基于uniapp+vue3+uv-ui聊天实例|uni-app+vite4仿微信app应用

uniapp_vue3_wechat 一款基于最新跨端技术uni-app+vue3+vite4+pinia2+uni-ui原创研发的三端(h5+小程序+APP端)仿制微信聊天实例。

预览效果

编译到h5+小程序+App端效果如下：

整个项目采用vue3 setup语法结构编码开发。

运用技术

• 开发工具：HbuilderX 4.0.8
• 技术框架：Uniapp+Vue3+Pinia2+Vite4.x
• UI组件库：uni-ui+uv-ui
• 弹框组件：uv3-popup（uniapp+vue3多端自定义弹框组件）
• 自定义组件：uv3-navbar+uv3-tabbar组件
• 缓存服务：pinia-plugin-unistorage
• 编译支持：H5+小程序+APP端

项目结构

入口main.js配置

/**
 * 入口文件 main.js
*/

import { createSSRApp } from 'vue'
import App from './App'

// 引入pinia状态管理
import pinia from '@/pinia'

export function createApp() {
    const app = createSSRApp(App)
    app.use(pinia)
    return {
        app,
        pinia
    }
}

另外支持编译到web端，以750px像素展示。

该项目已经更新上线到工房，如果恰好有需要，欢迎自己去拍哈~ 谢谢各位小伙伴们的支持！

https://gf.bilibili.com/item/detail/1105801011

App.vue配置

采用vue3 setup语法，初始化一些自定义导航条参数，页面样式。

<script setup>
    import { provide } from 'vue'
    import { onLaunch, onShow, onHide, onPageNotFound } from '@dcloudio/uni-app'
    
    onLaunch(() => {
        console.log('App Launch')
        
        uni.hideTabBar()
        loadSystemInfo()
    })
    
    onShow(() => {
        console.log('App Show')
    })
    
    onHide(() => {
        console.log('App Hide')
    })
    
    onPageNotFound((e) => {
        console.warn('Route Error：', `${e.path}`)
    })
    
    // 获取系统设备信息
    const loadSystemInfo = () => {
        uni.getSystemInfo({
            success: (e) => {
                // 获取手机状态栏高度
                let statusBar = e.statusBarHeight
                let customBar
                
                // #ifndef MP
                customBar = statusBar + (e.platform == 'android' ? 50 : 45)
                // #endif
                
                // #ifdef MP-WEIXIN
                // 获取胶囊按钮的布局位置信息
                let menu = wx.getMenuButtonBoundingClientRect()
                // 导航栏高度 = 胶囊下距离 + 胶囊上距离 - 状态栏高度
                customBar = menu.bottom + menu.top - statusBar
                // #endif
                
                // #ifdef MP-ALIPAY
                customBar = statusBar + e.titleBarHeight
                // #endif
                
                // 由于globalData在vue3 setup存在兼容性问题，改为provide/inject替代方案
                provide('globalData', {
                    statusBarH: statusBar,
                    customBarH: customBar,
                    screenWidth: e.screenWidth,
                    screenHeight: e.screenHeight,
                    platform: e.platform
                })
            }
        })
    }
</script>

<style>
    /* #ifndef APP-NVUE */
    @import 'static/fonts/iconfont.css';
    /* #endif */
</style>
<style lang="scss">
    @import 'styles/reset.scss';
    @import 'styles/layout.scss';
</style>

uni-vue3-chat布局

整体项目结构采用顶部导航区域+主体内容区+底部区域三个大模块。

<!-- 公共布局模板 -->

<!-- #ifdef MP-WEIXIN -->
<script>
    export default {
        /**
         * 解决小程序class、id透传问题
         * manifest.json中配置mergeVirtualHostAttributes: true, 在微信小程序平台不生效，组件外部传入的class没有挂到组件根节点上，在组件中增加options: { virtualHost: true }
         * https://github.com/dcloudio/uni-ui/issues/753
         */
        options: { virtualHost: true }
    }
</script>
<!-- #endif -->

<script setup>
    const props = defineProps({
        // 是否显示自定义tabbar
        showTabBar: { type: [Boolean, String], default: false },
    })
</script>

<template>
    <view class="uv3__container flexbox flex-col flex1">
        <!-- 顶部插槽 -->
        <slot name="header" />
        
        <!-- 内容区 -->
        <view class="uv3__scrollview flex1">
            <slot />
        </view>
        
        <!-- 底部插槽 -->
        <slot name="footer" />
        
        <!-- tabbar栏 -->
        <uv3-tabbar v-if="showTabBar" hideTabBar fixed />
    </view>
</template>

uniapp仿微信九宫格图像组

<script setup>
    import { onMounted, ref, computed, watch, getCurrentInstance } from 'vue'
    
    const props = defineProps({
        // 图像组
        avatar: { type: Array, default: null },
    })
    
    const instance = getCurrentInstance()
    
    const uuid = computed(() => Math.floor(Math.random() * 10000))
    const avatarPainterId = ref('canvasid' + uuid.value)
    
    const createAvatar = () => {
        const ctx = uni.createCanvasContext(avatarPainterId.value, instance)
        // 计算图像在画布上的坐标
        const avatarSize = 12
        const gap = 2
        for(let i = 0, len = props.avatar.length; i < len; i++) {
            const row = Math.floor(i / 3)
            const col = i % 3
            const x = col * (avatarSize + gap)
            const y = row * (avatarSize + gap)
            
            ctx.drawImage(props.avatar[i], x, y, avatarSize, avatarSize)
        }
        ctx.draw(false, () => {
            // 输出临时图片
            /* uni.canvasToTempFilePath({
                canvasId: avatarPainterId.value,
                success: (res) => {
                    console.log(res.tempFilePath)
                }
            }) */
        })
    }
    
    onMounted(() => {
        createAvatar()
    })
    
    watch(() => props.avatar, () => {
        createAvatar()
    })
</script>

<template>
    <template v-if="avatar.length > 1">
        <view class="uv3__avatarPainter">
            <canvas :canvas-id="avatarPainterId" class="uv3__avatarPainter-canvas"></canvas>
        </view>
    </template>
    <template v-else>
        <image class="uv3__avatarOne" :src="avatar[0]" />
    </template>
</template>

<style lang="scss" scoped>
    .uv3__avatarPainter {background-color: #eee; border-radius: 5px; overflow: hidden; padding: 2px; height: 44px; width: 44px;}
    .uv3__avatarPainter-canvas {height: 100%; width: 100%;}
    .uv3__avatarOne {border-radius: 5px; height: 44px; width: 44px;}
</style>

uniapp+vue3自定义Navbar+Tabbar组件

<uv3-navbar :back="true" title="标题内容" bgcolor="#07c160" color="#fff" fixed zIndex="1010" />

<uv3-navbar custom bgcolor="linear-gradient(to right, #07c160, #0000ff)" color="#fff" center transparent zIndex="2024">
    <template #back><uni-icons type="close" /></template>
    <template #backText><text>首页</text></template>
    <template #title>
        <image src="/static/logo.jpg" style="height:20px;width:20px;" /> Admin
    </template>
    <template #right>
        <view class="ml-20" @click="handleAdd"><text class="iconfont icon-tianjia"></text></view>
        <view class="ml-20"><text class="iconfont icon-msg"></text></view>
    </template>
</uv3-navbar>

uniapp+vue3自定义手机端弹窗

uv3-popup支持组件+函数两种方式调用。

<script setup>
    import { onMounted, ref, computed, watch, nextTick, getCurrentInstance } from 'vue'
    
    const props = defineProps({
        ...
    })
    const emit = defineEmits([
        'update:modelValue',
        'open',
        'close'
    ])
    
    const instance = getCurrentInstance()
    
    const opts = ref({
        ...props
    })
    const visible = ref(false)
    const closeAnim = ref(false)
    const stopTimer = ref(null)
    const oIndex = ref(props.zIndex)
    const uuid = computed(() => Math.floor(Math.random() * 10000))
    
    const positionStyle = ref({ position: 'absolute', left: '-999px', top: '-999px' })
    
    const toastIcon = {
        ...
    }
    
    // 打开弹框
    const open = (options) => {
        if(visible.value) return
        opts.value = Object.assign({}, props, options)
        // console.log('-=-=混入参数：', opts.value)
        visible.value = true
        
        // nvue 的各组件在安卓端默认是透明的，如果不设置background-color，可能会导致出现重影的问题
        // #ifdef APP-NVUE
        if(opts.value.customStyle && !opts.value.customStyle['background'] && !opts.value.customStyle['background-color']) {
            opts.value.customStyle['background'] = '#fff'
        }
        // #endif
        
        let _index = ++index
        oIndex.value = _index + parseInt(opts.value.zIndex)
        
        emit('open')
        typeof opts.value.onOpen === 'function' && opts.value.onOpen()
        
        // 长按处理
        if(opts.value.follow) {
            nextTick(() => {
                let winW = uni.getSystemInfoSync().windowWidth
                let winH = uni.getSystemInfoSync().windowHeight
                // console.log('坐标点信息：', opts.value.follow)
                getDom(uuid.value).then(res => {
                    // console.log('Dom尺寸信息：', res)
                    if(!res) return
                    
                    let pos = getPos(opts.value.follow[0], opts.value.follow[1], res.width+15, res.height+15, winW, winH)
                    positionStyle.value.left = pos[0] + 'px'
                    positionStyle.value.top = pos[1] + 'px'
                })
            })
        }
        
        if(opts.value.time) {
            if(stopTimer.value) clearTimeout(stopTimer.value)
            stopTimer.value = setTimeout(() => {
                close()
            }, parseInt(opts.value.time) * 1000)
        }
    }
    
    // 关闭弹框
    const close = () => {
        if(!visible.value) return
        
        closeAnim.value = true
        setTimeout(() => {
            visible.value = false
            closeAnim.value = false
            
            emit('update:modelValue', false)
            emit('close')
            typeof opts.value.onClose === 'function' && opts.value.onClose()
            
            positionStyle.value.left = '-999px'
            positionStyle.value.top = '-999px'
            
            stopTimer.value && clearTimeout(stopTimer.value)
        }, 200)
    }
    
    // 点击遮罩层
    const handleShadeClick = () => {
        if(JSON.parse(opts.value.shadeClose)) {
            close()
        }
    }
    
    // 按钮事件
    const handleBtnClick = (e, index) => {
        let btn = opts.value.btns[index]
        if(!btn?.disabled) {
            console.log('按钮事件类型：', typeof btn.click)
            
            typeof btn.click === 'function' && btn.click(e)
        }
    }
    
    // 获取dom宽高
    const getDom = (id) => {
        return new Promise((resolve, inject) => {
            // uniapp vue3中 uni.createSelectorQuery().in(this) 会报错__route__未定义  https://ask.dcloud.net.cn/question/140192
            uni.createSelectorQuery().in(instance).select('#uapopup-' + id).fields({
                size: true,
            }, data => {
                resolve(data)
            }).exec()
        })
    }
    
    // 自适应坐标点
    const getPos = (x, y, ow, oh, winW, winH) => {
        let l = (x + ow) > winW ? x - ow : x
        let t = (y + oh) > winH ? y - oh : y
        return [l, t]
    }
    
    onMounted(() => {
        if(props.modelValue) {
            open()
        }
    })

    watch(() => props.modelValue, (val) => {
        // console.log(val)
        if(val) {
            open()
        }else {
            close()
        }
    })
    
    defineExpose({
        open,
        close
    })
</script>

uniapp+vue3聊天模块

目前该插件已经免费发布到插件市场，供需要的小伙伴下载使用。

<!-- 语音面板 -->
<view v-if="voicePanelEnable" class="uv3__voicepanel-popup">
    <view class="uv3__voicepanel-body flexbox flex-col">
        <!-- 取消发送+语音转文字 -->
        <view v-if="!voiceToTransfer" class="uv3__voicepanel-transfer">
            <!-- 提示动效 -->
            <view class="animtips flexbox" :class="voiceType == 2 ? 'left' : voiceType == 3 ? 'right' : null"><Waves :lines="[2, 3].includes(voiceType) ? 10 : 20" /></view>
            <!-- 操作项 -->
            <view class="icobtns flexbox">
                <view class="vbtn cancel flexbox flex-col" :class="{'hover': voiceType == 2}" @click="handleVoiceCancel"><text class="vicon uv3-icon uv3-icon-close"></text></view>
                <view class="vbtn word flexbox flex-col" :class="{'hover': voiceType == 3}"><text class="vicon uv3-icon uv3-icon-word"></text></view>
            </view>
        </view>
        
        <!-- 语音转文字(识别结果状态) -->
        <view v-if="voiceToTransfer" class="uv3__voicepanel-transfer result fail">
            <!-- 提示动效 -->
            <view class="animtips flexbox"><uni-icons type="info-filled" color="#fff" size="20"></uni-icons><text class="c-fff">未识别到文字</text></view>
            <view class="icobtns flexbox">
                <view class="vbtn cancel flexbox flex-col" @click="handleVoiceCancel"><text class="vicon uv3-icon uv3-icon-chexiao"></text>取消</view>
                <view class="vbtn word flexbox flex-col"><text class="vicon uv3-icon uv3-icon-audio"></text>发送原语音</view>
                <view class="vbtn check flexbox flex-col"><text class="vicon uv3-icon uv3-icon-duigou"></text></view>
            </view>
        </view>
        
        <!-- 背景语音图 -->
        <view class="uv3__voicepanel-cover">
            <image v-if="!voiceToTransfer" src="/static/voice_bg.webp" :webp="true" mode="widthFix" style="width: 100%;" />
        </view>
        <!-- // 提示文字 -->
        <view v-if="!voiceToTransfer" class="uv3__voicepanel-tooltip">{{voiceTypeMap[voiceType]}}</view>
        <!-- 背景图标 -->
        <view v-if="!voiceToTransfer" class="uv3__voicepanel-fixico"><text class="uv3-icon uv3-icon-audio fs-50"></text></view>
    </view>
</view>

Okay，以上就是uni-app+vue3开发微信聊天实战项目的一些分享，希望对大家有所帮助~

https://segmentfault.com/a/1190000044796609

https://segmentfault.com/a/1190000044741696

https://segmentfault.com/a/1190000044675519