var homeFootBar = document.querySelector("底部foot")
var shortcutVal = document.querySelector("input")
shortcutVal.addEventListener("focus", function (e) {
    if(navigator.userAgent.match(/(iPhone|iPod|Android|ios)/i)){
        focusInput()
    }
})

/*屏幕的高度*/
let docHeight = window.innerHeight //
function focusInput() {
    console.log("安卓手机2")
   window.addEventListener(‘resize‘, function() {
        console.log("安卓手机3", winHeight  +"==="+window.innerHeight)
      if (docHeight> window.innerHeight) {

         /*安卓手机当键盘弹起时设置页面的高度为屏幕的高度*/

         homeFootBar.style.display = ‘none‘
            console.log("安卓手机底部消失")
            document.getElementsByTagName(‘body‘)[0].setAttribute(‘height‘, winHeight+‘px‘)

      }else {
         /*当键盘收起时*/
         homeFootBar.style.display = ‘block‘

         document.getElementsByTagName(‘body‘)[0].setAttribute(‘height‘, ‘100%‘)

      }

   })
}