UNIAPP实战项目笔记32 购物车无商品默认样式

男娘i 2024-04-01 12:57 87阅读 0赞

### UNIAPP实战项目笔记32 购物车无商品默认样式 ###

#### 核心代码 shopcart.vue ####

*  list空值，无数据时候展示  
    `<template v-if=" list.length > 0 "> </template> <template v-else> </template>`

<template>
        <view class="shop-cart">
            <template v-if=" list.length > 0 ">
                    
                
                <uniNavBar
                    title="购物车"
                    :rightText=" isNavBar ? '完成' : '编辑'"
                    fixed="true"
                    statusBar="true"
                    @clickRight=" isNavBar = !isNavBar"
                ></uniNavBar>
                
                
                <view class="shop-item" v-for="(item,index) in list" :key="index">
                    <label for="" class="radio">
                        <radio value="" color="#FF3333" /> <text></text>
                    </label>
                    <image class="shop-img" :src="item.imgUrl" mode=""></image>
                    <view class="shop-text">
                        <view class="shop-name">
                            {
        {
        item.name}}
                        </view>
                        <view class="shop-color f-color">
                            {
        {
        item.color}}
                        </view>
                        <view class="shop-price">
                            <view class="">
                                ￥{
        {
        item.pprice}}
                            </view>
                            <view class="">
                                X {
        {
        item.num}}
                            </view>
                        </view>
                    </view>
                </view>
                
                <view class="shop-foot">
                    <label for="" class="radio foot-radio">
                        <radio value="" color="#FF3333"></radio><text>全选</text>
                    </label>
                    <view class="foot-total">
                        <view class="foot-count">
                            合计：
                            <text class="f-active-color">
                                ￥0
                            </text>
                        </view>
                        <view class="foot-num">
                            结算(0)
                        </view>
                    </view>
                    
                </view>
                
            </template>
            <template v-else>
                <uniNavBar 
                    title="购物车"
                    fixed="true"
                    statusBar="true"
                ></uniNavBar>
                <view class="shop-else-list">
                    <text>囧~ 购物车还是空的~</text>
                </view>
            </template>
        </view>
    </template>
    
    <script>
        import uniNavBar from '@/components/uni/uni-nav-bar/uni-nav-bar.vue'
        
        // 状态机引入
        import {
        mapState} from 'vuex'
        export default {
        
            data() {
        
                return {
        
                    isNavBar:false,
                }
            },
            computed:{
        
                // 状态机数据处理
                ...mapState({
        
                    list:state=>state.cart.list
                })
            },
            components:{
        
                uniNavBar
            },
            methods: {
        
                
            }
        }
    </script>
    
    <style lang="scss">
    
    .shop-list{
        
        padding-bottom: 100rpx;
    }
    .shop-else-list{
        
        position: absolute;
        left: 0;
        top: 0;
        right: 0;
        bottom: 0;
        background-color: #f7f7f7;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .shop-item{
        
        display: flex;
        padding: 20rpx;
        align-items: center;
        background-color: #f7f7f7;
        margin-bottom: 10rpx;
    }
    .shop-img{
        
        width: 200rpx;
        height: 200rpx;
    }
    .shop-text{
        
        flex: 1;
        padding-left: 20rpx;
    }
    .shop-color{
        
        font-size: 24rpx;
    }
    .shop-price{
        
        display: flex;
        justify-content: space-between;
    }
    
    .shop-foot{
        
        border-top: 2rpx solid #f7f7f7;
        background-color: #FFFFFF;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100rpx;
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 100rpx;
    }
    .foot-radio{
        
        padding-left: 20rpx;
    }
    .foot-total{
        
        display: flex;
    }
    .foot-count{
        
        line-height: 100rpx;
        padding: 0 20rpx;
        font-size: 32rpx;
    }
    .foot-num{
        
        background-color: #49bdfb;
        color: #FFFFFF;
        padding: 0 60rpx;
        line-height: 100rpx;
    }
    </style>

#### cart.js代码 ####

状态中 的list 为空值 显示空数据模板

export default{
        
        state:{
        
            list:[]
        }
    }

#### 实例图片 ####

![购物车无商品页面案例][27367a14329043b4a474a533df844556.png]

*  复制粘贴代码即可看到次图片案例

#### 目录结构 ####

##### 前端目录结构 #####

*  manifest.json 配置文件： appid、logo…
 *  pages.json 配置文件： 导航、 tabbar、 路由
 *  main.js vue初始化入口文件
 *  App.vue 全局配置：样式、全局监视
 *  static 静态资源：图片、字体图标
 *  page 页面
    
     *  index
        
         *  index.vue
     *  list
        
         *  list.vue
     *  my
        
         *  my.vue
     *  search
        
         *  search.vue
     *  search-list
        
         *  search-list.vue
     *  shopcart
        
         *  shopcart.vue
     *  details
        
         *  details.vue
 *  components 组件
    
     *  index
        
         *  Banner.vue
         *  Hot.vue
         *  Icons.vue
         *  indexSwiper.vue
         *  Recommend.vue
         *  Shop.vue
     *  common
        
         *  Card.vue
         *  Commondity.vue
         *  CommondityList.vue
         *  Line.vue
         *  ShopList.vue
     *  uni
        
         *  uni-number-box
            
             *  uni-number-box.vue
         *  uni-icons
            
             *  uni-icons.vue
         *  uni-nav-bar
            
             *  uni-nav-bar.vue
 *  common 公共文件：全局css文件 || 全局js文件
    
     *  api
        
         *  request.js
     *  common.css
     *  uni.css
 *  store vuex状态机文件
    
     *  modules
        
         *  cart.js
     *  index.js

[27367a14329043b4a474a533df844556.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/f932ad58e8984ed8934ece71c70c43df.png