vue饿了吗实战问题

Question

在vue实战练习中 ; 跟到购物车点击弹出已购买的商品数据蒙层时 ; 操作蒙层内的+- ; 蒙层也跟着消失了

求解

<template>
  <div class="shopcart">
    <div class="content" @click="toggleList">
      <!-- 内容左 -->
      <div class="content-left">
       
      </div>
      <!-- 内容右 -->
      <div class="content-right">
        
      </div>
      <!-- 小球的容器 -->
      <div class="ball-container">
        
      </div>
      <!-- 点击购物车弹出浮层 -->
      <transition name="fold">
        <div class="shopcart-list" v-show="listShow">
          <div class="list-header">
            <h1 class="title">购物车</h1>
            <span class="empty">清空</span>
          </div>
          <div class="list-content" ref="listContent">
            <ul>
              <li class="food" v-for="food in selectFoods">
                <span class="name">{{food.name}}</span>
                <div class="price">
                  <span>￥{{food.price*food.count}}</span>
                </div>
                <div class="cartcontrol-wrapper">
                  <cartcontrol :food="food"></cartcontrol>
                </div>
              </li>
            </ul>
          </div>
        </div>
      </transition>
    </div>
  </div>
</template>

<script type="text/ecmascript-6">
import BScroll from 'better-scroll';
import cartcontrol from '../cartcontrol/cartcontrol';
export default {
  props: {
    selectFoods: {
      type: Array,
      default() {
        return [];
      }

    },
    deliveryPrice: {
      type: Number,
      default: 0
    },
    minPrice: {
      type: Number,
      default: 0
    }
  },
  data() {
    return {
      balls: [
        { show: false },
        { show: false },
        { show: false },
        { show: false },
        { show: false }
      ],
      dropBalls: [],
      fold: true

    };
  },
  computed: {
    
    // 数量计算
    totalCount() {
      let count = 0;
      this.selectFoods.forEach((food) => {
        count += food.count;
      });
      return count;
    },
    
    // 计算购物车点击弹层显示属性
    listShow() {
      if (!this.totalCount) {
        this.fold = true;
        return false;
      }
      let show = !this.fold;
      if (show) {
        this.$nextTick(() => {
          if (!this.scroll) {
            this.scroll = new BScroll(this.$refs.listContent, {
              click: true
            });
          } else {
            this.scroll.refresh();
          }

        });
      }
      return show;
    }
  },
  methods: {
    
    // 控制购物车弹层是否显示
    toggleList() {
      if (!this.totalCount) {
        return;
      }
      this.fold = !this.fold;
    },
    
  },
  components: {
    cartcontrol
  }

};
</script>

<style lang="stylus" rel="stylesheet/stylus">
@import '../../common/stylus/mixin';

.shopcart {
  position: fixed;
  left: 0;
  bottom: 0;
  z-index: 50;
  width: 100%;
  height: 48px;

  .content {
    display: flex;
    background: #141d27;
    color: rgba(255, 255, 255, 0.4);

    .content-left {
      flex: 1;
      font-size: 0;

      .logo-wrapper {
        display: inline-block;
        position: relative;
        top: -10px;
        margin: 0 12px;
        padding: 6px;
        width: 56px;
        height: 56px;
        box-sizing: border-box;
        vertical-align: top;
        border-radius: 50%;
        background: #141d27;

        .logo {
          width: 100%;
          height: 100%;
          border-radius: 50%;
          background: #2b343c;
          text-align: center;

          &.highlight {
            background: rgb(0, 160, 220);
          }

          .icon-shopping_cart {
            line-height: 44px;
            font-size: 24px;
            color: #80858a;

            &.highlight {
              color: #fff;
            }
          }
        }

        .num {
          position: absolute;
          top: 0;
          right: 0;
          width: 24px;
          height: 16px;
          line-height: 16px;
          text-align: center;
          border-radius: 16px;
          font-size: 9px;
          font-weight: 700;
          color: #fff;
          box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.4);
          background: rgb(249, 20, 20);
        }
      }

      .price {
        display: inline-block;
        vertical-align: top;
        line-height: 24px;
        margin-top: 12px;
        padding-right: 12px;
        border-right: 1px solid rgba(255, 255, 255, 0.1);
        box-sizing: border-box;
        font-size: 16px;
        font-weight: 700;

        &.highlight {
          color: #fff;
        }
      }

      .desc {
        display: inline-block;
        margin: 12px 0 0 12px;
        vertical-align: top;
        line-height: 24px;
        font-size: 10px;
      }
    }

    .content-right {
      flex: 0 0 105px;
      width: 105px;

      .pay {
        height: 48px;
        line-height: 48px;
        text-align: center;
        font-size: 12px;
        font-weight: 700;
        background: #2b333b;

        &.not-enough {
          background: #2b333b;
        }

        &.enough {
          background: #00b43c;
          color: #fff;
        }
      }
    }

    .ball-container {
      .ball {
        position: fixed;
        left: 32px;
        bottom: 22px;
        z-index: 200;
        transition: all 0.4s cubic-bezier(0.49, -0.29, 0.75, 0.41);

        .inner {
          width: 16px;
          height: 16px;
          border-radius: 50%;
          background: rgb(0, 160, 220);
          transition: all 0.4s linear;
        }
      }
    }

    .shopcart-list {
      position: absolute;
      top: 0;
      left: 0;
      z-index: -1;
      width: 100%;
      transform: translate3d(0, -100%, 0);

      &.fold-enter-active, &.fold-leave-active {
        transition: all 0.5s;
      }

      &.fold-enter, &.fold-leave-active {
        transform: translate3d(0, 0, 0);
      }

      .list-header {
        height: 40px;
        line-height: 40px;
        padding: 0 18px;
        background: #f3f5f7;
        border-bottom: 1px solid rgba(7, 17, 27, 0.1);

        .title {
          float: left;
          font-size: 14px;
          color: rgb(7, 17, 27);
        }

        .empty {
          float: right;
          font-size: 12px;
          color: rgb(0, 160, 220);
        }
      }

      .list-content {
        padding: 0 18px;
        max-height: 217px;
        background: #fff;
        overflow: hidden;

        .food {
          position: relative;
          padding: 12px 0;
          box-sizing: border-box;
          border-1px(rgba(7, 17, 27, 0.1));

          .name {
            line-height: 24px;
            font-size: 14px;
            color: rgb(7, 17, 27);
          }

          .price {
            position: absolute;
            right: 90px;
            bottom: 12px;
            line-height: 24px;
            font-weight: 700;
            font-size: 14px;
            color: rgb(240, 20, 20);
          }

          .cartcontrol-wrapper {
            position: absolute;
            right: 0;
            bottom: 6px;
          }
        }
      }
    }
  }
}
</style>

第三行'toggleList'为点击事件 ; 绑定在了整个组件上 ; 当购物车被点击时 ； 蒙层显示 ; 点击蒙层内元素时 ; 蒙层跟着消失了

点击蒙层内元素 ;不想让蒙层消失 ； 试了@click.stop没有效果

Answer 1

层级出现了问题~

Answer 2

你蒙层是不是也添加事件了？