javascript - 检测过度滚动的结束

Question

当元素的 webkit-overflow-scrolling 设置为“touch”(iOS 设备上 document.documentElement 的默认值)时，用户可以滚动内容。当用户释放 touchevent 时，元素滚动到 0 需要一些时间。

如何检测滚动结束？

Answer 1

var overscroll;

window.addEventListener('touchstart', function () {
    // User has very quick fingers.
    overscroll = false;
});

window.addEventListener('touchend', function () {
    // User released touch-drag event when element was in an overscroll state.
    if (document.body.scrollTop < 0) {
        overscroll = true;
    }
});

window.addEventListener('scroll', function () {
    if (overscroll && document.body.scrollTop == 0) {
        overscroll = false;

        console.log('end of overscroll');
    }
});