js实现购物车左滑删除

使用 js 和jquery动画实现购物车左滑，请引入jquery库，不然会报错哦！

首页编写页面，注意布局，滑动分成两部分，商品图片和信息放在一个布局，删除和移入收藏放在一起。

其中js用到了 touchstart touchend addEventListener事件。

获取的是滑动的方向距离即定义为 startX, startY, endX, endY 具体实现附完整代码 githup：https://github.com/ad-skylar/cart-leftslide，下面是展示图

<!DOCTYPE html>

<html>

  <head>

    <meta charset="utf-8" />

    <meta name="viewport"  content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no"/>

    <title>购物车</title>

    <link rel="stylesheet" type="text/css" href="index.css" />

  </head>

  <body>

    <div class="cart clearfix">

      <!-- 购物车列表 start-->

      <div class="list-goods  clearfix">

        <div class="scroll-part">

          <!-- 商品信息 sart -->

          <div class="scroll-left ui-flex" id="part1">

            <div class="ui-flex goods-img " style="width:40%;">

                <img class="" src="data:images/img1.png" />

            </div>

            <div class="main-info-wrapper ui-flex" style="width:58%">

              <div class="goods-info">

                <div class="goods-info-title">Jordan官方AIR JORDAN 1 HIGH ZIP AJ1女子运动鞋高帮AQ3742</div>

                <div class="goods-info-size">

                  <div>100帆白/柠檬绿黄/空间蓝/草皮橙</div>

                  <div>尺码：38</div>

                </div>

                <div class="sell-price">

                  已降

                  <span>￥20.00</span>

                </div>

                <div class="goods-info-price">

                  <span class="price-now">￥799</span>

                  <span class="price-original">￥1299.00</span>

                </div>

              </div>

            </div>

          </div>

          <!-- 商品信息 sart -->

          <!-- 商品删除收藏按钮 sart -->

          <div class="handel-right ui-flex">

            <span class="move-collection ui-flex">

              移入收藏

            </span>

            <span class="delete ui-flex">

              删除

            </span>

          </div>

          <!-- 商品删除收藏按钮 sart -->

        </div>

      </div>

      <!--购物车列表 end-->

       <!-- 购物车列表 start-->

       <div class="list-goods  clearfix">

            <div class="scroll-part">

              <!-- 商品信息 sart -->

              <div class="scroll-left ui-flex" id="part1">

                <div class="ui-flex goods-img " style="width:40%;">

                    <img class="" src="data:images/img1.png" />

                </div>

                <div class="main-info-wrapper ui-flex" style="width:58%">

                  <div class="goods-info">

                    <div class="goods-info-title">Jordan官方AIR JORDAN 1 HIGH ZIP AJ1女子运动鞋高帮AQ3742</div>

                    <div class="goods-info-size">

                      <div>100帆白/柠檬绿黄/空间蓝/草皮橙</div>

                      <div>尺码：38</div>

                    </div>

                    <div class="sell-price">

                      已降

                      <span>￥20.00</span>

                    </div>

                    <div class="goods-info-price">

                      <span class="price-now">￥799</span>

                      <span class="price-original">￥1299.00</span>

                    </div>

                  </div>

                </div>

              </div>

              <!-- 商品信息 sart -->

              <!-- 商品删除收藏按钮 sart -->

              <div class="handel-right ui-flex">

                <span class="move-collection ui-flex">

                  移入收藏

                </span>

                <span class="delete ui-flex">

                  删除

                </span>

              </div>

              <!-- 商品删除收藏按钮 sart -->

            </div>

          </div>

          <!--购物车列表 end-->

    </div>

    <script src="js/jquery.min.js"></script>

    <script type="text/javascript" src="index.js"></script>

  </body>

</html>

css

*{

    margin:0;

    padding:0;

}

body{

    background-color: #efeff4;

    -webkit-overflow-scrolling: touch;

}

.list-goods{

    background-color: #fff;

    height: 160px;

    margin-top: 10px;

    overflow: hidden;

    white-space: nowrap;

    position: relative;

}

.scroll-part{

    float: left;

    white-space: nowrap;

    position: relative;

    width: 100%;

    height: 100%;

}

.list-goods:first-of-type{

    margin-top: 0;

}

.list-goods .goods-img{

    margin-right: 0.2rem;

    width: 40%;

    height: 40%;

}

.list-goods .goods-img img{

    width: 100%;

    height: 100%;

}

.scroll-left{

    position: absolute;

    width: 100%;

    background: #fff;

    box-sizing: border-box;

}

/* 商品信息 */

.goods-info{

    padding: 10px;

}

.goods-info .goods-info-title{

    font-size: 14px;

    color: #767676;

    white-space: pre-wrap;

}

.goods-info .goods-info-price{

    margin-top: 4px;

}

.goods-info .sell-price {

    color:#ff3e41;

    margin-top: 6px;

    font-size: 13px;

}

.goods-info .goods-info-size{

    color:#b0b0b0;

    font-size: 13px;

    padding: 4px 0;

}

.goods-info .goods-info-price .price-now{

    color: #cf170f;

    font-size: 13px;

    margin-right:4px;

}

.goods-info .goods-info-price .price-original{

    color: #6a6a6a;

    text-decoration: line-through;

    font-size: 0.38rem;

    margin-right: 0.7rem;

}

/* 商品删除收藏 */

.scroll-part .handel-right{

    color: #fff;

    position: relative;

    height: 100%;

    width: 30%;

    position: absolute;

    right: -11rem;

    top: 0;

}

.handel-right span{

    height: 100%;

    width: 38%;

    text-align: center;

    align-items: center;

    padding: 0 0.2rem;

    justify-content: center;

}

.handel-right .move-collection{

    background-color: #ffa800;

    white-space: pre-wrap;

}

.handel-right .delete{

    background-color: #fe3a3c;

    box-sizing: border-box;

    width: 68%;

}

/* 通用 */

/** flex */

.ui-flex { display: -webkit-box; display: -webkit-flex; display: flex; }

.clearfix{

    overflow: hidden;

}

.colorprimary{

    color: #ff3f3e !important;

}

$(function () {

    //左滑右滑效果

    var moveDiv = "";

    for (var i = 0; i < $(".scroll-left").length; i++) {

        moveDiv = $(".scroll-left")[i];

        var startX;

        moveDiv.addEventListener('touchstart', function (ev) {

            ev.preventDefault();

            startX = ev.touches[0].pageX;

            startY = ev.touches[0].pageY;

        }, false);

        moveDiv.addEventListener('touchend', function (ev) {

            ev.preventDefault();

            var endX, endY;

            endX = ev.changedTouches[0].pageX;

            endY = ev.changedTouches[0].pageY;

            var direction = GetSlideDirection(startX, startY, endX, endY);

            switch (direction) {

                case 1:

                    $(this).next().animate({ right: "0" });

                    $(this).animate({ left: "-8em" });

                    break;

                case 2:

                    $(this).next().animate({ right: "-11rem" });

                    $(this).animate({ left: "0" });

                    break;

                default:

            }

        }, false);

    } 

})

function GetSlideAngle(dx, dy) {

    return Math.atan2(dy, dx) * 180 / Math.PI;

}

//根据起点和终点返回方向 1：向左，2：向右,

function GetSlideDirection(startX, startY, endX, endY) {

    var dy = startY - endY;

    var dx = endX - startX;

    var result = 0;

    //如果滑动距离太短

    if (Math.abs(dx) < 2 && Math.abs(dy) < 2) {

        return result;

    }

    var angle = GetSlideAngle(dx, dy);

    if (angle >= -45 && angle < 45) {

        result = 2;

    } else if ((angle >= 135 && angle <= 180) || (angle >= -180 && angle < -135)) {

        result = 1;

    }

    return result;

}

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js实现购物车左滑删除

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