• 朋友圈常见单页面触屏滑动上下翻屏功能jQuery实现


    翻页插件;实现原理,用margin-top来控制页面容器位置来实现上下翻页。margin这属性很好用,可以用来制作侧栏动画滑出菜单(左菜单,右内容,控制两者的margin实现);或者head下滑菜单
    (上菜单,下内容,控制两者的margin实现)。

    JS代码(jquery.showup.js):

    复制代码
    /**
     * @Creator: Nelson Kuang/Fast Mover
     * @showup    翻页插件;实现原理,用margin-top来控制页面容器位置来实现上下翻页
     * @License:The MIT License (MIT)
     * @调用方式    
       $("#container").showup({
                startPage: 0,//开始页面
                duration:1000//动画持续时间    
       })
     * @Creator: Nelson Kuang/Fast Mover
     * @wipe 触屏滑动绑定触发事件
     * @License:The MIT License (MIT)
     * @调用方式
       $("#node").wipe({
                upEvent: function(){},//划上事件
                downEvent: function(){},//划下事件
                rightEvent:function(){},//划右事件
                leftEvent:function(){},//划左事件
                delay: 500 //事件延时多久执行
    });
     */
    $.fn.extend({
    wipe: function (options) {
        var defaults = {//wipe的默认参数配置
            leftEvent: '',
            rightEvent: '',
            upEvent: '',
            downEvent: '',
            delay: 500
        };
        var options = $.extend({}, defaults, options);//传入参数与默认参数合并
        var line = {//定义滑动线的起点与终点
            startX: 0, startY: 0,
            endX: 0, endY: 0
        },
        results = {//定义滑动,左,右,上,下,或者任意
            up: false,
            down: false,
            left: false,
            right: false,
            any: function () { return results.up || results.down || results.left || results.right; }
        },
        useMouseEvents = false,//鼠标滑动模式
        timer,//绑定的事件延时执行的计时器
        startTime = false,//滑动开始时间
        endTime = false,//滑动结束时间
        _this = $(this);
    
        function onTouchStart(e) {
            e.preventDefault();//可选项,阻止事件冒泡
            startTime = new Date().getTime();
            //起点赋值
            line.startX = useMouseEvents ? e.pageX : e.originalEvent.touches[0].pageX;//起点赋值
            line.startY = useMouseEvents ? e.pageY : e.originalEvent.touches[0].pageY;
            _this.on("mousemove", onTouchMove);//绑定鼠标按下并滑动事件并监听滑动位置
            _this.one("mouseup", onTouchEnd);//绑定一次鼠标放开的事件,也即结束滑动事件
            _this.on("touchmove", onTouchMove);//绑定移动设备的触屏滑动事件并监听滑动位置
        }
        function onTouchMove(e) {//绑定鼠标或者移动设备的滑动事件并监听滑动位置
            line.endX = useMouseEvents ? e.pageX : e.originalEvent.touches[0].pageX;
            line.endY = useMouseEvents ? e.pageY : e.originalEvent.touches[0].pageY;
        }
        function onTouchEnd(e) {//滑动结束事件
            e.preventDefault();//可选项,阻止事件冒泡
            _this.off("mousemove", onTouchMove);//解除鼠标滑动事件绑定
            _this.off("touchmove", onTouchMove);//解除移动设备的触屏滑动事件绑定
            endTime = new Date().getTime();
            //特殊情况当点击处理并触发点击事件,退出;1,时间太短小于100ms;2滑动距离小于15;3,点击
            if (endTime - startTime < 100 || (Math.abs(line.endX - line.startX) < 15 && Math.abs(line.endY - line.startY) < 15) || (line.endX == 0 && line.endY == 0)) {
                resetTouch();//重设参数
                _this.trigger("click");
                return;
            }
            if (line.endX > line.startX) {//向右滑动
                results.left = false;
                results.right = true;
            }
            else if (line.endX > line.startX) {//向左滑动
                results.left = true;
                results.right = false;
            }
            if (line.endY < line.startY) {//向上滑动
                results.down = false;
                results.up = true;
            }
            else if (line.endY > line.startY) {//向下滑动
                results.down = true;
                results.up = false;
            }
            clearTimeout(timer);
            timer = setTimeout(function () {//根据滑动方向及相应的传入的函数执行相应的事件
                if (results.left && typeof (options.leftEvent) == 'function')
                    options.leftEvent();
                if (results.right && typeof (options.rightEvent) == 'function')
                    options.rightEvent();
                if (results.up && typeof (options.upEvent) == 'function')
                    options.upEvent();
                if (results.down && typeof (options.downEvent) == 'function')
                    options.downEvent();
                resetTouch();
            }, options.delay);
    
        }
        function resetTouch() {//重设参数
            line.startX = line.startY = line.endX = line.endY = 0;
            results.left = results.down = results.up = results.right = false;
    
        }
        //函数入口处
        if ("ontouchstart" in document.documentElement) {//移动设备入口
            _this.on("touchstart", onTouchStart);
            _this.on("touchend", onTouchEnd);
        }
        else {//电脑鼠标操作
            useMouseEvents = true;
            _this.on("mousedown", onTouchStart);
            _this.on("mouseout", onTouchEnd);
        }
    },
    showup: function (options) {
        var defaults = {//showup的默认参数配置
            startPage: 0,//开始打开的页码数
            duration: 1000//动画持续时间
        };
        var options = $.extend({}, defaults, options);//传入参数与默认参数合并
    
        this.each(function () {
            var _this = $(this);
            var pageWidth = _this.width(),//页面宽度
                pageHeight = _this.height(),//页面高度
                pageNumber = _this.children().children().length;//页面数
            if (pageNumber < 2) { return; }//如果是0或者1页,直接退出
            if (options.startPage > pageNumber - 1) { options.startPage = 0; }//如果传入参数超过页面总数则从0开始
            var totalHeight = pageHeight * pageNumber;//所有页面加起来总高度
            var endPage = pageNumber - 1,//结束页面
                firstPage = 0,//第一页页码为0
                lastPage = pageNumber - 1,//最后一页页码
                currentPage = options.startPage;//把开始页设为当前页
            var _wrapper = _this.children();//获取容器
            if (currentPage > 0)//初始化时打开当前页
                gotoPage(currentPage);
            _this.children().children().each(function (n) {
                var _page = $(this);
                if (n == options.startPage) {
                    //页码为开始页时,只需绑定向上翻页事件(控制margin-top使整个wrapper向上移动)
                    _page.wipe({
                        upEvent: pageUp
                    });
                }
                else if (n == lastPage) {
                    //页码为最后一页时,只需绑定向下翻页事件(控制margin-top使整个wrapper向下移动)
                    _page.wipe({
                        downEvent: pageDown
                    });
                }
                else {
                    //其他情况,绑定向上和向下翻页事件
                    _page.wipe({
                        upEvent: pageUp,
                        downEvent: pageDown
                    });
                }
    
            });
            function gotoPage(n) {//打开第n页
                var margin_top = -(n * pageHeight);
                _wrapper.css("marginTop", margin_top + "px");
                currentPage = n;
            }
            function pageDown() {//向下翻页
                var margin_top = -(currentPage * pageHeight);
                _wrapper.stop(true, true).animate({ marginTop: (margin_top + pageHeight) + "px" }, {
                    duration: options.duration
                });
                currentPage--;
            }
            function pageUp() {//向上翻页
                var margin_top = -(currentPage * pageHeight);
                _wrapper.stop(true, true).animate({ marginTop: (margin_top - pageHeight) + "px" }, {
                    duration: options.duration
                });
                currentPage++;
            }
    
        });
    }
    });
    复制代码

    Html代码(demo.html)

    复制代码
    <!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" />
        <title></title>
        <style>
            body, html {
                background-color: black;
                 100%;
                height: 100%;
                padding: 0px;
                margin: 0px;
                border: none;
            }
    
            #container {
                 100%;
                height: 100%;
                overflow: hidden;
            }
    
            #wrapper {
                 100%;
                height: 100%;
                overflow: visible;
            }
    
            .screen {
                 100%;
                height: 100%;
            }
    
            .first-screen {
                background-color: purple;
            }
    
            .second-screen {
                background-color: silver;
            }
    
            .third-screen {
                background-color: gray;
            }
    
            .fourth-screen {
                background-color: green;
            }
    
            .fifth-screen {
                background-color: yellow;
            }
    
            .sixth-screen {
                background-color: orange;
            }
    
            .seventh-screen {
                background-color: brown;
            }
    
            #btn-wrapper {
                position: fixed;
                left: 0px;
                bottom: 30px;
                 100%;
            }
    
            .btn-up {
                 20px;
                height: 80px;
                margin: 0px auto;
                background-color: white;
            }
        </style>
    </head>
    <body>
        <div id="container">
            <div id="wrapper">
                <div class="screen first-screen">
                </div>
                <!--Second session--->
                <div class="screen second-screen">
                </div>
                <!--Third session--->
                <div class="screen third-screen">
                </div>
                <!--Fourth session--->
                <div class="screen fourth-screen">
                </div>
                <!--Fifth session--->
                <div class="screen fifth-screen">
                </div>
                <!--Sixth session--->
                <div class="screen sixth-screen">
                </div>
                <!--Seventh session--->
                <div class="screen seventh-screen">
                </div>
            </div>
        </div>
        <div id="btn-wrapper">
            <div class="btn-up"></div>
        </div>
        <script src="jquery.js"></script>
        <script src="jquery.showup.js"></script>
        <script>
            $(document).ready(function () {
                $("#container").showup({
                    startPage: 2,
                    duration: 500
                });
            });
        </script>
    </body>
    </html>
    复制代码
     
     
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  • 原文地址:https://www.cnblogs.com/pegasus827/p/11088114.html
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