uniapp-welive：基于uni-app+vue3+pinia多端直播商城实例|uniapp仿抖音直播

uni-vue3-welive一款基于uniapp+vue3+pinia等技术开发的跨多平台仿制微信/抖音短视频直播商城实例项目。

技术框架

• 编辑器：HbuilderX 3.98
• 框架技术：Uniapp+Vue3+Vite4+Nvue+Pinia
• UI组件库：uv-ui+vk-uview
• 弹框组件：uaPopup（uniapp封装多端弹框组件）
• 自定义组件：uaNavbar+uaTabbar组件
• 本地缓存：pinia-plugin-unistorage
• 编译支持：H5+小程序+APP端

项目结构目录

uniapp-dylive项目包含了短视频+直播+商品详情+确认订单+订单详情+购物车等多种功能。

入口main.js

/**
 * 入口配置
 */

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

// 引入Pinia状态管理
import Pinia from '@/store'

// 引入vk-uview-ui组件库
import VKuview from '@/uni_modules/vk-uview-ui'

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

uniapp+vue3自定义导航栏+菜单栏

项目中顶部导航条及底部tabbar都是采用自定义组件实现功能。

之前有过相关分享文章，这里就不详细的介绍实现过程了。
www.cnblogs.com/xiaoyan2017/p/1497...

uni-app+vue3短视频功能

<ua-layout>
    <view class="ua__swipervideo flex1">
        <swiper
            class="ua__swipervideo-wrap flex1"
            :current="currentVideo"
            vertical
            :circular="true"
            :duration="200"
            @change="handleChange"
            @transition="handleTransition"
        >
            <swiper-item v-for="(item, index) in videoList" :key="index">
                <video
                    class="ua__swipervideo-player flex1"
                    :id="'uplayer' + index"
                    :src="item.src"
                    :danmu-list="item.danmu"
                    :enable-danmu="true"
                    :controls="false"
                    :loop="true"
                    :autoplay="index == currentVideo"
                    :show-center-play-btn="false"
                    object-fit="contain"
                    @click="handleClickVideo"
                    @play="isPlaying=true"
                    @timeupdate="handleTimeUpdate"
                    :style="{'width': `${winWidth}px`, 'height': `${winHeight}px`}"
                >
                </video>

                <!-- 浮层模块 -->
                <view class="ulive__video-float__info flexbox flex-col">
                    <view class="flexbox flex-row flex-alignb">
                        <!-- 左侧 -->
                        <view class="vdinfo__left flex1 flexbox flex-col">
                            <view class="ltrow danmu flexbox" @click="handleOpenDanmu"><text class="danmu-txt">弹</text><uv-icon class="ico" name="edit-pen" color="#fff" size="14" /></view>
                            <view class="ltrow"><text class="ait">@{{item.author}}</text></view>
                            <view class="ltrow"><text class="desc">{{item.desc}}</text></view>
                        </view>
                        <!-- 右侧操作栏 -->
                        <view class="vdinfo__right flexbox flex-col">
                            <view class="rtbtn avatar flexbox flex-col">
                                <view class="ubox"><image class="uimg" :src="item.avatar" mode="aspectFill" /></view>
                                <view class="btn flexbox" :class="{'active': item.isFollow}" @click="handleFollow(index)"><uv-icon :name="item.isFollow ? 'checkmark' : 'plus'" :color="item.isFollow ? '#ff007f' : '#fff'" size="11" /></view>
                            </view>
                            <view class="rtbtn flexbox flex-col" @click="handleLiked(index)"><uv-icon name="heart-fill" :color="item.isLike ? '#ff007f' : '#fff'" size="40" /><text class="num">{{item.likeNum+(item.isLike ? 1 : 0)}}</text></view>
                            <view class="rtbtn flexbox flex-col" @click="handleOpenComment(index)"><uv-icon name="chat-fill" color="#fff" size="40" /><text class="num">{{item.replyNum}}</text></view>
                            <view class="rtbtn flexbox flex-col"><uv-icon name="star-fill" color="#fff" size="40" /><text class="num">{{item.starNum}}</text></view>
                            <view class="rtbtn flexbox flex-col" @click="handleOpenShare(index)"><uv-icon name="share-fill" color="#fff" size="40" /><text class="num">{{item.shareNum}}</text></view>
                        </view>
                    </view>
                </view>
            </swiper-item>
        </swiper>

        <!-- 固定tabs(脱离滑动区) -->
        <view class="ulive__video-header__tabs" :style="{'margin-top': `${menuBarT}px`}">
            <uv-tabs :current="tabsCurrent" :list="tabsList" />
        </view>

        <!-- 播放暂停按钮 -->
        <view v-if="!isPlaying" class="ua__swipervideo-playbtn" :style="{'left': `${winWidth/2}px`, 'top': `${winHeight/2}px`}" @click="handleClickVideo">
            <text class="ua__swipervideo-playico welive-icon welive-icon-play nvueicon"></text>
        </view>
        <!-- 播放mini进度条 -->
        <view class="ua__swipervideo-progress" :style="{'width': `${winWidth}px`}"><view class="ua__swipervideo-progressbar" :style="{'width': `${progressBar}px`}"></view></view>
    </view>

    <template #footer>
        <ua-tabbar bgcolor="transparent" color="rgba(255,255,255,.7)" :border="false" :dock="false" transparent z-index="1000" />
    </template>
</ua-layout>

短视频模块布局分为顶部固定tabs切换+视频播放区+底部视频信息浮层。

<script setup>
    import { ref, computed, getCurrentInstance } from 'vue'
    import { onShow, onHide } from '@dcloudio/uni-app'
    import { getRandomColor } from '@/utils'

    // ...

    const { globalData } = getApp()
    const menuBarT = ref(globalData.menu?.top || globalData.statusBarH)
    const winWidth = ref(globalData.screenWidth)
    const winHeight = ref(globalData.screenHeight)

    const tabsList = ref([
        { name: '推荐', count: 5 },
        { name: '关注' },
        { name: '同城' }
    ])
    const tabsCurrent = ref(0)

    // 视频参数
    const currentVideo = ref(0)
    const isPlaying = ref(false)
    const clickNum = ref(0)
    const clickTimer = ref(null)
    const progressBar = ref(0)

    // 视频源
    const videoList = ref(videoJson)
    const danmuEditor = ref('')
    const isVisibleDanmu = ref(false)
    const commentRef = ref(null)
    const shareRef = ref(null)

    // ...


    /**
     * ====================== 视频播放模块 ======================
    */
    // 创建并返回 video 上下文 videoContext 对象
    const getVideoContext = () => {
        // return uni.createVideoContext(`uplayer${currentVideo.value}`, this)
        return uni.createVideoContext(`uplayer${currentVideo.value}`, getCurrentInstance())
    }

    // 垂直滑动视频，滑动改变时会触发 change 事件
    const handleChange = (e) => {
        const index = e.detail.current
        progressBar.value = 0
        handleReset()

        currentVideo.value = index
        // 播放
        handlePlay()
    }

    // 播放
    const handlePlay = () => {
        console.log('video play')
        let video = getVideoContext()
        if(!video) return
        video.play()
        isPlaying.value = true
    }

    // 暂停
    const handlePause = () => {
        console.log('video pause')
        let video = getVideoContext()
        if(!video) return
        video.pause()
        isPlaying.value = false
    }

    // 重置播放
    const handleReset = () => {
        console.log('video reset')
        let video = getVideoContext()
        if(!video) return
        video.pause()
        video.seek(0)
        video.stop()
        isPlaying.value = false
    }

    // 监听播放进度条
    const handleTimeUpdate = (e) => {
        let { currentTime, duration } = e.detail
        progressBar.value = parseInt((currentTime / duration).toFixed(2) * parseInt(winWidth.value))
    }

    // 点击视频(监听单双击)
    const handleClickVideo = () => {
        console.log('video click')
        clearTimeout(clickTimer.value)
        clickNum.value++
        clickTimer.value = setTimeout(() => {
            if(clickNum.value >= 2) {
                console.log('double click')
            }else {
                if(isPlaying.value) {
                    handlePause()
                }else {
                    handlePlay()
                }
            }
            clickNum.value = 0
        }, 200)
    }


    /**
     * ====================== 其它功能模块 ======================
    */
    // 打开弹幕弹框
    const handleOpenDanmu = () => {
        isVisibleDanmu.value = true
    }
    // 关闭弹幕弹框
    const handleCloseDanmu = () => {
        uni.hideKeyboard()
        isVisibleDanmu.value = false
        danmuEditor.value = ''
    }
    // 发送弹幕
    const handleSendDanmu = () => {
        let video = getVideoContext()
        if(!video) return
        video.sendDanmu({
            text: danmuEditor.value,
            color: getRandomColor()
        })
        handleCloseDanmu()
    }

    // 打开评论框
    const handleOpenComment = (index) => {
        commentRef.value.open()
    }

    // ...

</script>

uni-app+vue3直播功能

直播页面相较于短视频页面就复杂了很多，不过视频滑动切换原理差不多。只不过页面浮层布局就复杂了些。

<ua-layout>
    <view class="ua__swipervideo flex1">
        <swiper
            class="ua__swipervideo-wrap flex1"
            :current="currentLive"
            vertical
            @change="handleChange"
        >
            <swiper-item v-for="(item, index) in liveList" :key="index">
                <video
                    class="ua__swipervideo-player flex1"
                    :id="'uplayer' + index"
                    :src="item.src"
                    :controls="false"
                    :loop="true"
                    :autoplay="index == currentLive"
                    :show-center-play-btn="false"
                    object-fit="contain"
                    :style="{'width': `${winWidth}px`, 'height': `${winHeight}px`}"
                >
                </video>

                <!-- 浮层模块 -->
                <swiper class="ulive__swiperscreen flex1" :current="1">
                    <!-- 清屏 -->
                    <swiper-item>
                        第一屏
                    </swiper-item>
                    <swiper-item>
                        <!-- 顶部区域 -->
                        <view class="ulive__headlayer" :style="{'top': menuBarT+'px'}">
                            <!-- logo+关注 -->
                            <view class="ulive__hd-liveinfo flexbox flex-row flex-alignc">
                                <view class="ulive__hd-avatar ulive__mask flex-alignc">
                                    <image class="logo" :src="item.logo" mode="widthFix" />
                                    <view class="flex1 flexbox flex-col ml-10">
                                        <text class="name">{{item.name}}</text>
                                        <text class="zan">{{item.likeNum}}本场点赞</text>
                                    </view>
                                    <view class="btn flexbox flex-row flex-alignc" :class="{'active': item.isFollow}" @click="handleFollow(index)"><text class="btntext" :class="{'active': item.isFollow}">{{item.isFollow ? '已关注' : '关注'}}</text></view>
                                </view>
                                <view class="ulive__hd-onlineuser flex1">
                                    <uv-icon name="close" color="#fff" @click="handleLiveQuit" />
                                </view>
                            </view>
                            <view class="ulive__hd-livewrap flexbox flex-row">
                                <view class="ulive__hd-livewrap__left flex1 flexbox flex-col">
                                    <view class="ulive__hd-livewrap__tags flexbox flex-row">
                                        <view class="ulive__roundwrap ulive__mask">
                                            <uv-icon name="shopping-cart" color="#ffdd1a" /><text class="ulive__roundtext">服饰鞋包榜第1名</text>
                                        </view>
                                        <view class="ulive__roundwrap ulive__mask ml-10">
                                            <uv-icon name="level" color="#ffdd1a" /><text class="ulive__roundtext">小时榜</text>
                                        </view>
                                    </view>
                                    <!-- 红包+福袋倒计时 -->
                                    <view class="ulive__hd-livewrap__redpacket flexbox flex-row">
                                        <view class="ulive__redpacket-item ulive__mask" @click="handleOpenRedpacket(1)">
                                            <image class="ulive__redpacket-image" src="/static/icon-fudai.png" mode="widthFix" /><text class="ulive__redpacket-time">04:49</text>
                                        </view>
                                        <view class="ulive__redpacket-item ulive__mask" @click="handleOpenRedpacket(2)">
                                            <image class="ulive__redpacket-image" src="/static/icon-hb.png" mode="widthFix" /><text class="ulive__redpacket-time">04:49</text>
                                        </view>
                                        <view class="ulive__redpacket-item ulive__mask center">
                                            <image class="ulive__redpacket-image" src="/static/icon-rotate.png" mode="widthFix" /><text class="ulive__redpacket-time">04:49</text>
                                        </view>
                                    </view>
                                </view>
                                <view class="ulive__hd-livewrap__right flexbox flex-col">
                                    <view class="ulive__roundwrap ulive__mask mr-20">
                                        <uv-icon name="kefu-ermai" color="#fff" /><text class="ulive__roundtext ml-5">后台</text>
                                    </view>
                                </view>
                            </view>
                        </view>

                        <!-- 底部区域 -->
                        <view class="ulive__footlayer">
                            <!-- 商品提示层 -->
                            <view class="ulive__ft-livewrap-placeholder animated fadeIn">
                                <view class="ulive__ft-livewrap-hotbuy flexbox flex-row">
                                    <image class="gimg" :src="item.poster" mode="aspectFill" />
                                    <view class="ginfo flex1">
                                        <view class="flexbox flex-row"><text class="user c-ffdd1a">Andy</text><text class="c-fff">等{{item.saleNum}}人在购买</text></view>
                                        <text class="gdesc clamp1">{{item.desc}}</text>
                                    </view>
                                    <view class="btn"><text class="btntext">去购买</text></view>
                                </view>
                            </view>
                            <!-- 加入直播间/送礼物提示 -->
                            <view class="ulive__ft-livewrap-animateview flexbox flex-col">
                                <view class="ulive__ft-livewrap-animatejoin ulive__ft-livewrap-placeholder">
                                    <view v-if="joinRoomData" class="ulive__ft-livewrap-joinroom"><text class="ulive__ft-livewrap-joinroom__text">欢迎{{joinRoomData}}加入了直播间</text></view>
                                </view>

                                <!-- 送礼物 -->
                                <view class="ulive__ft-livewrap-animategift ulive__ft-livewrap-placeholder">
                                    <view v-if="!isEmpty(sendGiftData)" class="ulive__ft-livewrap-activegift flexbox flex-row flex-alignc">
                                        <image class="avatar" :src="sendGiftData.avatar" />
                                        <view class="info flex1"><text class="name">{{sendGiftData.user}}</text><text class="desc">送出</text></view>
                                        <image class="gift" :src="sendGiftData.pic" />
                                    </view>
                                </view>
                            </view>
                            <!-- 聊天浮层+商品讲解 -->
                            <view class="ulive__ft-livewrap-mixinview flexbox flex-row">
                                <!-- 聊天消息 -->
                                <view class="ulive__ft-livewrap-chats flex1">
                                    <scroll-view class="ulive__ft-livewrap-chats__scrollview flex1" scroll-y show-scrollbar="false" :scroll-into-view="scrollToView" :lower-threshold="5" @scroll="handleMsgScroll" @scrolltolower="handleMsgScrollLower">
                                        <block v-for="(msgitem, msgidx) in item.message" :key="msgidx">
                                            <view v-if="msgitem.type == 'notice'" class="notice" :id="`msg-${msgitem.id}`"><view class="item"><text class="noticetext">{{msgitem.content}}</text></view></view>
                                            <view v-else-if="msgitem.type == 'gift'" class="gift" :id="`msg-${msgitem.id}`">
                                                <view class="item">
                                                    <text class="giftuser">{{msgitem.user}}</text>
                                                    <text class="gifttext">送出了{{msgitem.content}}</text>
                                                    <image class="giftimg" :src="msgitem.img" mode="widthFix" />
                                                    <text class="giftnum">x{{msgitem.num}}</text>
                                                </view>
                                            </view>
                                            <view v-else class="msg" :id="`msg-${msgitem.id}`">
                                                <view class="item">
                                                    <text v-if="msgitem.tag" class="tag">{{msgitem.tag}}</text>
                                                    <text class="user">{{msgitem.user}}</text>
                                                    <text class="text" :style="[fixTextStyle]">{{msgitem.isbuy ? '正在购买' : msgitem.content}}</text>
                                                    <text v-if="msgitem.isbuy" class="tag tag-buy">去购买</text>
                                                </view>
                                            </view>
                                        </block>
                                    </scroll-view>
                                    <view v-if="!isEmpty(msgUnread)" class="ulive__ft-livewrap-chats__unread" @click="handleMsgIsRead"><text class="c-eb4868 fs-24">{{msgUnread.length}}条新消息</text></view>
                                </view>
                                <!-- 商品讲解 -->
                                <view v-if="isVisibleGoodsTalk" class="ulive__ft-livewrap-activegoods animated fadeInRight" id="goodsTalkID">
                                    <view class="ulive__ft-livewrap-activegoods__hotsale flexbox flex-row">
                                        <image class="fimg" src="/static/icon-hot.png" mode="widthFix" /><text class="c-fff fs-32">热卖 x{{item.saleNum}}</text>
                                    </view>
                                    <swiper class="ulive__ft-livewrap-activegoods__swiper">
                                        <swiper-item>
                                            <view class="ulive__ft-livewrap-activegoods__card">
                                                <view class="gwrap" @click="toGoodsDetail">
                                                    <image class="gimg" :src="item.poster" mode="aspectFill" />
                                                    <view class="waves"><text class="c-fff fs-24">讲解中</text></view>
                                                    <view class="close" @click.stop="isVisibleGoodsTalk=false"><uv-icon name="close-circle-fill" color="rgba(0, 0, 0, .3)" size="14" /></view>
                                                </view>
                                                <view class="ginfo flexbox flex-col">
                                                    <text class="clamp1 fs-24">{{item.desc}}</text>
                                                    <text class="clamp1 fs-24 c-eb4868">7天无理由退货</text>
                                                </view>
                                                <view class="btn flexbox flex-row"><text class="flex1 c-fff fs-28">￥79.00</text><text class="qiang">抢</text></view>
                                            </view>
                                        </swiper-item>
                                    </swiper>
                                </view>
                            </view>
                            <!-- 工具栏 -->
                            <view class="ulive__ft-livewrap-toolbar flexbox flex-row">
                                <view class="editorwrap flex1 flexbox flex-row flex-alignc">
                                    <view class="flex1" @click="handleOpenChatbox"><text class="editorwrap-text">说点什么...</text></view>
                                </view>
                                <view class="btnwrap flexbox flex-row">
                                    <view class="btn flexbox" @click="handleOpenMenus"><uv-icon name="grid" color="#3c9cff" size="22" /></view>
                                    <view class="btn flexbox" @click="handleOpenGoods(item)"><uv-icon name="shopping-cart-fill" color="#ffaa00" size="24" /></view>
                                    <view class="btn flexbox" @click="handleOpenGifts"><uv-icon name="gift" color="#ff0ad3" size="22" /></view>
                                    <view class="btn flexbox"><uv-icon name="more-dot-fill" color="#efe9ff" size="18" /></view>
                                </view>
                            </view>
                        </view>
                    </swiper-item>
                </swiper>
            </swiper-item>
        </swiper>
    </view>
</ua-layout>

Okay，以上就是uniapp+vue3开发直播商城的一些知识分享，希望对大家有所帮助。

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