js实现楼层滚动效果

js实现楼层滚动效果

本文实例为大家分享了jquery实现滑动楼梯效果,实现楼层的滚动以及点击楼层按钮跳转到对应的楼层,代码如下

html代码:

<div style="height: 500px; background-color: black; color: #fff;">无意义的文本</div>
 
    <div class="layerbox">
        <div class="layer num1">第一层</div>
        <div class="layer num2">第二层</div>
        <div class="layer num3">第三层</div>
        <div class="layer num4">第四层</div>
    </div>
    <div class="nav">
        <ul>
            <li>1F</li>
            <li>2F</li>
            <li>3F</li>
            <li>4F</li>
   </ul>
</div>

css代码:

* {
         margin: 0;
         padding: 0;
        }
 
        .layer {
            height: 300px;
            font-size: 80px;
            color: white;
            text-align: center;
        }
 
        .num1 {
            background-color: red;
        }
 
        .num2 {
            background-color: blue;
        }
 
        .num3 {
            background-color: yellow;
        }
 
        .num4 {
            background-color: green;
        }
 
        .nav {
            position: fixed;
            right: 50px;
            bottom: 400px;
            background-color: pink;
        }
 
        ul {
            list-style: none;
        }
 
        ul li {
            padding: 10px;
            width: 50px;
            height: 50px;
            line-height: 50px;
            text-align: center;
            border: 1px solid #000;
        }
 
        ul li.active {
            background-color: crimson;
        }

js代码:

<script>
        var layers = document.querySelectorAll(".layer")
        var lis = document.querySelectorAll("li")
        for (let i = 0; i < lis.length; i++) {
            const li = lis[i]
            li.onclick = function (e) {
                //页面的偏移量,原来的页面滚动的距离
                var scrollTop = document.documentElement.scrollTop
                var offsetTop = layers[i].offsetTop
                if (scrollTop > offsetTop) {
                    // 滚动条向上移动
                    var timer = setInterval(function () {
                        if (scrollTop > offsetTop) {
                            scrollTop -= 40
                            if (scrollTop - offsetTop < 40) {
                                // 如果最后一洞的距离小于40时,直接设置偏移量为0
                                window.scrollTo(0, offsetTop)
                            } else {
                                window.scrollTo(0, scrollTop)
                            }
                        } else {
                            clearInterval(timer)
                        }
                    }, 50)
                } else {
                    // 滚动条向下移动
                    // scrollTop <= offsetTop
                    var timer = setInterval(function () {
                        if (scrollTop < offsetTop) {
                            scrollTop += 40
                            if (offsetTop - scrollTop < 40) {
                                window.scrollTo(0, offsetTop)
                            } else {
                                window.scrollTo(0, scrollTop)
                            }
                        } else {
                            clearInterval(timer)
                        }
                    }, 50);
 
 
                }
 
            }
        }
  
        window.onscroll = function (e) {
            var scrollTop = document.documentElement.scrollTop || document.body.scrollTop
            layers.forEach(function (v, i) {
                if (v.clientHeight + v.offsetTop > scrollTop && scrollTop > v.offsetTop) {
                    // 滚动的楼层到达顶部范围,离开消失
                    lis[i].classList.add("active")
                } else {
                    lis[i].classList.remove("active")
                }
            })
 
        }
 
</script>

小编再为大家分享一段代码:jquery楼层滚动特效

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>jq 楼层滚动效果</title>
        <style>
            * {
                margin: 0;
                padding: 0;
            }

            i {
                font-style: normal;
            }

            ul,
            li, 
            dl,
            ol{
                list-style: none;
            }

            #LoutiNav {
                border: 1px solid gray;
                width: 30px;
                position: fixed;
                top: 150px;
                left: 50px;
                display: none;
            }

            #LoutiNav li {
                width: 30px;
                height: 30px;
                border-bottom: 1px solid gray;
                line-height: 30px;
                text-align: center;
                cursor: pointer;
            }

            #LoutiNav span {
                display: none;
            }

            #LoutiNav .active {
                background: white;
                color: darkred;
            }

            #LoutiNav li:hover span {
                display: block;
                font-size: 12px;
                background: darkred;
                color: white;
            }

            #LoutiNav li:hover i {
                display: none;
            }

            #goTop {
                width: 40px;
                height: 40px;
                line-height: 40px;
                text-align: center;
                background: gray;
                position: fixed;
                bottom: 30px;
                right: 30px;
                cursor: pointer;
                border-radius: 5px;
                display: none;
            }

            #goTop:hover {
                background: darkred;
                color: white;
            }

            #goTop:hover span {
                display: block;
            }

            #erweima {
                width: 130px;
                height: 130px;
                background: palegreen;
                display: none;
                position: absolute;
                right: 46px;
                bottom: 5px;
                line-height: 130px;
                text-align: center;
                font-size: 20px;
                border-radius: 10px;
            }

            #header {
                height: 200px;
                background: palegoldenrod;
                text-align: center;
                line-height: 200px;
                font-size: 72px;
                margin: 0 auto;
            }

            .louceng {
                height: 810px;
                text-align: center;
                line-height: 610px;
                font-size: 120px;
                margin: 0 auto;
            }
        </style>
        <script src="js/jquery-1.7.2.min.js"></script>
    </head>

    <body>
        <ul id="LoutiNav">
            <li class="active"><i>1F</i><span>服饰</span></li>
            <li><i>2F</i><span>美妆</span></li>
            <li><i>3F</i><span>手机</span></li>
            <li style="border-bottom: none;"><i>4F</i><span>家电</span></li>
        </ul>
        <div id="goTop">
            <span id="erweima">我是二维码</span> Top
        </div>
        <div id="header">头部</div>
        <div id="main">
            <div class="louceng" style="background: papayawhip;">服饰</div>
            <div class="louceng" style="background: peachpuff;">美妆</div>
            <div class="louceng" style="background: peru;">手机</div>
            <div class="louceng" style="background: pink;">家电</div>
        </div>
        <script>
            var oNav = $("#LoutiNav"); //导航壳
            var aNav = oNav.find("li"); //导航
            var aDiv = $("#main .louceng"); //楼层
            var oTop = $("#goTop"); //回到顶部 
            $(window).scroll(function() {
                    //可视窗口高度
                    var winH = $(window).height();
                    //鼠标滚动的距离
                    var iTop = $(window).scrollTop();

                    if(iTop >= $("#header").height()) {
                        oNav.fadeIn();
                        oTop.fadeIn();
                        //鼠标滑动样式改变
                        aDiv.each(function() {
                            if(winH + iTop - $(this).offset().top > winH / 2) {
                                aNav.removeClass("active");
                                aNav.eq($(this).index()).addClass("active");
                            }
                        })
                    } else {
                        oNav.fadeOut();
                        oTop.fadeOut();
                    }
                })
            //点击回到当前楼层
            aNav.click(function() {
                var t = aDiv.eq($(this).index()).offset().top;
                $("body,html").animate({
                    "scrollTop": t
                }, 500);
                $(this).addClass("active").siblings().removeClass("active");
            });
            //回到顶部
            oTop.click(function() {
                $("body,html").animate({
                    "scrollTop": 0
                }, 500)
            })
        </script>
    </body>
</html>

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持云海天教程。