How to make another video pause while another video is playing in the WeChat applet video tag-demo

demo

need 

There are many videos playing on a page at the same time. When the user clicks a video, the video starts to play. When another video is clicked, the previous video is paused, so that only one video is playing on the current page.

principle

When playing a video, first judge whether there is a video currently playing, if not, play it, if so, pause other videos, and then play the current video 

 source code

wxml

<view wx:for="{
   
   {videos}}" class="recordItem_hot" wx:key="{
   
   {index}}" data-item='{
   
   {item}}'>
  <video class="cover_img" src="{
   
   {item.url}}" objectFit="cover" show-fullscreen-btn id="video{
   
   {index}}" bindtap="video_play" />
  <view class="hot_name">
    <view class="name_view">{
   
   {item.title}}</view>
  </view>
</view>

js 

Page({
	/**
   * 页面的初始数据
   */
  data: {
    videos:[
      {
        url:'https://scenicpicture.umituo.com/upload/video/0387064bad8464868ae292c8cb793f86.mp4',
        title:'视频一'
      },
      {
        url:'https://scenicpicture.umituo.com/upload/video/ec341fa007ce6943ed997f5b079ea44b.mp4',
        title:'视频二'
      },
      {
        url:'https://scenicpicture.umituo.com/upload/video/mmexport1645779520102.mp4',
        title:'视频三'
      },
    ],
    indexCurrent: null,
  },

  video_play(e) {
    let curIdx = e.currentTarget.id;
    // 没有播放时播放视频
    // console.log(curIdx)
    if (!this.data.indexCurrent) {
      this.setData({
        indexCurrent: curIdx
      })
      let videoContext = wx.createVideoContext(curIdx,this) //这里对应的视频id
      videoContext.play()
    } else { // 有播放时先将prev暂停，再播放当前点击的current
      let videoContextPrev = wx.createVideoContext(this.data.indexCurrent,this)//this是在自定义组件下，当前组件实例的this，以操作组件内 video 组件（在自定义组件中药加上this，如果是普通页面即不需要加）
      if (this.data.indexCurrent != curIdx) {
        console.log(123)
        videoContextPrev.pause()
        this.setData({
          indexCurrent: curIdx
        })
        let videoContextCurrent = wx.createVideoContext(curIdx,this)
        videoContextCurrent.play()
      }
    }
  },

})