웹 앱은 페이지 전체 드롭다운을 금지하고 페이지 내부 scroll에 영향을 주지 않습니다
5534 단어 이동단 기술
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()
}
})