上一篇：微信小程序微商城（一）：https框架搭建并实现导航功能
大家在看本文前一定要先阅读上一篇文章
前言
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) } }) },