微信小程序 仿抖音视频–整屏上下切换功能小程序qq31093755的博客-

效果演示：

WXML：

<view class="video_box"> <view bindtouchend="touchEnd" id="myVideo{{index}}" animation="{{animation}}" bindtouchstart="touchStart" bindtouchmove="touchMove" class="video_list" wx:for="{{video_list}}" data-index="{{index}}" wx:key="index" > <text style="color:red;font-size:30px;display:block;">{{index}}</text> <video src="{{item.video_src}}" vslide-gesture-in-fullscreen="{{false}}" direction = '{{0}}' enable-progress-gesture="{{false}}" show-fullscreen-btn="{{false}}" object-fit="cover"></video> </view> </view> 

WXSS：

.video_box{width: 100%;height: auto;position: fixed;top:0;bottom: 0;background-color: #000;} .video_list{width: 100%;height: 100vh;position: relative;} .video_list video{position: absolute;top:50%;margin-top:-30vw; width: 100%;height:56vw;padding: 0;} 

JS：

// pages/software_show/temp/temp.js Page({ /**    * 页面的初始数据    */   data: {     video_list:[ {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218093206z8V1JuPlpe.mp4'}, {video_src:'https://stream7.iqilu.com/10339/article/202002/17/c292033ef110de9f42d7d539fe0423cf.mp4'}, {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218025702PSiVKDB5ap.mp4'}, {video_src:'https://stream7.iqilu.com/10339/article/202002/18/2fca1c77730e54c7b500573c2437003f.mp4'}, {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218093206z8V1JuPlpe.mp4'}, {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218114723HDu3hhxqIT.mp4'}, {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218025702PSiVKDB5ap.mp4'}, {video_src:'https://stream7.iqilu.com/10339/article/202002/17/c292033ef110de9f42d7d539fe0423cf.mp4'}, {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218093206z8V1JuPlpe.mp4'}, {video_src:'https://stream7.iqilu.com/10339/upload_transcode/202002/18/20200218114723HDu3hhxqIT.mp4'}, ],      pageY:'', // 触摸起始高度坐标     animation:'', // 视频划动动画     up_stroke:false,// ture:上划；false：下划     difference:'', // 拖动的距离     windowHeight:'',// 屏幕高度 }, /**    * 生命周期函数--监听页面加载    */   onLoad: function (options) { // 赋值：屏幕高度、 this.setData({       windowHeight:wx.getSystemInfoSync().windowHeight     }) }, // 划动起始坐标方法 touchStart(e){ // 开始坐标 this.setData({       pageY:e.touches[0].pageY, }) }, // 划动过程坐标方法 touchMove(e){ let n = e.currentTarget.dataset.index; // 触摸的第几个序号 let difference = e.touches[0].pageY - this.data.pageY; // 移动后和起始值的差值 if(this.is_continue(n,difference)){ // 判断是否到底 return; } // 划动动画 ------------------------------------- var animation = wx.createAnimation({ // 移动动效       duration: 0, });     animation.top(difference - (n*this.data.windowHeight)).step() this.setData({       animation:  animation.export(), // 动画       up_stroke:difference > 0 ? false : true, // 是否上划,       difference:difference, // 拖动的距离 }) }, // 划动结束坐标方法 touchEnd(e){ let n = e.currentTarget.dataset.index; let difference = this.data.difference; // 拖动的距离 if(this.is_continue(n,difference)){ return; } const windowHeight = this.data.windowHeight; // 屏幕高度 let that = this; // 根据id获取点击元素距顶部高度 var query = wx.createSelectorQuery(); let id = '#' + e.currentTarget.id;     query.select(id).boundingClientRect(function (rect) { // 获取高度 if(Math.abs(difference) <= windowHeight /7){ // 小于1/7回原位置 --------------------------- var animation = wx.createAnimation({ // 移动动效           duration: 100, });         animation.top(-(n * windowHeight)).step()         that.setData({           animation:  animation.export(),           up_stroke:false, // 重置划动状态           difference:0, // 重置划动距离 }) }else{ // 大于1/4，移至拖动的下一个视频 -------------------------------- var animation = wx.createAnimation({ // 移动动效           duration: 200, });         that.data.up_stroke ? n++ : n--; // 上划：n+1  下划：n-1         animation.top(-(n * windowHeight)).step()         that.setData({           animation:  animation.export(),           up_stroke:false, // 重置划动状态           difference:0, // 重置划动距离 }) } }).exec(); }, // 判断是否到底 is_continue(n,difference){ if(difference < 0){ // 上划 if(n == this.data.video_list.length - 1){ // 最后一个视频，提示到底 if(difference < -20){           wx.showToast({             title: '已经到底了~~',             icon:'none',             duration:1000 }) } return true; } }else{ if(n == 0){ if(difference > 20){           wx.showToast({             title: '上面没有了~~',             icon:'none',             duration:1000 }) } return true; } } }, })