微信6.7.4 ios12软键盘顶起页面后隐藏不回弹解决方案

temporaryRepair () {
   let currentPosition, timer
   let speed = 1 // 页面滚动距离
   timer = setInterval(function () {
     currentPosition = document.documentElement.scrollTop || document.body.scrollTop
     currentPosition -= speed
     window.scrollTo(0, currentPosition) // 页面向上滚动
     currentPosition += speed // speed变量
     window.scrollTo(0, currentPosition) // 页面向下滚动
     clearInterval(timer)
   }, 1)
}