問(wèn)題：測(cè)試發(fā)現(xiàn)ios微信端瀏覽器中，input失焦后蔓肯，因軟鍵盤(pán)頂起的頁(yè)面沒(méi)有回彈到原來(lái)位置遂鹊，需手動(dòng)滑動(dòng)一下頁(yè)面才可以恢復(fù)；android端沒(méi)有發(fā)現(xiàn)這個(gè)問(wèn)題
解決方法：當(dāng)失焦后蔗包，頁(yè)面自動(dòng)滾動(dòng)到原來(lái)位置

jQuery中

$('input,textarea').on('blur', function() {
    var ua = navigator.userAgent.toLowerCase();
    if(/micromessenger/.test(ua)) {
        if(/iphone|ipad|ipod/.test(ua)) {
            var currentPosition, timer;
            var speed = 1; 
            timer = setInterval(function() {
                currentPosition=document.documentElement.scrollTop || document.body.scrollTop;
                currentPosition-=speed;
                window.scrollTo(0,currentPosition);
                currentPosition+=speed; 
                window.scrollTo(0,currentPosition);
                clearInterval(timer);
            }, 1);
        }
    }
});

Vue.js中

Vue.directive('iosbugscroll', {
  inserted: function(el, binding, vnode) {
    var ua = navigator.userAgent.toLowerCase();
    if(/micromessenger/.test(ua)) {
      if(/iphone|ipad|ipod/.test(ua)) {
        // input秉扑、textarea被組件包裝的場(chǎng)景
        const childInput = el.getElementsByTagName('input');
        const childTextarea = el.getElementsByTagName('textarea');
        for (let i = 0; i < childInput.length; i++) { 
          childInput[i].onblur = function temporaryRepair() {
            setTimeout(function() {
              checkWxScroll();
            }, 200);
          };
        }
       
        for (let i = 0; i < childTextarea.length; i++) {
          childSelect[i].onblur = function temporaryRepair() {
            setTimeout(function() {
              checkWxScroll();
            }, 200);
          };
        }
        // input、textarea中的場(chǎng)景
        el.onblur = function temporaryRepair() {
          setTimeout(function() {
            checkWxScroll();
          }, 200);
        };
      }
    }
  }
});

function checkWxScroll() {
  var currentPosition, timer;
  var speed = 1; 
  timer = setInterval(function() {
    currentPosition=document.documentElement.scrollTop || document.body.scrollTop;
    currentPosition-=speed;
    window.scrollTo(0,currentPosition);
    currentPosition+=speed; 
    window.scrollTo(0,currentPosition);
    clearInterval(timer);
  }, 1);
}

使用時(shí)

<input  type="text" v-iosbugscroll />