JSBridge示例

let isAndroid = navigator.userAgent.indexOf('Android') > -1 || navigator.userAgent.indexOf('Adr') > -1;
let isiOS = !!navigator.userAgent.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);

//这是必须要写的，用来创建一些设置
function setupWebViewJavascriptBridge(callback) {
    //Android使用
    if (isAndroid) {
        if (window.WebViewJavascriptBridge) {
            callback(window.WebViewJavascriptBridge);
        } else {
            document.addEventListener(
                'WebViewJavascriptBridgeReady',
                () => {
                    callback(window.WebViewJavascriptBridge);
                },
                false
            );
        }
        console.log('tag', '安卓');
        sessionStorage.phoneType = 'android';
    }

    //iOS使用
    if (isiOS) {
        if (window.WebViewJavascriptBridge) {
            return callback(window.WebViewJavascriptBridge);
        }
        if (window.WVJBCallbacks) {
            return window.WVJBCallbacks.push(callback);
        }
        window.WVJBCallbacks = [callback];
        var WVJBIframe = document.createElement('iframe');
        WVJBIframe.style.display = 'none';
        WVJBIframe.src = 'wvjbscheme://__BRIDGE_LOADED__';
        document.documentElement.appendChild(WVJBIframe);
        setTimeout(() => {
            document.documentElement.removeChild(WVJBIframe);
        }, 0);
        console.log('tag', 'ios');
        sessionStorage.phoneType = 'ios';
    }
}
//注册回调函数，第一次连接时调用 初始化函数(android需要初始化,ios不用)
setupWebViewJavascriptBridge((bridge) => {
    if (isAndroid) {
        //初始化
        bridge.init((message, responseCallback) => {
            var data = {
                'Javascript Responds': 'Wee!'
            };
            responseCallback(data);
        });
    }
});

export default {
    // js调APP方法 （参数分别为:app提供的方法名  传给app的数据  回调）
    callHandler(name, data, callback) {
        setupWebViewJavascriptBridge((bridge) => {
            bridge.callHandler(name, data, callback);
        });
    },
    // APP调js方法 （参数分别为:js提供的方法名  回调）
    registerHandler(name, callback) {
        setupWebViewJavascriptBridge((bridge) => {
            bridge.registerHandler(name, (data, responseCallback) => {
                callback(data, responseCallback);
            });
        });
    }
};

import Bridge from './JSbridge.js'
Vue.prototype.$bridge = Bridge

<template>
    
</template>
<script>
export default {
  data () {
    return {
    }
  },
// 注册方法
  methods: {
        // js调app
        sendMsg(){
            let msg = this.msg
            this.$bridge.callHandler('dataToAndroid',msg,(res)=>{
                alert('获取app响应数据:'+res)
                this.test = res
            })
        },

        // app调js
        getAPPDate() {
            this.$bridge.registerHandler('dataToJs', (data, responseCallback) => {
                alert('app主动调用js方法，传入数据:' + data)
                responseCallback(data)
            })
        }
  },
  mounted(){
    this.getAPPDate()
  }
}
</script>