基于jQuery的移动轮播图（支持触屏）

时间：2023-03-08 22:34:49
基于jQuery的移动轮播图（支持触屏）

移动轮播图我看到两款，

一款是无线天猫的m.tmall.com，实现了无缝轮播。

一款是蘑菇街的，没有实现无缝轮播。

我自己重写一个，类似蘑菇街

<!doctype html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>基于jQuery的移动轮播图（支持触屏）</title>

    <style type="text/css">

    .WSCSlideWrapper{

        width: 420px;

        height: 180px;

        position: relative;

        overflow: hidden;

    }

    .WSCSlide{

        width: 1680px;

        height: 100%;

        font-size: 0;

        position: absolute;

        -webkit-transform:translate3d(0,0,0);

    }

    .WSCSlideTransition{

        -webkit-transition: all 0.5s 0s ease-in-out;

    }

    .WSCSlide_img{

        width: 420px;

        height: 180px;

    }

    </style>

</head>

<body>

    <div class="WSCSlideWrapper">

        <div class="WSCSlide WSCSlideTransition">

            <img class="WSCSlide_img" src="1.jpg" />

            <img class="WSCSlide_img" src="2.jpg" />

            <img class="WSCSlide_img" src="3.jpg" />

        </div>

        <div class="WSCSlideStatus"></div>

    </div>

<script type="text/javascript" src="jquery-2.1.0.min.js"></script>

<script type="text/javascript">

// 基于jQuery的移动端轮播插件，用zepto会有with问题

// 返回值  轮播对象

// 参数：

// WSCSlideTransition    Transition的class名

// WSCSlideWrapper    轮播的jQuery对象

// WSCSlide     包裹轮播图片jQuery对象

// WSCSlide_img   轮播图片列表jQuery对象

// timerNum     循环时间

function WSCMobileSlide(arg_obj) {

    /*

    参数:

    el是jQuery选择器

    返回值:

    matrix.m41是x值 number

    matrix.m42是y值 number

    参考链接 http://*.com/questions/5968227/get-the-value-of-webkit-transform-of-an-element-with-jquery

    参考链接 https://developer.apple.com/library/safari/documentation/AudioVideo/Reference/WebKitCSSMatrixClassReference/WebKitCSSMatrix/WebKitCSSMatrix.html#//apple_ref/javascript/instp/WebKitCSSMatrix/m41

    */

    function getTransform(el) {

        var style = window.getComputedStyle($(el).get(0));

        var matrix = new WebKitCSSMatrix(style.webkitTransform);

        return matrix;

    }

    function slideAnimate(x, y) {

        if (Math.abs(x) >= y) {

            // $(".WSCSlide").removeClass("WSCSlideTransition");

            $(".WSCSlide").css("-webkit-transform", "translate3d(0,0,0)");

        } else {

            // $(".WSCSlide").addClass("WSCSlideTransition");

            $(".WSCSlide").css("-webkit-transform", "translate3d(" + x + "px,0,0)");

        }

    }

    function getSlideTimer(timeNum) {

        if(typeof(timeNum) == "undefined"){

            timeNum = 3000;

        }

        var slideTimer = setInterval(function() {

            var x = getTransform(".WSCSlide").m41;

            x = x - ImgWidth;

            slideAnimate(x, endPosition);

        }, timeNum);

        return slideTimer;

    }

    function touchDragMe($element) {

        var gundongX = 0;

        var gundongY = 0;

        var d = document;

        var g = 'getElementById';

        var moveEle = $element;

        var stx = sty = etx = ety = curX = curY = 0;

        moveEle.on("touchstart", function(event) { //touchstart

            $element.removeClass(transitionName);

            clearInterval(slideTimer);

            var event = event.originalEvent;

            gundongX = 0;

            gundongY = 0;

            // 元素当前位置

            etx = parseInt(getT3d(moveEle, "x"));

            ety = parseInt(getT3d(moveEle, "y"));

            // 手指位置

            stx = event.touches[0].pageX;

            sty = event.touches[0].pageY;

        });

        moveEle.on("touchmove", function(event) {

            var event = event.originalEvent;

            // 防止拖动页面

            event.preventDefault();

            // 手指位置 减去 元素当前位置 就是 要移动的距离

            gundongX = event.touches[0].pageX - stx;

            gundongY = event.touches[0].pageY - sty;

            // 目标位置 就是 要移动的距离 加上 元素当前位置

            curX = gundongX + etx;

            curY = gundongY + ety;

            // *移动

            // moveEle.style.webkitTransform = 'translate3d(' + (curX) + 'px, ' + (curY) + 'px,0px)';

            // 只能移动Y轴方向

            // var realMoveEle = moveEle[0];

            moveEle[0].style.webkitTransform = 'translate3d(' + (curX) + 'px, ' + 0 + 'px,0px)';

        });

        moveEle.on("touchend", function(event) {

            // 手指接触屏幕的位置

            var oriX = etx;

            var oriY = ety;

            // 手指离开屏幕的位置

            etx = curX;

            ety = curY;

            var slidePosition = 0;

            for (var i = 0; i < ImgWidth_arr_length - 1; i++) {

                if (Math.abs(etx) > ImgWidth_arr[i]) {

                    if (oriX > etx) {

                        // 左滑

                        slidePosition = -ImgWidth_arr[i + 1];

                    } else {

                        // 右滑

                        slidePosition = -ImgWidth_arr[i];

                    }

                }

            }

            $element.addClass(transitionName);

            slideAnimate(slidePosition, endPosition);

            slideTimer = getSlideTimer(timerNum);

        });

        function getT3d(elem, ename) {

            var elem = elem[0];

            var str1 = elem.style.webkitTransform;

            if (str1 == "") return "0";

            str1 = str1.replace("translate3d(", "");

            str1 = str1.replace(")", "");

            var carr = str1.split(",");

            if (ename == "x") return carr[0];

            else if (ename == "y") return carr[1];

            else if (ename == "z") return carr[2];

            else return "";

        }

    }

    var transitionName = arg_obj["WSCSlideTransition"] || "WSCSlideTransition";

    var $WSCSlideWrapper = arg_obj["WSCSlideWrapper"] || $(".WSCSlideWrapper");

    var $WSCSlide = arg_obj["WSCSlide"] || $(".WSCSlide");

    var $WSCSlide_img = arg_obj["WSCSlide_img"] || $(".WSCSlide_img");

    var timerNum = arg_obj["timerNum"] || 3000;

    $WSCSlide_img.width($WSCSlideWrapper.width());

    $WSCSlide_img.height($WSCSlideWrapper.height());

    var ImgWidth_arr_length = $WSCSlide_img.length;

    var ImgWidth = $WSCSlide_img.width();

    $WSCSlide.width(ImgWidth * ImgWidth_arr_length);

    var WSCSlideWidth = $WSCSlide.width();

    // 轮播图终止位置

    var endPosition = WSCSlideWidth - ImgWidth;

    var ImgWidth_arr = [];

    for (var i = 0; i < ImgWidth_arr_length; i++) {

        ImgWidth_arr.push(i * ImgWidth);

    }

    // console.log(ImgWidth_arr);

    var slideTimer = getSlideTimer(timerNum);

    touchDragMe($WSCSlide, slideTimer);

    return slideTimer;

}

WSCMobileSlide({

    "WSCSlideTransition": "WSCSlideTransition",

    "WSCSlideWrapper": $(".WSCSlideWrapper"),

    "WSCSlide": $(".WSCSlide"),

    "WSCSlide_img": $(".WSCSlide_img"),

    "timerNum": 3000

});

</script>

</body>

</html>

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