js和原生交互

// js 原生交互代码必写
function connectWebViewJavascriptBridge(callback) {
  if (window.WebViewJavascriptBridge) {
    callback(window.WebViewJavascriptBridge);
  } else {
    document.addEventListener(
      'WebViewJavascriptBridgeReady',
      function() {
        callback(window.WebViewJavascriptBridge);
      },
      false,
    );
    if (!isAndroid) {
      if (window.WebViewJavascriptBridge) {
        return callback(window.WebViewJavascriptBridge);
      }
      if (window.WVJBCallbacks) {
        return window.WVJBCallbacks.push(callback);
      }
      window.WVJBCallbacks = [callback];
      const WVJBIframe = document.createElement('iframe');
      WVJBIframe.style.display = 'none';
      WVJBIframe.src = 'https://__bridge_loaded__';
      document.documentElement.appendChild(WVJBIframe);
      setTimeout(function() {
        document.documentElement.removeChild(WVJBIframe);
      }, 0);
    }
  }
}

// 初始化 ios
connectWebViewJavascriptBridge(function(bridge) {
  bridge.registerHandler('callRefreshAccessToken', function(data, cb) {
    //回调函数里处理自己的业务逻辑
    console.log(data, callbackAll);
  });
});
// ios 处理err
connectWebViewJavascriptBridge(function(bridge) {
  bridge.registerHandler('accessTokenError', function(data, cb) {
    console.log('报错了')
  });
});
// 初始化 android
  window.callRefreshAccessToken = function(data) {
    // 获取原生传递的token 信息
    console.log(data, callbackAll);
  };
  // android err
  window.accessTokenError = function() {
    console.log('报错了')
  };

• 其中，callRefreshAccessToken 和 accessTokenError函数名是和原生协商定的（根据自己项目的协议改）