js html 轮播图 支持移动端左右滑动 pc也能用

引用：http://download.csdn.net/detail/zw200813ht/7326281
最初版本是这个。有几个bug修改了一下（滑动之后就不能自动滚动了），添加了一个helper方便调用和修改，添加了一些功能，都有注释。

原先是es6写法，后修改为es5写法：结构如下

swipe_helper.js

/** * Created by wuyakun on 2017/2/28. */function initSwipe(arg) {    //提供参数用来修改position    var banner = '';    //设置默认参数    const _auto = 5000;    const _continuous = true;    const _disableScroll = false;    arg.auto = arg.auto || _auto;    if (arg.continuous == 'undefined') arg.continuous = _continuous;    if (arg.disableScroll == 'undefined') arg.disableScroll = _disableScroll;    if (arg.url == 'undefined') return;    //添加图片    var _div = "";    var addDiv = function (i) {        _div +=            "<div>" +                "<a onclick='onImgClick(" + i + "," + arg.callback + ")' href='javascript:void(0);'>" +                    "<img class='img-responsive' src='" + arg.url[i] + "' />" +                "</a>" +            "</div>";    };    for (var i = 0; i < arg.url.length; i++) {        addDiv(i);    }    //添加下方 点点    var _li = "";    var addLi = function (j) {        var cls =  j == 0 ? 'cur' : '' ;        _li +=            "<a class='positionA' href='javascript:void(0);'>" +                "<li class='" + cls + "'></li>" +            "</a>";    };    for (var j = 0; j < arg.url.length; j++) {        addLi(j);    }    //组合    document.getElementById('swipeView').innerHTML =        "<div class='addWrap'> " +            "<div class='swipe' id='mySwipe'> " +                "<div class='swipe-wrap'>" +                    _div +                "</div> " +            "</div> " +            "<ul id='position'>" +            _li +            "</ul> " +        "</div>";    var bullets = document.getElementById('position').getElementsByTagName('li');    banner = Swipe(document.getElementById('mySwipe'), {        auto: arg.auto,        continuous: arg.continuous,        disableScroll: arg.disableScroll,        callback: function (pos) {            var i = bullets.length;            while (i--) {                bullets[i].className = '';            }            bullets[pos].className = 'cur';        }    });    //给下方的点点加上点击事件    var allPosition = $(".positionA");    var attrAllPosition = function (n) {        $(allPosition[n]).click(function () {            onPositionClick(n, banner)        });    };    for (var n = 0; n < allPosition.length; n++) {        attrAllPosition(n);    }}/** * 当图片点击时 * @param index * @param callback */function onImgClick(index, callback) {    callback(index);}/** * 当下方点点被点击时 * @param index * @param banner */function onPositionClick(index, banner) {    banner.slide(index);}

swipe.js

/* * Swipe 2.0 * * Brad Birdsall * Copyright 2013, MIT License * */function Swipe(container, options) {    "use strict";    // utilities    var noop = function () {    }; // 简单的无操作功能    var offloadFn = function (fn) {        setTimeout(fn || noop, 0)    }; // 卸载功能的执行    // 检查浏览器的功能    var browser = {        addEventListener: !!window.addEventListener,        touch: ('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch,        transitions: (function (temp) {            var props = ['transformProperty', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform'];            for (var i in props) if (temp.style[props[i]] !== undefined) return true;            return false;        })(document.createElement('swipe'))    };    // 如果没有根元素退出    if (!container) return;    var element = container.children[0];    var slides, slidePos, width;    options = options || {};    var index = parseInt(options.startSlide, 10) || 0;    var speed = options.speed || 300;    options.continuous = options.continuous ? options.continuous : true;    function setup() {        // 缓存的幻灯片        slides = element.children;        //创建一个数组来存储每个幻灯片的当前位置        slidePos = new Array(slides.length);        // 确定每个幻灯片的宽度        width = container.getBoundingClientRect().width || container.offsetWidth;        element.style.width = (slides.length * width) + 'px';        // 栈元素        var pos = slides.length;        while (pos--) {            var slide = slides[pos];            slide.style.width = width + 'px';            slide.setAttribute('data-index', pos);            if (browser.transitions) {                slide.style.left = (pos * -width) + 'px';                move(pos, index > pos ? -width : (index < pos ? width : 0), 0);            }        }        if (!browser.transitions) element.style.left = (index * -width) + 'px';        container.style.visibility = 'visible';    }    function prev() {        if (index) slide(index - 1);        else if (options.continuous) slide(slides.length - 1);    }    function next() {        if (index < slides.length - 1) slide(index + 1);        else if (options.continuous) slide(0);    }    function slide(to, slideSpeed) {        // 如果已经滑不要求        if (index == to) return;        if (browser.transitions) {            var diff = Math.abs(index - to) - 1;            var direction = Math.abs(index - to) / (index - to); // 1:right -1:left            while (diff--) move((to > index ? to : index) - diff - 1, width * direction, 0);            move(index, width * direction, slideSpeed || speed);            move(to, 0, slideSpeed || speed);        } else {            animate(index * -width, to * -width, slideSpeed || speed);        }        index = to;        offloadFn(options.callback && options.callback(index, slides[index]));    }    function move(index, dist, speed) {        translate(index, dist, speed);        slidePos[index] = dist;    }    function translate(index, dist, speed) {        var slide = slides[index];        var style = slide && slide.style;        if (!style) return;        style.webkitTransitionDuration =            style.MozTransitionDuration =                style.msTransitionDuration =                    style.OTransitionDuration =                        style.transitionDuration = speed + 'ms';        style.webkitTransform = 'translate(' + dist + 'px,0)' + 'translateZ(0)';        style.msTransform =            style.MozTransform =                style.OTransform = 'translateX(' + dist + 'px)';    }    function animate(from, to, speed) {        // 如果不是动画，只是重新定位        if (!speed) {            element.style.left = to + 'px';            return;        }        var start = +new Date;        var timer = setInterval(function () {            var timeElap = +new Date - start;            if (timeElap > speed) {                element.style.left = to + 'px';                begin();                options.transitionEnd && options.transitionEnd.call(event, index, slides[index]);                clearInterval(timer);                return;            }            element.style.left = (( (to - from) * (Math.floor((timeElap / speed) * 100) / 100) ) + from) + 'px';        }, 4);    }    // 安装程序自动幻灯片    var interval;    function begin() {        stop();        interval = setTimeout(next, options.auto);    }    function stop() {        clearTimeout(interval);    }    // 设置初始变量    var start = {};    var delta = {};    var isScrolling;    // 设置事件捕获    var events = {        handleEvent: function (event) {            switch (event.type) {                case 'touchstart':                    this.start(event);                    break;                case 'touchmove':                    this.move(event);                    break;                case 'touchend':                    offloadFn(this.end(event));                    break;                case 'webkitTransitionEnd':                case 'msTransitionEnd':                case 'oTransitionEnd':                case 'otransitionend':                case 'transitionend':                    offloadFn(this.transitionEnd(event));                    break;                case 'resize':                    offloadFn(setup.call());                    break;            }            if (options.stopPropagation) event.stopPropagation();        },        start: function (event) {            var touches = event.touches[0];            // 测量的起始值            start = {                // 得到初始的触摸坐标                x: touches.pageX,                y: touches.pageY,                // 存储时间确定接触时间                time: +new Date            };            // 用于测试的第一移动事件            isScrolling = undefined;            // 复位三角洲和最后计算值            delta = {};            // 设置touchmove和touchend监听            element.addEventListener('touchmove', this, false);            element.addEventListener('touchend', this, false);        },        move: function (event) {            // 确保一个触摸不捏刷            if (event.touches.length > 1 || event.scale && event.scale !== 1) return            if (options.disableScroll) event.preventDefault();            var touches = event.touches[0];            // 计算改变后的 x 和 y            delta = {                x: touches.pageX - start.x,                y: touches.pageY - start.y            };            // 确定测试运行——一个滚动时间测试            if (typeof isScrolling == 'undefined') {                isScrolling = !!( isScrolling || Math.abs(delta.x) < Math.abs(delta.y) );            }            // 如果用户没有试图垂直滚动            if (!isScrolling) {                // 防止本机滚动                event.preventDefault();                // 停止幻灯片显示                stop();                // 如果第一个或最后一个滑动阻力增加                delta.x =                    delta.x /                    ( (!index && delta.x > 0               // if first slide and sliding left                        || index == slides.length - 1        // or if last slide and sliding right                        && delta.x < 0                       // and if sliding at all                    ) ?                        ( Math.abs(delta.x) / width + 1 )      // determine resistance level                        : 1 );                                 // no resistance if false                // 转化 1:1                translate(index - 1, delta.x + slidePos[index - 1], 0);                translate(index, delta.x + slidePos[index], 0);                translate(index + 1, delta.x + slidePos[index + 1], 0);            }        },        end: function (event) {            // 计算持续时间            var duration = +new Date - start.time;            // 确定滑动尝试触发下一个/上一页滑动            var isValidSlide =                Number(duration) < 250               // if slide duration is less than 250ms                && Math.abs(delta.x) > 20            // and if slide amt is greater than 20px                || Math.abs(delta.x) > width / 2;      // or if slide amt is greater than half the width            // 如果尝试确定滑过去的开始和结束            var isPastBounds =                !index && delta.x > 0                            // 如果第一个幻灯片和幻灯片AMT大于0                || index == slides.length - 1 && delta.x < 0;    // 或者如果最后一张幻灯片,幻灯片amt小于0            // 确定滑动方向(true:right, false:left)            var direction = delta.x < 0;            // 如果不垂直滚动            if (!isScrolling) {                if (isValidSlide && !isPastBounds) {                    if (direction) {                        move(index - 1, -width, 0);                        move(index, slidePos[index] - width, speed);                        move(index + 1, slidePos[index + 1] - width, speed);                        index += 1;                    } else {                        move(index + 1, width, 0);                        move(index, slidePos[index] + width, speed);                        move(index - 1, slidePos[index - 1] + width, speed);                        index += -1;                    }                    options.callback && options.callback(index, slides[index]);                } else {                    move(index - 1, -width, speed);                    move(index, 0, speed);                    move(index + 1, width, speed);                }            }            // 取消touchmove和touchend事件监听器,直到touchstart再次调用            element.removeEventListener('touchmove', events, false)            element.removeEventListener('touchend', events, false)        },        transitionEnd: function (event) {            if (parseInt(event.target.getAttribute('data-index'), 10) == index) {                begin();                options.transitionEnd && options.transitionEnd.call(event, index, slides[index]);            }        }    };    // 触发设置    setup();    // 如果适用则开始自动幻灯片    begin();    // 添加事件监听器    if (browser.addEventListener) {        // 设置touchstart事件元素        if (browser.touch) element.addEventListener('touchstart', events, false);        if (browser.transitions) {            element.addEventListener('webkitTransitionEnd', events, false);            element.addEventListener('msTransitionEnd', events, false);            element.addEventListener('oTransitionEnd', events, false);            element.addEventListener('otransitionend', events, false);            element.addEventListener('transitionend', events, false);        }        //设置在窗口调整大小事件        window.addEventListener('resize', events, false);    } else {        window.onresize = function () {            setup()        }; // to play nice with old IE    }    // 公开Swipe API    return {        setup: function () {            setup();        },        slide: function (to, speed) {            stop();            slide(to, speed);        },        prev: function () {            // cancel slideshow            stop();            prev();        },        next: function () {            stop();            next();        },        getPos: function () {            // return current index position            return index;        },        kill: function () {            // 取消幻灯片            stop();            // reset element            element.style.width = 'auto';            element.style.left = 0;            // reset slides            var pos = slides.length;            while (pos--) {                var slide = slides[pos];                slide.style.width = '100%';                slide.style.left = 0;                if (browser.transitions) translate(pos, 0, 0);            }            // 删除事件侦听器            if (browser.addEventListener) {                // remove current event listeners                element.removeEventListener('touchstart', events, false);                element.removeEventListener('webkitTransitionEnd', events, false);                element.removeEventListener('msTransitionEnd', events, false);                element.removeEventListener('oTransitionEnd', events, false);                element.removeEventListener('otransitionend', events, false);                element.removeEventListener('transitionend', events, false);                window.removeEventListener('resize', events, false);            }            else {                window.onresize = null;            }        }    }}if (window.jQuery || window.Zepto) {    (function ($) {        $.fn.Swipe = function (params) {            return this.each(function () {                $(this).data('Swipe', new Swipe($(this)[0], params));            });        }    })(window.jQuery || window.Zepto)}

swipe.css

body {    margin: 0;    padding: 0}.addWrap {    position: relative;    width: 1920px;    height: 580px;    background: #fff;    margin: 0;    padding: 0;}.addWrap .swipe {    overflow: hidden;    visibility: hidden;    position: relative;}.addWrap .swipe-wrap {    overflow: hidden;    position: relative;}.addWrap .swipe-wrap > div {    float: left;    width: 100%;    position: relative;}/*点点*/#position {    position: absolute;    bottom: 0;    right: 0;    padding-right: 8px;    margin: 0;    background: #00000000;    /*opacity: 0.4;*/    width: 100%;    /*filter: alpha(opacity=50);*/    text-align: center;}.positionA {}#position li {    width: 70px;    height: 8px;    margin: 10px 8px;    display: inline-block;    border: 2px solid #fff;    border-radius: 5px;    background-color: rgba(0, 0, 0, 0);}#position li.cur {    background-color: #42bd7e;}.img-responsive {    display: block;    max-width: 100%;    height: auto;}

/** * Created by wuyakun on 2017/4/18. *//** * 设置banner * @type {string[]} */var url = ['./images/home/banner/banner1.jpg',    './images/home/banner/banner2.jpg',    './images/home/banner/banner3.jpg',    './images/home/banner/banner4.jpg',    './images/home/banner/banner5.jpg'];initSwipe({    url: url,    callback: function (position) {        console.log(position);        window.location.href = "http://www.baidu.com";    }});