用webview打开网页时,里面有个div带滚动条的,但是在平板上滚动条失效

android2.3的不支持滚动条,并且scrollTop也不支持的。(设置overflow未hidden就可以支持)。
function noBarsOnTouchScreen(arg)
{
 

var elem, tx, ty;

  if('ontouchstart' in document.documentElement ) {
          if (elem = document.getElementByIdx_x(arg)) {
              elem.style.overflow = 'hidden';
              elem.ontouchstart = ts;
              elem.ontouchmove = tm;
          }
  }

  function ts( e )
  {
    var tch;

    if(  e.touches.length == 1 )
    {
      e.stopPropagation();
      tch = e.touches[ 0 ];
      tx = tch.pageX;
      ty = tch.pageY;
    }
  }

  function tm( e )
  {
    var tch;

    if(  e.touches.length == 1 )
    {
      e.preventDefault();
      e.stopPropagation();
      tch = e.touches[ 0 ];
      this.scrollTop +=  ty - tch.pageY;
      ty = tch.pageY;
    }
  }
}
调用的时候:noBarsOnTouchScreen(divId);
来源:http://www.myexception.cn/web/411975.html

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