nvue中使用webview相互传参

1.需要注意的是nvue和vue的传参方式有所区别，以下讲解下nvue传参方式，需要vue传参的可查看我的另一个博文https://www.cnblogs.com/lizhao123/p/12005868.html
第一步你需要建一个nvue的文件如下

//nvue 中的webview需要自行设置宽高否则无法展示
<template>
    <view>
        <web-view ref="webview" src="/hybrid/html/local.html" style="width: 500px;height: 600px;" @onPostMessage="getMessage"></web-view>
    </view>
</template>

<script>
    export default {
        data(){
            return {
            }
        },
        onLoad() {
            setTimeout(()=>{
                this.handlePostMessage('测试传参')
            },200)
        },
        methods: {
            handlePostMessage(res) {
                this.$refs.webview.evalJs(`handleMessage()`);  
            },  
            getMessage(e) {
                uni.showModal({
                    content: JSON.stringify(e.detail),
                    showCancel: false
                })
            }
        }
    }
</script>

第二步建个h5页面，我这里用官方的local.html，需要改动下，需要把方法挂载到window下即可触发

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>本地网页</title>
        <style type="text/css">
            .btn {
                display: block;
                margin: 20px auto;
                padding: 5px;
                background-color: #007aff;
                border: 0;
                color: #ffffff;
                height: 40px;
                width: 200px;
            }

            .btn-red {
                background-color: #dd524d;
            }

            .btn-yellow {
                background-color: #f0ad4e;
            }

            .desc {
                padding: 10px;
                color: #999999;
            }
        </style>
    </head>
    <body>
        <p class="desc">web-view 组件加载本地 html 示例，仅在 App 环境下生效。点击下列按钮，跳转至其它页面。</p>
        <div class="btn-list">
            <button class="btn" type="button" data-action="navigateTo">navigateTo</button>
            <button class="btn" type="button" data-action="redirectTo">redirectTo</button>
            <button class="btn" type="button" data-action="navigateBack">navigateBack</button>
            <button class="btn" type="button" data-action="reLaunch">reLaunch</button>
            <button class="btn" type="button" data-action="switchTab">switchTab</button>
        </div>
        <p class="desc" id="lizhao">网页向应用发送消息。注意：小程序端应用会在此页面后退时接收到消息。</p>
        <div class="btn-list">
            <button class="btn btn-red" type="button" id="postMessage">postMessage</button>
        </div>
        <!-- uni 的 SDK -->
        <script type="text/javascript" src="https://unpkg.com/@dcloudio/uni-webview-js@0.0.1/index.js"></script>
        <script type="text/javascript">
            
            window.handleMessage=function(data){
                alert('传来的参数'+data)
            }    
            document.addEventListener('UniAppJSBridgeReady', function() {
                
                document.querySelector('.btn-list').addEventListener('click', function(evt) {
                    var target = evt.target;
                    if (target.tagName === 'BUTTON') {
                        var action = target.getAttribute('data-action');
                        switch (action) {
                            case 'switchTab':
                                uni.switchTab({
                                    url: '/pages/tabBar/API/API'
                                });
                                break;
                            case 'reLaunch':
                                uni.reLaunch({
                                    url: '/pages/tabBar/API/API'
                                });
                                break;
                            case 'navigateBack':
                                uni.navigateBack({
                                    delta: 1
                                });
                                break;
                            default:
                                uni[action]({
                                    url: '/pages/component/button/button'
                                });
                                break;
                        }
                    }
                });
                document.querySelector("#postMessage").addEventListener('click', function() {
                    uni.postMessage({
                        data: {
                            action: 'message888888'
                        }
                    });
                })
            });
        </script>
    </body>
</html>

 

posted @ 2022-07-15 09:36  奔跑吧前端（李钊）  阅读(1995)  评论(0)    收藏  举报