微信浏览器禁止页面下拉查看网址(不影响页面内部scroll)

此类事件是手机touchmove默认事件行为,可以通过js代码隐藏事件:

(‘body’).on(‘touchmove’, function (event) {event.preventDefault();});
or
document.addEventListener('touchmove', function(e){e.preventDefault()}, false);

但这样往往会把页面原生的scroll效果也一同去掉了(如果页面没有内嵌scroll,可以直接用此解决方案),下面的代码可以不是十分完美的解决这个问题:

var overscroll = function(el) {
  el.addEventListener('touchstart', function() {
    var top = el.scrollTop
      , totalScroll = el.scrollHeight
      , currentScroll = top + el.offsetHeight;
    //If we're at the top or the bottom of the containers
    //scroll, push up or down one pixel.
    //
    //this prevents the scroll from "passing through" to
    //the body.
    if(top === 0) {
      el.scrollTop = 1;
    } else if(currentScroll === totalScroll) {
      el.scrollTop = top - 1;
    }
  });
  el.addEventListener('touchmove', function(evt) {
    //if the content is actually scrollable, i.e. the content is long enough
    //that scrolling can occur
    if(el.offsetHeight < el.scrollHeight)
      evt._isScroller = true;
  });
}
overscroll(document.querySelector('.scroll'));
document.body.addEventListener('touchmove', function(evt) {
  //In this case, the default behavior is scrolling the body, which
  //would result in an overflow.  Since we don't want that, we preventDefault.
  if(!evt._isScroller) {
    evt.preventDefault();
  }
});

要给需要下拉的box添加一个class="scroll"就可以了

此方法对安卓的下拉不起效 但是不影响使用 主要为了解决苹果端页面上下拉之后导致页面内部scroll划不动的现象

转载自:http://www.jianshu.com/p/2eddee561971

posted @ 2017-05-11 14:12  rommel0618  阅读(577)  评论(0编辑  收藏  举报