微信小程序swiper 视频中间大，两边小，轮播滑到中间视频自动播放组件教程

静态效果：

 进入下面小程序可以体验效果，点击底部 看剧 栏目 

 一、创建小程序组件

二、代码

1、WXML

<view class="swiper-wrapper"><swiperclass="main-sw"autoplay="{{false}}"circular="{{true}}"interval="{{5000}}" duration="{{500}}"current="{{posterList.length>2?1:0}}"previous-margin="255rpx"next-margin="255rpx"bindchange="swiperChange"><block wx:for="{{posterList}}" wx:key="index"><swiper-item ><view class="swiper-item {{currentIndex==index?'swiper-item-active':'swiper-item-noactive'}}"><videoclass="vie" id="{{'at_'+index}}"custom-cache="{{false}}"autoplay="{{currentIndex==index}}"data-index="{{index}}"bindplay="videoPlaying"play-btn-position="center"show-bottom-progress="{{false}}"loop="{{currentIndex==index}}"enable-progress-gesture="{{false}}"show-fullscreen-btn="{{false}}"show-play-btn="{{currentIndex==index}}"show-center-play-btn="{{currentIndex==index}}"object-fit="cover" src="{{item.url}}"><image wx:if="{{currentIndex!=index}}" style="width: 100%;" mode="aspectFill" src="{{item.coverUrl}}"></image></video><view wx:if="{{currentIndex==index}}" class="full-vw" data-oj="{{item}}" bind:tap="fullView">点击全屏</view></view></swiper-item></block></swiper>
</view>

2、wxss

.swiper-wrapper{flex: 1;width: 100%;height: 100%;margin: 0 auto;border-radius: 20rpx;background-image:url(https://pic1.zhimg.com/80/v2-1476ad08ba6e8e0aa062d8a6de699e72_720w.jpeg?source=d16d100b);background-size: 100% 100%;
}
.main-sw{width: 100%;height: 430rpx;
}.swiper-item{height: 450rpx;display: flex;align-items: center;
}.swiper-item .vie{width: 180rpx;height: 300rpx;margin: 0 auto;border-radius: 20rpx;transition: all 0.6s;
}.swiper-item-noactive{padding-top: 30rpx;transition: all 0.6s;
}.swiper-item-active{transition: all 0.6s;
}.swiper-item-active .vie{width: 100%;height: 360rpx;transition: all 0.6s;
}.full-vw{right: 20rpx;width: 130rpx;position: fixed;bottom: 15rpx;color: white;border-radius: 50rpx;align-items: center;justify-content: center;margin: 20rpx;display: flex;font-family: auto;font-size: small;padding: 2px;backdrop-filter: blur(10px);background: #65656594;
}

 3、JS

// components/swiper-video/swiper-video.js
Component({behaviors: ['wx://component-export'],export() {return this;},lifetimes: {ready: function() {}},/*** 组件的属性列表*/properties: {},/*** 组件的初始数据*/data: {currentIndex: 1,preIndex:-1,posterList: [{url: 'https://tx2.a.kwimgs.com/upic/2024/02/15/15/BMjAyNDAyMTUxNTQ0NTNfMjI1MzQ2MDQxMV8xMjUwMDcyMDgyODZfMV8z_b_B5e4c6a553c4e284e7941a0ded6c00abb.mp4?tag=1-1708249770-unknown-0-p3ytzdyhr9-044ff73795d79af2&clientCacheKey=3xypn8bt5vm7w5q_b.mp4&bp=10000&tt=b&ss=vp',title:'01',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/01/30/16/BMjAyNDAxMzAxNjQwMzJfMzgyMzQ3MjQ1XzEyMzUyMTMwODU4NF8xXzM=_b_Be0f3bfddfb287f120ec484218179d214.mp4?tag=1-1708249795-unknown-0-4piuyvkt6d-783157ecbf33a1a3&clientCacheKey=3xpwz2fks5az6r4_b.mp4&bp=10000&tt=b&ss=vp',title:'02',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/02/17/14/BMjAyNDAyMTcxNDI0NDZfMTI5OTg4NTg4NV8xMjUxODQ5NTczNDRfMF8z_b_B3c596afe9e6ddc96e88d71351da052ac.mp4?tag=1-1708249822-unknown-0-ab5yaqiqon-f89388c9a0fbea5f&clientCacheKey=3x8669dhkxfztyc_b.mp4&bp=10000&tt=b&ss=vp',title:'03',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/02/17/17/BMjAyNDAyMTcxNzExMDRfMjM0NzM2OTY3OV8xMjUxOTkzNTUwOTlfMF8z_b_B531ec3a51ae00fdf805e892aefbf6733.mp4?tag=1-1708249852-unknown-0-jde8ia4ef8-80944aff380e6a62&clientCacheKey=3xzj5p23mfrrsm9_b.mp4&bp=10000&tt=b&ss=vp'title:'04',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/02/18/11/BMjAyNDAyMTgxMTAyMzdfMTYzNTI5NjEzNV8xMjUyNjE0MjQ4NTJfMF8z_b_B3da4064bfef058d0c2821f64f24d863e.mp4?tag=1-1708249875-unknown-0-oudstqms9g-770ac56e97209131&clientCacheKey=3xfywqaqhr4xav4_b.mp4&bp=10000&tt=b&ss=vp',adUrl:'https://kurl01.cn/7wcG5c',title:'05',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2023/12/08/14/BMjAyMzEyMDgxNDA1NThfMjEwNjQzMjExMV8xMTkxMTE3NDE1NzVfMV8z_b_Ba62e8a6ff0405a74160c6887700f4d6c.mp4?tag=1-1708177895-unknown-0-9bhguogrkc-94f990275f193667&clientCacheKey=3xsxvbspa44ezue_b.mp4&bp=10000&tt=b&ss=vp',title:'06',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/01/17/13/BMjAyNDAxMTcxMzMyMDZfMzg1MTI1NDMwMV8xMjIzMjA4MTg1MzJfMl8z_b_B64de3e477a3c56931c2e1c869455bb8a.mp4?tag=1-1708249935-unknown-0-8hoxqf5mqv-06a7d7fd75d38e4b&clientCacheKey=3xns4fd3r5iw3mq_b.mp4&bp=10000&tt=b&ss=vp',adUrl:'https://kurl01.cn/7wcG5c',title:'07',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/01/02/19/BMjAyNDAxMDIxOTIxMDNfMzg4MTc4NzIwM18xMjEyMTY2NjYzOTNfMl8z_b_B7243f24b02219e4fafb2aa4e92cc5395.mp4?tag=1-1708249950-unknown-0-p2dy8mumai-fe39fb7133a179af&clientCacheKey=3xjxfvd5cnhip2u_b.mp4&bp=10000&tt=b&ss=vp',title:'08',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/02/16/17/BMjAyNDAyMTYxNzU3MTRfMTU2ODQ2MzM2Ml8xMjUxMTA1MDIwMDZfMV8z_b_B74927e5fb4232fc899c57f2e68fa5582.mp4?tag=1-1708249967-unknown-0-vrnqcigp6e-3d0aa458f1aaf315&clientCacheKey=3xu5uaiuju6y5xu_b.mp4&bp=10000&tt=b&ss=vp',title:'09',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},{url: 'https://tx2.a.kwimgs.com/upic/2024/01/01/11/BMjAyNDAxMDExMTAxMjhfMTk3MDc5MTUxMV8xMjExMDExOTE1ODVfMV8z_b_B6fc046ba1a3cc0b114ffb7a3feb87c68.mp4?tag=1-1708250014-unknown-0-glxnbdhuvo-79c4b0891fd217ee&clientCacheKey=3x43rid7dz3y7pk_b.mp4&bp=10000&tt=b&ss=vp',title:'10',coverUrl:'https://pic3.zhimg.com/v2-e392c3b92ab5e833e9b6911d4d512073_r.jpg?source=1940ef5c'},]},/*** 组件的方法列表*/methods: {//视频切换swiperChange(event){if(this.data.preIndex>-1){var cxt = wx.createVideoContext('at_'+this.data.preIndex, this);cxt.stop();//将视频重头开始播放cxt.seek(10000);}let {current} = event.detail;var cxt = wx.createVideoContext('at_'+current, this);cxt.play();this.setData({currentIndex: current,preIndex: current})},//当前正在播放视频videoPlaying(e){this.setData({preIndex: e.currentTarget.dataset.index})},/*** 当前视频暂停（父组件可调用）*/videoStop(){var cxt = wx.createVideoContext('at_'+this.data.currentIndex, this);cxt.stop();//将视频重头开始播放cxt.seek(10000);},/*** 当前视频播放（父组件可调用）*/videoPlay(){var cxt = wx.createVideoContext('at_'+this.data.currentIndex, this);cxt.play();},/*** 全屏观看*/fullView(e){wx.navigateTo({url: '/pages/videoview/videoview',success: function(res) {// 通过eventChannel向被打开页面传送数据res.eventChannel.emit('acceptDataFromOpenerPage', {oj:e.currentTarget.dataset.oj})}})}}
})