js调用ios和安卓方法

安卓：

window.AndroidWebView.方法名(参数);
window.AndroidWebView.productDetail(1989);

ios:

   function isbrowser() {
            // 浏览器判断
            return window.browser = {
                versions: function () {
                    var u = navigator.userAgent,
                            app = navigator.appVersion;
                    return { //移动终端浏览器版本信息
                        trident: u.indexOf('Trident') > -1, //IE内核
                        presto: u.indexOf('Presto') > -1, //opera内核
                        webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
                        gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //火狐内核
                        mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
                        ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
                        android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或uc浏览器
                        iPhone: u.indexOf('iPhone') > -1, //是否为iPhone或者QQHD浏览器
                        iPad: u.indexOf('iPad') > -1, //是否iPad
                        webApp: u.indexOf('Safari') == -1 //是否web应该程序，没有头部与底部
                    };
                }(),
                language: (navigator.browserLanguage || navigator.language).toLowerCase()

            };
        }
  var productDetail;
   function InitWebViewJavascriptBridge(callback) {            var ua = window.navigator.userAgent.toLowerCase();            if (window.AndroidWebView || !isbrowser().versions.ios || ua.match(/MicroMessenger/i) == 'micromessenger') {                return;            }            function _callback(bridge) {                window.WebViewJavascriptBridge = bridge;                if (callback) callback(bridge);            }            if (window.WebViewJavascriptBridge) {                _callback(WebViewJavascriptBridge);                return;            }            if (window.WVJBCallbacks) {                window.WVJBCallbacks.push(_callback);                return;            }            window.WVJBCallbacks = [_callback];            var WVJBIframe = document.createElement('iframe');            WVJBIframe.style.display = 'none';            WVJBIframe.src = 'wvjbscheme://__BRIDGE_LOADED__';            document.documentElement.appendChild(WVJBIframe);            setTimeout(function () {                document.documentElement.removeChild(WVJBIframe)            }, 0)        }        InitWebViewJavascriptBridge(function (bridge) {            productDetail = function (id) {//注入handlerName为IOSEventClick               bridge.callHandler('IOSEventClick', {                    code: id,                    type: "productDetail",                }, function (responseData) {                    // log('IOSEventClick', responseData);                })            }        });