vue实现与安卓、IOS交互的方法

function setupWebViewJavascriptBridge (callback) {
 if (window.WebViewJavascriptBridge) {
 return callback(window.WebViewJavascriptBridge)
 }
 if (window.WVJBCallbacks) {
 return window.WVJBCallbacks.push(callback)
 }
 window.WVJBCallbacks = [callback]
 let WVJBIframe = document.createElement('iframe')
 WVJBIframe.style.display = 'none'
 WVJBIframe.src = 'https://__bridge_loaded__'
 document.documentElement.appendChild(WVJBIframe)
 setTimeout(() => {
 document.documentElement.removeChild(WVJBIframe)
 }, 0)
}
function callhandler (name, data, callback) {
 setupWebViewJavascriptBridge(function (bridge) {
 bridge.callHandler(name, data, callback)
 })
}

callhandler(functionName: string, params: object, res => {})

registerhandler (name, callback) {
 // 安卓
 window[name] = res => {
 let data = JSON.parse(res)
 callback(data)
 }
 // IOS
 setupWebViewJavascriptBridge(function (bridge) {
 bridge.registerHandler(name, function (data, responseCallback) {
 callback(data, responseCallback)
 })
 })
}

window.HTTP_TEST.functionName()

window['functionName'] = res => {}