小程序入门学习（六）之本地生活案例

效果图如下：

关键代码如下：

app.json

{
  "pages": [
    "pages/home/home",
    "pages/message/message",
    "pages/contact/contact"
  ],
  "window": {
    "backgroundTextStyle": "light",
    "navigationBarBackgroundColor": "#2b4b6b",
    "navigationBarTitleText": "本地生活",
    "navigationBarTextStyle": "white"
  },
  "tabBar": {
    "list": [
      {
        "pagePath": "pages/home/home",
        "text": "首页",
        "iconPath": "/images/tabs/home.png",
        "selectedIconPath": "/images/tabs/home-active.png"
      },
      {
        "pagePath": "pages/message/message",
        "text": "消息",
        "iconPath": "/images/tabs/message.png",
        "selectedIconPath": "/images/tabs/message-active.png"
      },
      {
        "pagePath": "pages/contact/contact",
        "text": "联系我们",
        "iconPath": "/images/tabs/contact.png",
        "selectedIconPath": "/images/tabs/contact-active.png"
      }
    ]
  },
  "style": "v2",
  "sitemapLocation": "sitemap.json"
}

home.js

// pages/home/home.js
Page({

  /**
   * 页面的初始数据
   */
  data: {
    // 存放轮播图数据的列表
    swiperList: [],
    // 存放九宫格数据的列表
    gridList: []
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.getSwiperList()
    this.getGridList()
  },

  // 获取轮播图数据的方法
  getSwiperList() {
    wx.request({
      url: 'https://applet-base-api-t.itheima.net/slides',
      method: 'GET',
      success: (res) => {
        this.setData({
          swiperList: res.data
        })
      }
    })
  },

  // 获取九宫格数据的方法
  getGridList() {
    wx.request({
      url: 'https://applet-base-api-t.itheima.net/categories',
      method: 'GET',
      success: (res) => {
        this.setData({
          gridList: res.data
        })
      }
    })
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})

home.wxml

<!--pages/home/home.wxml-->
<!-- 轮播图区域 -->
<swiper indicator-dots circular>
  <swiper-item wx:for="{{swiperList}}" wx:key="id">
    <image src="{{item.image}}"></image>
  </swiper-item>
</swiper>

<!-- 九宫格区域 -->
<view class="grid-list">
  <view class="grid-item" wx:for="{{gridList}}" wx:key="id">
    <image src="{{item.icon}}"></image>
    <text>{{item.name}}</text>
  </view>
</view>

<!-- 图片区域 -->
<view class="img-box">
  <image src="/images/link-01.png" mode="widthFix"></image>
  <image src="/images/link-02.png" mode="widthFix"></image>
</view>

home.wxss

/* pages/home/home.wxss */
swiper {
  height: 350rpx;
}

swiper image {
  width: 100%;
  height: 100%;
}

.grid-list {
  display: flex;
  flex-wrap: wrap;
  border-left: 1rpx solid #efefef;
  border-top: 1rpx solid #efefef;
}

.grid-item {
  width: 33.33%;
  height: 200rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-right: 1rpx solid #efefef;
  border-bottom: 1rpx solid #efefef;
  box-sizing: border-box;
}

.grid-item image {
  width: 60rpx;
  height: 60rpx;
}

.grid-item text {
  font-size: 24rpx;
  margin-top: 10rpx;
}

.img-box {
  display: flex;
  padding: 20rpx 10rpx;
  justify-content: space-around;
}

.img-box image {
  width: 45%;
}

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