UNIAPP实战项目笔记31 使用Vuex状态机管理购物车状态

青旅半醒 2024-04-01 12:27 54阅读 0赞

### UNIAPP实战项目笔记31 使用Vuex状态机管理购物车状态 ###

#### 核心代码 ####

##### main.js 中 添加引入状态机并挂载 #####

import App from './App'
    
    // #ifndef VUE3
    import Vue from 'vue'
    Vue.config.productionTip = false
    
    // 引入状态机
    import store from 'store/index.js'
    Vue.prototype.$store = store;
    
    App.mpType = 'app'
    const app = new Vue({
        
        ...App,
        store  // 挂载状态机
    })
    app.$mount()
    // #endif
    
    // #ifdef VUE3
    import {
         createSSRApp } from 'vue'
    export function createApp() {
        
      const app = createSSRApp(App)
      return {
        
        app
      }
    }
    // #endif

##### cart.js 购物车状态机文件 #####

export default{
        
        state:{
        
            list:[
                    {
        
                        id:1,
                        name:"332经济法能聚聚会技能大赛 经济法能聚聚会技能大赛",
                        color:"颜色：嘿嘿嘿激活",
                        imgUrl:"../../static/logo.png",
                        pprice:"27",
                        num:1,
                        checked:false
                    },{
        
                        id:2,
                        name:"032经济法能聚聚会技能大赛 经济法能聚聚会技能大赛",
                        color:"颜色：嘿嘿嘿激活",
                        imgUrl:"../../static/logo.png",
                        pprice:"48",
                        num:6,
                        checked:false
                    }
                ]
            
        }
    }

##### index.js 状态机index文件 ,并引入购物车状态机 #####

import Vue from 'vue'
    import Vuex from 'vuex'
    
    Vue.use(Vuex);
    
    // 购物车
    import cart from './modules/cart.js'
    
    export default new Vuex.Store({
        
        modules:{
        
            cart
        }
    })

##### shopcart.vue 购物车页面 使用状态机中的数据渲染 #####

<template>
        <view class="shop-view">
            
            <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>
        </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:{
        
                ...mapState({
        
                    list:state=>state.cart.list
                })
            },
            components:{
        
                uniNavBar
            },
            methods: {
        
                
            }
        }
    </script>
    
    <style lang="scss">
    .shop-view{
        
        // padding-bottom: 50rpx;
    }
    .shop-list{
        
        padding-bottom: 100rpx;
    }
    .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>

#### 实际案例图片 ####

![使用状态机中的数据渲染购物车][f213a9a11d964f26939259111bd7176f.png]

#### 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

[f213a9a11d964f26939259111bd7176f.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/073f0edb91ba4b19ba8eb51bca80cc53.png