微信小程序商城开发之商城首页轮播图、商品分类导航以及新品特卖的实现代码

互联网 18-8-16

上一篇我们设置了小程序后台服务器https域名设置、搭建了小程序基础的https框架和实现了首页导航模块，今天我们一起来看一下电商首页轮播、分类导航和新品特卖模块的实现。

实现功能模块

主要实现2、3、4，用到的API数据服务如下图所示：

首页轮播模块实现

home.js

<!--首页轮播 banner -->     <swiper indicator-dots="{{indicatorDots}}" autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}">     <block wx:for="{{banners}}">       <swiper-item>         <image src="{{item.imgUrl}}" mode="widthFix"/>       </swiper-item>     </block>   </swiper>

home.wxss

/* 直接设置swiper属性 */ swiper {       height: 300rpx; } swiper-item image {       width: 100%;  height: 100%; }

home.js

页面初始化轮播数据

data: {     navbars:null,//接上篇导航初始化数据     currentTab: 0,//接上篇导航初始化数据     banners:null,     indicatorDots: true, //是否显示面板指示点     autoplay: true, //是否自动切换     interval: 3000, //自动切换时间间隔,3s     duration: 1000, //  滑动动画时长1s   },

页面初始化加载轮播数据函数

/**    * 生命周期函数--监听页面加载    */  onLoad: function (options) {         var that = this;    //加载navbar导航条，接上篇导航数据     that.navbarShow();   //加载banner轮播     that.bannerShow();   },

ajax获取轮播数据

bannerShow: function (success) {         var that = this;     ajax.request({               method: 'GET',               url: 'home/banners?key=' + utils.key,               success: data => {         that.setData({                       banners: data.result         })                 console.log(data.result)       }     })   },

首页分类导航实现

home.js

<!-- 分类导航 -->  <view>   <view class="navy">     <block wx:for-items="{{menus}}" wx:key="name">       <view class="nav-item"  data-type="{{item.menuName}}" data-typeid="{{item.id}}">         <image src="{{item.imgUrl}}" class="nav-image" />         <text>{{item.menuName}}</text>       </view>     </block>   </view>  </view>

home.wxss

/*=================分类导航====================*/ .navs {       display: flex;      justify-content: left;      flex-direction: row;       flex-wrap: wrap;   } .nav-item {       width: 25%;       display: flex;       align-items: center;       flex-direction: column;      /* padding: 20rpx; */     padding-top: 20rpx; } .nav-item .nav-image {       width: 80rpx;       height: 80rpx;  /* border-radius: 50%;设置边界圆角 */ } .nav-item text {       padding-top: 20rpx;       font-size: 25rpx; }

home.js

页面初始化分类导航数据

data: {     navbars:null,//导航数据     currentTab: 0,     banners:null, //轮播数据     indicatorDots: true, //是否显示面板指示点     autoplay: true, //是否自动切换     interval: 3000, //自动切换时间间隔,3s     duration: 1000, //  滑动动画时长1s     menus: null, //分类导航数据},

页面初始化加载分类导航数据函数

/**    * 生命周期函数--监听页面加载    */   onLoad: function (options) {         var that = this;    //加载navbar导航条     that.navbarShow();    //加载banner轮播     that.bannerShow();    //加载menu分类导航菜单     that.menuShow();   },

ajax获取分类导航数据

menuShow: function (success) {         var that = this;     ajax.request({           method: 'GET',           url: 'home/menus?key='+ utils.key,           success: data => {         that.setData({                       menus: data.result         })                 console.log(data.result)       }     })   },

首页新品特卖模块实现

home.js

<view class="separate"></view> <view class="cate-container">      <view class="category-title">       <text class="name">新品特卖</text>       <view class="line_flag"></view>       <block wx:for-items="{{brands}}" wx:key="id">         <navigator url="/pages/detail/detail">         <image class="head-img" src="{{item.imgUrl}}" mode="widthFix"></image>         </navigator>         <text class="brand-name">{{item.name}}</text>          <view class='pas'>         <image class="activity-logo" src="../../images/activity_logo.png" mode="widthFix"></image>         {{item.remark}}        </view>       </block>      </view>        </view>

home.wxss

/*=================新品特卖 样式====================*/   .category-title {       display: flex;       flex-direction: column;       margin-top: 20rpx;       margin-bottom: 0rpx;       padding: 0px 10px;    }   .category-title .title{       font-size: 14px;       font-weight:900; }   .category-title .line_name{       font-size: 10px;       color: #98989f;       display: flex;       justify-content:space-between;  }  /* 分割线 */  .separate {       height: 15rpx;       background-color: #f2f2f2; } .category-title {       display: flex;       flex-direction: column;       margin-top: 25rpx;       margin-bottom: 0rpx; } .category-title .name {       font-size: 40rpx;       text-align: center;       margin: 10rpx auto; } .line_flag {       width: 80rpx;       height: 1rpx;       display: inline-block;       margin: 20rpx auto;       background-color: gainsboro;       text-align: center; } .line {       width: 100%;       height: 2rpx;       display: inline-block;       margin: 20rpx 0rpx;       background-color: gainsboro;       text-align: center; } .head-img {       width: 100%; } .brand-name{       font-weight: 600;      font-size: 32rpx; }   .activity-logo {       width:35rpx;       height:35rpx;       margin-right: 10rpx;  /* position: absolute; */  } .pms{       font-size: 28rpx;       margin-bottom: 20rpx;       display: flex;      justify-content: left;      flex-direction: row;  color: #5771a8; }

home.js

页面初始化新品特卖数据

data: {     navbars:null,//导航数据     currentTab: 0,     banners:null, //轮播数据     indicatorDots: true, //是否显示面板指示点     autoplay: true, //是否自动切换     interval: 3000, //自动切换时间间隔,3s     duration: 1000, //  滑动动画时长1s     menus: null, //分类导航数据     brands: null, //新品特卖数据},

页面初始化加载新品特卖数据函数

/**    * 生命周期函数--监听页面加载    */   onLoad: function (options) {         var that = this;    //加载navbar导航条     that.navbarShow();    //加载banner轮播     that.bannerShow();    //加载menu分类导航菜单     that.menuShow();   //加载新品特卖     that.brandShow();   },

ajax获取新品特卖数据

brandShow: function (success) {     var that = this;     ajax.request({               method: 'GET',               url: 'activity/brands?  key='+utils.key+'&type=temai&page=1&size=5',               success: data => {         that.setData({                       brands: data.result.list         })                     console.log("brands：" + data.result.list)       }     })   },