js与android和ios原生交互

1、实现原生与js交互

    function setupWebViewJavascriptBridge(callback) {    //android使用    if (window.WebViewJavascriptBridge) {        callback(window.WebViewJavascriptBridge)    } else {        document.addEventListener(            'WebViewJavascriptBridgeReady'            , function() {                callback(window.WebViewJavascriptBridge)            },            false        );    }    //ios使用    if (window.WebViewJavascriptBridge) { return callback(WebViewJavascriptBridge); }    if (window.WVJBCallbacks) { return window.WVJBCallbacks.push(callback); }    window.WVJBCallbacks = [callback];    var WVJBIframe = document.createElement('iframe');    WVJBIframe.style.display = 'none';    WVJBIframe.src = 'https://__bridge_loaded__';    document.documentElement.appendChild(WVJBIframe);    setTimeout(function() { document.documentElement.removeChild(WVJBIframe) }, 0)}setupWebViewJavascriptBridge(function(bridge) {//oc或android掉js    bridge.registerHandler('result', function(data, responseCallback) {        if(data.errorCode == null  || data.errorCode == "")            window.location.href = "refresh.html?result=success";        else            window.location.href = "refresh.html?result=fail";    });    //js掉原生    $(document).on('click', '#call', function() {        bridge.callHandler('call', {'sessionId':$.cookie("sessionId")}, function(response) {            //处理oc过来的回调            var responseData = { 'Javascript Says':'Right back atcha!' };            responseCallback(responseData);        });    });});

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