vue 解决mintui弹窗弹起来,底部页面滚动bug问题

<mt-popup
     v-model="popupVisible"
     position="bottom">
     ...
  </mt-popup>
  // 防止滚动穿透 只需加入@touchmove.native.stop.prevent 阻止默认根元素的默认事件就可以了native是关键，这个表示根元素的意思，也就是body或者html
  <mt-popup
   v-model="popupVisible"
   position="bottom"
   @touchmove.native.stop.prevent>
   ...
  </mt-popup>

 //html 如下
   <mt-popup
     v-model="popupVisible"
     position="bottom">
     ...
   </mt-popup>
  // js 如下
  const handler = function(e) {
    e.preventDefault();
  }
  
  // vue实例内
  watch: {
    popupVisible: function (val) {
     if(val) {
       document.getElementsByTagName('body')[0].addEventListener('touchmove', this.handler, { passive: false });
     } else {
       document.getElementsByTagName('body')[0].removeEventListener('touchmove', this.handler, { passive: false });
     }
    }
  }

 <mt-datetime-picker
    ref="picker"
    type="time"
    v-model="pickerValue"
    @touchmove.native.stop.prevent>
 </mt-datetime-picker>