为什么在swiper中绑定touchVideoStart事件获取videoContext暂停无效？ - WXOPEN Club

<swiper indicator-dots="{{indicatorDots}}" interval="{{interval}}" duration="{{duration}}" vertical="true" style="height:{{windowHeight}}px;width:{{windowWidth}}px" bindchange="changeVideo" bindtap="">

<block wx:for="{{videoList}}" wx:key="videoList">

<swiper-item>

<video id="myVideo{{index}}" class="vid" src="{{item}}" controls="false" bindtouchstart="touchVideoStart" bindtouchend="touchVideoEnd" autoplay="{{index == current}}"></video>

</swiper-item>

</block>

</swiper>

/**

* 开始滑动

*/

touchVideoStart: function(e) {

console.log('touchVideoStart', e);

let video = e.currentTarget.id;

console.log('video', video);

debugger

this.videoContext = wx.createVideoContext(video);//videoContext报错 undefind