微信浏览器禁止页面下拉查看网址实例详解
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：
rush:js;">
$(‘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，下面的代码可以完美解决这个问题：
rush:js;">
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();
}
});
详情见：https://github.com/luster-io/prevent-overscroll/blob/master/index.html
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