App内嵌H5，H5调用App的方法

最新推荐文章于 2025-02-23 18:31:15 发布

峥峥不爱喝奶茶

最新推荐文章于 2025-02-23 18:31:15 发布

阅读量516

点赞数 3

文章标签：前端 javascript 开发语言

本文链接：https://blog.youkuaiyun.com/weixin_51055997/article/details/137087041

版权

核心：通过WebViewJavascriptBridge建立一个桥梁

github仓库链接: https://github.com/marcuswestin/WebViewJavascriptBridge

function setupWebViewJavascriptBridge(callback){
  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)
}

用法：例如检测是否安装某款app

function checkAppPayIsInstalled(payMethod){
  let plat = getAppPlat()
  if(plat === 'ios'){
    return new Promise((resolve,reject)=> {
      setupWebViewJavascriptBridge(bridge => {
        if (payMethod === 'weixin') {
          //检测微信是否安装
          bridge.callHandler('isWXAppInstalled', '', responseData => {
            responseData?resolve(true):resolve(false)
          })
        } else {
          //检测支付宝是否安装
          bridge.callHandler('isAliPayAppInstalled', '', responseData => {
            responseData?resolve(true):resolve(false)
          })
        }
      })
    })
  }else {
    if(window.nativeBridge){
      return new Promise((resolve,reject)=> {
        if (payMethod === 'weixin') {
          //检测微信是否安装
          let result = window.nativeBridge.isWXAppInstalled();
          result?resolve(true):resolve(false)
        } else {
          //检测支付宝是否安装
          let result = window.nativeBridge.isAliPayAppInstalled();
          result?resolve(true):resolve(false)
        }
      })
    }
  }
}