You can use this as well $(document).ready(function(){ var currentscroll_position = $(window).scrollTop(); $(window).on('scroll', function(){ Get_page_scroll_direction(); }); function Get_page_scroll_direction(){ var running_scroll_position = $(window).scrollTop(); if(running_scroll_position > currentscroll_position) { $('.direction_value').text('Scrolling Down Scripts'); } else { $('.direction_value').text('Scrolling Up Scripts'); } currentscroll_position = running_scroll_position; } }); .direction_value{ position: fixed; height: 30px; background-color: #333; color: #fff; text-align: center; z-index: 99; left: 0; top: 0; width: 100%; } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <div class="direction_value"> </div> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p>

这是在用户结束滚动时检测方向的最佳解决方案。

var currentScrollTop = 0 ;

$(window).bind('scroll', function () {     

    scrollTop = $(this).scrollTop();

    clearTimeout($.data(this, 'scrollTimer'));
    $.data(this, 'scrollTimer', setTimeout(function() {

        if(scrollTop > currentScrollTop){
            // downscroll code
            $('.mfb-component--bl').addClass('mfbHide');
        }else{
            // upscroll code
            $('.mfb-component--bl').removeClass('mfbHide');
        }
        currentScrollTop = scrollTop;

    }, 250));

});

你可以这样做，而不必跟踪之前的滚动顶部，因为所有其他的例子都要求:

$(window).bind('mousewheel', function(event) {
    if (event.originalEvent.wheelDelta >= 0) {
        console.log('Scroll up');
    }
    else {
        console.log('Scroll down');
    }
});

我不是这方面的专家，所以请随意进一步研究，但当您使用$(element)时。滚动，被监听的事件是一个'滚动'事件。

但是如果您使用bind专门监听鼠标滚轮事件，则回调的事件参数的originalEvent属性包含不同的信息。其中一部分信息是wheelDelta。如果是正数，你就向上移动鼠标滚轮。如果是负的，鼠标滚轮就向下移动了。

我的猜测是鼠标滚轮事件将在鼠标滚轮转动时触发，即使页面没有滚动;在这种情况下，'scroll'事件可能不会被触发。如果需要，可以在回调的底部调用event. preventdefault()来阻止页面滚动，这样就可以将鼠标滚轮事件用于页面滚动之外的其他事情，比如某种类型的缩放功能。

使用这个来找到滚动方向。这只是为了找到垂直滚动的方向。支持所有跨浏览器。

    var scrollableElement = document.getElementById('scrollableElement');

    scrollableElement.addEventListener('wheel', findScrollDirectionOtherBrowsers);

    function findScrollDirectionOtherBrowsers(event){
        var delta;

        if (event.wheelDelta){
            delta = event.wheelDelta;
        }else{
            delta = -1 * event.deltaY;
        }

        if (delta < 0){
            console.log("DOWN");
        }else if (delta > 0){
            console.log("UP");
        }

    }

例子

You can use this as well $(document).ready(function(){ var currentscroll_position = $(window).scrollTop(); $(window).on('scroll', function(){ Get_page_scroll_direction(); }); function Get_page_scroll_direction(){ var running_scroll_position = $(window).scrollTop(); if(running_scroll_position > currentscroll_position) { $('.direction_value').text('Scrolling Down Scripts'); } else { $('.direction_value').text('Scrolling Up Scripts'); } currentscroll_position = running_scroll_position; } }); .direction_value{ position: fixed; height: 30px; background-color: #333; color: #fff; text-align: center; z-index: 99; left: 0; top: 0; width: 100%; } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <div class="direction_value"> </div> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi ducimus expedita facilis architecto fugiat veniam natus suscipit amet beatae atque, enim recusandae quos, magnam, perferendis accusamus cumque nemo modi unde!</p>

我有弹性滚动的问题(滚动弹跳，橡皮筋)。 如果接近页面顶部，忽略下滚动事件对我来说是有效的。

var position = $(window).scrollTop();
$(window).scroll(function () {
    var scroll = $(window).scrollTop();
    var downScroll = scroll > position;
    var closeToTop = -120 < scroll && scroll < 120;
    if (downScroll && !closeToTop) {
        // scrolled down and not to close to top (to avoid Ipad elastic scroll-problems)
        $('.top-container').slideUp('fast');
        $('.main-header').addClass('padding-top');
    } else {
        // scrolled up
        $('.top-container').slideDown('fast');
        $('.main-header').removeClass('padding-top');
    }
    position = scroll;
});