } else if (typeof param !== 'object') { param = null; }
        var clientId = '' + new Date().getTime() + (Math.random());
        if ('function' === typeof callback) { callbackPoll[clientId] = callback; }
        // 组装json数据 发送给native
        var invokeMsg = JSON.stringify({ func: func, param: param, msgType: 'call', clientId: clientId });
        var url = "http://xiaoying/clickevent?param=" + invokeMsg;
        // 通过改变document.location来实现数据传递 iOS端在startLoad截取解析
        document.location = url;
        return url; };
        // 回调方法 传入clientId param
    JSBridge.callback = function(clientId, param) {
        var invokeMsg = JSON.stringify({ clientId: clientId, param: param });
        var url = "http://xiaoying/clickevent?param=" + invokeMsg;
        document.location = url;
        return url; };
    JSBridge.trigger = function(name, param, clientId) { console.log('bridge.trigger ' + name);
        if (name) {
            var evt = document.createEvent('Events');
            evt.initEvent(name, false, true);
            if (typeof param === 'object') {
                for (var k in param) { evt[k] = param[k]; } }
            evt.clientId = clientId;
            var prevent = !document.dispatchEvent(evt);
            if (clientId && name === 'back') { JSBridge.callback(clientId, { prevent: prevent }); } } };
        // native端调用此方法发送数据即可
    JSBridge._invokeJS = function(resp) { console.log(resp);
        resp = JSON.parse(resp);
        console.log("invokeJS msgType " + resp.msgType + " func " + resp.func);
        console.log('parse end.');
        if (resp.msgType === 'callback') {
            var func = callbackPoll[resp.clientId];
            if (!(typeof resp.keepCallback == 'boolean' && resp.keepCallback)) { delete callbackPoll[resp.clientId]; }
            if ('function' === typeof func) { setTimeout(function() { func(resp.param); }, 1); } } else if (resp.msgType === 'call') { resp.func && this.trigger(resp.func, resp.param, resp.clientId); } };
    JSBridge.startupParams = '{startupParams}';
    var readyEvent = document.createEvent('Events');
    readyEvent.initEvent('JSBridgeReady', false, false);
    var docAddEventListener = document.addEventListener;

    // js添加监听方法  name func即可  native传递数据即可
    document.addEventListener = function(name, func) {
        if (name === readyEvent.type) { setTimeout(function() { func(readyEvent); }, 1); } else { docAddEventListener.apply(document, arguments); } };
    document.dispatchEvent(readyEvent); 
})();```

- 注入

• (void)webViewDidFinishLoad:(UIWebView *)webView{
  // 注入JS代码
  [self addJSClickEvent];
  }```

• 移动端截取

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
    
    NSLog(@"shouldStartLoadWithRequest in:%@",request.URL.absoluteString);
    NSString *url = request.URL.absoluteString;
    
    NSString *dataGBK = [url stringByRemovingPercentEncoding];
    
    if(url != nil && [url hasPrefix:JS_STRING_URL_PRFIX])
    {
        if(dataGBK != nil && dataGBK.length > JS_STRING_URL_PRFIX.length)
        {
            // 获取json数据
            NSString *param = [dataGBK substringFromIndex:JS_STRING_URL_PRFIX.length];
            NSLog(@"param:%@",param);
            
            // 转为NSDictionary H5Container模型
            NSDictionary *dic = [XYH5ContainerTool objectFromJSONStringWithStr:param];
            if (!self.h5Container) {
                self.h5Container = [[H5Container alloc] init];
                self.h5Container.keepCallback = NO;    // default is YES;
            }
            
            [self.h5Container setValuesForKeysWithDictionary:dic];
            NSLog(@"url传递过来数据信息为%@",dic);
            
            // 解析
            [self parseWithH5Container:self.h5Container];
            
        }
        return NO;
    }
    return YES;
}```

- 处理

• (void)parseWithH5Container:(H5Container *)h5Container{
  if ([h5Container.func isEqualToString:XYJS_CALL_POP_WINDOW]) {

    [self popWindowWithParam:h5Container.param];
  

  }
  }```

#pragma mark - pop window
- (void)popWindowWithParam:(NSDictionary *)param{
    
    [self.navigationController popViewControllerAnimated:YES];
}```