移动端H5仿app下拉动画（没有下拉刷新单纯的动画）已经封装好js

function drag(obj){
  obj.addEventListener("touchstart", function(event){
    var e=event;
    console.log(e)
  var abc=e.targetTouches[0].pageX;
  var xyz=e.targetTouches[0].pageY;
  console.log(abc+":"+xyz)
  //var aaa=obj.offsetTop+obj.offsetHeight;
    obj.addEventListener("touchmove", function(event){
      var e=event;
      var l=e.targetTouches[0].clientX-abc;//一直变化的X;
      var t=e.targetTouches[0].clientY-xyz;//一直变化的Y;
      //console.log(t)
      if(l<0){
l=0;else ifl>=document-//console.log(l)
        l=document-
      ift<0t=0else ift >= document- t = document- 
      if( t >= window.innerHeight/10){
       t=window.innerHeight/10
      };
      console.log(l)
      obj.style.cssText='left:'+(l)+'px;top:'+(t)+'px;cursor:move;';
    })
    obj.addEventListener("touchend", function(event){
      obj.style.cssText='left:0px;top:0px;cursor:move;';
    })
    return false;
  })
 }

直接在html里面drag(这里面就是需要拖拽的dom元素)

css用的是定位