• 滚动鼠标滚动,换页切换


    效果类似这个网址所示:https://www.xyaz.cn/,网上也有这方面的插件,比如这个fullPage.js插件,https://alvarotrigo.com/fullPage/zh/#page1

    我这个的是参考这位的:http://www.webfront-js.com/articaldetail/18.html。仅仅只是自己用作记录。

    结构就是一个div作为容器,里面放要切换的页面。

    <!doctype html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <title>全屏切换</title>
        <script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
    </head>
    <style type="text/css">
        * {
            margin: 0;
            padding: 0;
        }
    
        html,
        body {
             100%;
            height: 100%;
        }
    
        .page {
            height: 100%;
             100%;
            font-size: 126px;
            display: -webkit-box;
            /*Safari*/
            display: -moz-box;
            /*Firefox*/
            display: -ms-flexbox;
            /*IE*/
            display: -webkit-flex;
            /*Chrome*/
            display: flex;
            -webkit-box-align: center;
            -moz-box-align: center;
            -ms-flex-align: center;
            -webkit-align-items: center;
            align-items: center;
            -webkit-box-pack: center;
            -moz-box-pack: center;
            -ms-flex-pack: center;
            -webkit-justify-content: center;
            justify-content: center;
        }
    </style>
    
    <body>
        <div id="mao">
            <div class="page" id="item-0" style="background-color: pink;">Prat 0</div>
            <div class="page" id="item-1" style="background-color: palegreen;">Prat 1</div>
            <div class="page" id="item-2" style="background-color: yellow;">Prat 2</div>
            <div class="page" id="item-3" style="background-color: #E91E63;">Prat 3</div>
            <div class="page" id="item-4" style="background-color: teal;">Prat 4</div>
            <div class="page" id="item-5" style="background: wheat;">Prat 5</div>
            <div class="page" id="item-6" style="background-color: yellowgreen;">Prat 6</div>
        </div>
    
        <script type="text/javascript">
    
            $(function ($) {
                $.fn.screen = function (options) {
                    var $this = this;//第一个div
                    var set = $.extend({
                        before: [],
                        after: []
                    }, options);
    
                    $this.css({
                        overflow: 'hidden',
                        position: 'fixed',
                         '100%',
                        height: '100%',
                        left: '0',
                        top: '0'
                    });
                    var ch = $this.children('div');
                    $this.empty();
                    var secondDiv = $('<div></div>').css({
                        position: "relative",
                        left: '0',
                        top: '0',
                         '100%',
                        height: '100%',
                        visibility: "visible"
                    });
                    secondDiv.appendTo($this);
                    ch.css({
                        height: '100%',
                         '100%'
                    }).appendTo(secondDiv);
                    var navbarUl = $("<ul></ul>").css({
                        position: 'absolute',
                        top: '50%',
                        "z-index": "1000",
                        right: "10%"
                    });
    
                    ch.each(function (i) {
                        var barele = $("<li></li>").attr("index", i).css({
                            border: "3px solid #2876B3",
                            "border-radius": "50%",
                             "14px",
                            height: "14px",
                            "list-style": "none",
                            cursor: "point",
                            "margin-bottom": "6px",
                            "background-color": (i == 0 ? "#fff" : "transparent")
                        });
                        barele.appendTo(navbarUl);
                    });
                    //console.log(navbarUl.height()); //打印0
                    //先将其添加到HTML文档流对象中,再设置其top位置,不然其位置计算会忽略掉其自身高度。
                    navbarUl.appendTo($this);
                    //console.log(navbarUl.height()); //打印182高度
                    navbarUl.css({
                        "margin-top": -parseInt(navbarUl.height()) / 2 + "px"
                    });
                    var wheelName = navigator.userAgent.indexOf("Firefox") > 0 ? "DOMMouseScroll" : "mousewheel";
    
                    $this.bind(wheelName, function () {
                        var event = window.event || arguments.callee.caller.arguments[0];
                        //console.log(event);
                        var contentV = 0;
                        //统一线下滚动为负数
                        if (event.wheelDelta) {
                            contentV = Math.floor(event.wheelDelta / 120) * 60;
    
                        } else if (event.detail) {
                            contentV = -Math.floor(event.detail / 3) * 60;
                        }
                        //console.log(contentV);
                        if (contentV < 0) {
                            //向下滚动为1,向上滚动为-1
                            console.log("下滚动作");
                            slide(1);
                        } else {
                            console.log("上滚动作");
                            slide(-1);
                        }
                    });
    
                    var currentPage = 0;//当前的页数
                    var lg = secondDiv.children("div").length;
                    //var sht=_i.children('div').outerHeight();//得到屏内容的高度。也就是每次要切屏时div向上向下移动的量。
                    var flag = true;
    
                    //n是1就向下切屏,n是-1就向上切屏。
                    function slide(n) {
                        if (!flag) {
    
                            return;
                        }
                        flag = false;
                        if (n > 0 && currentPage < (lg - 1)) {
                            console.log("执行下滚");
                            if (set.before[currentPage]) {
                                set.before[currentPage]();
                            }
                            currentPage++;
                            animateDown(currentPage);
    
                        } else {
                            if (n < 0 && currentPage > 0) {
                                console.log("执行上滚")
                                if (set.before[currentPage]) {
                                    set.before[currentPage]();
                                }
                                currentPage--;
                                animateDown(currentPage);
                            } else {
                                flag = true;
                            }
                        }
                    }
                    function animateDown(c) {
                        secondDiv.animate({ top: -c * 100 + '%' }, 'slow', function () {
                            navbarUl.find('li').css({ background: 'transparent' });
                            navbarUl.find('li').eq(c).css("background", "#fff");
                            if (set.after[c]) {
                                set.after[c]();
                            }
                            flag = true;
                        });
                    }
                    //初始化容器高度
                    ch.height($(window).height());
                    //窗口改变,容器高度也改变
                    $(window).resize(function () {
                        ch.height($(window).height());
                    });
    
                    navbarUl.children('li').on('click', function () {
                        var $index = $(this).index();
                        animateDown($index);
                        currentPage = $index;
                    });
                }
            }(jQuery));
    
    
        </script>
    </body>
    
    </html>
    <script>
        //引用方法
        $(function () {
            $('#mao').screen();
        });
    </script>
    

      

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  • 原文地址:https://www.cnblogs.com/lxk0301/p/8538645.html
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