微信小程序电商实战-购物车（上）

好久没更新小程序电商实战的文章了，是因为最近一直做整体架构调整，一些准备工作也是比较耗费时间的。在这几天将会有新版的小程序电商教程推出，先透露一下新版将会以 https 的方式请求动态获取数据来展现，不再是目前的静态页面了新版也更贴近于实战。这篇购物车因为内容比较多特别是中间有用到 template 模板的只是点，所以会分文上下两部分。大家耐心看完哦~~~

购物车效果

购物车效果图.gif

cart.wxml

购物车商品列表布局

<view class="scroll" hidden="{{hidden}}">
<scroll-view class="scroll" scroll-y="true">
  <view class="separate"></view>
  <view wx:for="{{carts}}">
    <view class="cart_container">  
      <view  wx:if="{{!item.isSelect}}">
            <icon class="item-select" bindtap="switchSelect" data-index="{{index}}" data-id="{{index}}"  type="circle" size="20"></icon>
      </view>
      <view wx:elif="{{item.isSelect}}">
            <icon class="item-select" bindtap="switchSelect" data-index="{{index}}" data-id="{{index}}"  type="success" color="#f0145a" size="20"></icon>
      </view>

      <image class="item-image" src="{{item.pic}}"></image>
      <import src="../template/template.wxml" />
      <view class="column">
        <text class="title">{{item.name}}</text>
        <view class="row">
          <text class="sku-price">￥{{item.price * item.count}}</text>
          <view class="sku">
              <template is="quantity"  data="{{ ...item,index:index}}" /> 
          </view>
        </view>

      </view>
    </view>
    <view class="separate"></view>
  </view>
</scroll-view>
</view>

购物车下方合计结算布局

<view class="bottom_total" hidden="{{hidden}}">
  <view class="bottom_line"></view>

  <view class="row">

    <view  wx:if="{{!isAllSelect}}">
            <icon class="item-allselect" bindtap="allSelect" type="circle" size="20"></icon>
      </view>
      <view wx:elif="{{isAllSelect}}">
            <icon class="item-allselect" bindtap="allSelect" type="success" color="#f0145a" size="20"></icon>
      </view>
    <text class="small_text">全选</text>
    <text>合计:￥ </text>
    <text class="price">{{totalMoney}}</text>
    <button class="button-red" bindtap="toBuy" formType="submit">去结算      </button>
  </view>
</view>

备注：引用的 template 模板部分先不用管可以注释掉，可以继续往下面看

cart.wxss

@import "../template/template.wxss";
page{  
  background: #f5f5f5;  
}  
.cart_container {
  display: flex;
  flex-direction: row;
  background-color: #FFFFFF;
  margin-bottom: 10rpx;
}
.scroll {
   margin-bottom: 120rpx; 
}
.column {
  display: flex;
  flex-direction: column;
}
.row {
  display: flex;
  flex-direction: row;
   align-items: center;
    /* margin-top: 40rpx;  */
  /* border: 1rpx solid #000000;  */
}
.sku {
  margin-left: 100rpx;
  position: absolute;
  right: 30rpx;
  margin-top: 30rpx; 
}
.sku-price {
  color: red;
  position: relative;
   margin-top: 30rpx; 
}
.price {
  color: red;
  position: relative;
}
.title {
  font-size: 38rpx;
  margin-top: 40rpx;
}
.small_text {
  font-size: 28rpx;
  margin-right: 40rpx;
  /* margin-left: 10rpx; */
  margin-left: 25rpx;
}
.item-select {
  width: 40rpx;
  height: 40rpx;
  margin-top: 90rpx;
  margin-left: 20rpx;
}
.item-allselect {
  width: 40rpx;
  height: 40rpx; 
  margin-left: 20rpx;
   margin-top:25rpx;   
}
.item-image {
  width: 180rpx;
  height: 180rpx;
  margin: 20rpx;
}
 .bottom_line {
  width: 100%;
  height: 2rpx;
  background: lightgray;
} 
.bottom_total {
  position: fixed;
  display: flex;
  flex-direction: column;
  bottom: 0;
  width: 100%;
  height: 120rpx;
  line-height: 120rpx;
  background: white;
  /* margin-top: 300rpx; */
  border-top: 1rpx solid #ccc;
}
.button-red {
  background-color: #f0145a; 
  position: fixed;
  right: 0;
  color: white;
  text-align: center;
  display: inline-block;
  font-size: 30rpx;
  border-radius: 0rpx;
  width: 30%;
  height: 120rpx;
  line-height: 120rpx;
  /* border: 1rpx solid #ccc; */
}

备注 @import "../template/template.wxss"; 先不用管可以注释掉，后面会有代码

cart.js

#初始化数据
data: {
    hidden:null,
    hiddenEmpty:true,
    isAllSelect: false,
    totalMoney: 0,
    // 商品详情介绍
    carts: [
      {
        id: 1,
        pic: "http://mz.djmall.xmisp.cn/files/product/20161201/148058328876.jpg",
        name: "日本资生堂洗颜",
        price: 200,
        isSelect: false,
        // 数据设定
        count: 2
      },
      {
        id: 2,
        pic: 'http://mz.djmall.xmisp.cn/files/product/20161201/148058301941.jpg',
        name: "倩碧焕妍活力精华露",
        price: 340,
        isSelect: false,
        // 数据设定
        count: 1
      },
      {
        id: 3,
        pic: 'http://mz.djmall.xmisp.cn/files/product/20161201/14805828016.jpg',
        name: "特效润肤露",
        price: 390,
        isSelect: false,
        // 数据设定
        count: 1
      },
      {
        id: 4,
        pic: 'http://mz.djmall.xmisp.cn/files/product/20161201/148058228431.jpg',
        name: "倩碧水嫩保湿精华面霜",
        price: 490,
        isSelect: false,
        // 数据设定
        count: 1
      },
      {
        id: 5,
        pic: 'http://mz.djmall.xmisp.cn/files/product/20161201/148057953326.jpg',
        name: "兰蔻清莹柔肤爽肤水",
        price: 289,
        isSelect: false,
        // 数据设定
        count: 1
      },
      {
        id: 6,
        pic: "http://mz.djmall.xmisp.cn/files/product/20161201/148057921620_middle.jpg",
        name: "LANCOME兰蔻小黑瓶精华",
        price: 230,
        isSelect: false,
        // 数据设定
        count: 1
      },
    ],
  },

未完待续......

明天将会把购物车用到的 template 模板、选择计算和数量加减的部分实现！

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