用page-container做底部弹出，加上textarea做输入，结果弹出的软键盘会覆盖掉部分弹出层，曲线救国，当textarea获取/失去焦点是得到键盘高度，重设弹出层距底部距离，但是谁曾想获取的键盘高度明显高于实际值？自此无解了

<page-container 

  show="{{show}}"

  round="{{round}}"

  overlay="{{overlay}}"

  duration="{{duration}}"

  position="{{position}}"

  close-on-slide-down="{{false}}"

  custom-style="margin-bottom:{{keyboardheight}}px"

  overlay-style="{{overlayStyle}}"

  bindenter="onEnter"

>

  <view class="detail-page">

    <textarea class="pop-textarea" focus="{{focus}}" auto-focus="{{true}}" adjust-position="{{true}}" 

    show-confirm-bar="{{false}}" bindkeyboardheightchange="keyboardchange" placeholder="评论一下"/>

  </view>

  <view class="detail-button">

    <view class="plbtn"> 按钮 </view>

  </view>

</page-container>

比实际值高出一倍，有没有哪位大佬有解决办法

wx.onKeyboardHeightChange((result) => {

      this.setData({keyboardheight:result.height/2})

    })