vue实现与安卓、IOS交互的方法

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

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

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

window.HTTP_TEST.functionName()

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