微信小程序开发,诗词鉴赏app,朝代分类实现(四)
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- 微信小程序开发,诗词鉴赏app(一): https://blog.csdn.net/jky_yihuangxing/article/details/143501681
- 微信小程序开发,诗词鉴赏app,诗词推荐实现(二):https://blog.csdn.net/jky_yihuangxing/article/details/143562367
- 微信小程序开发,诗词鉴赏app,诗词搜索实现(三):https://blog.csdn.net/jky_yihuangxing/article/details/143566194
- 微信小程序开发,诗词鉴赏app,朝代分类实现(四):https://blog.csdn.net/jky_yihuangxing/article/details/143672951
1. 涉及到的知识点
- 使用
scroll-view实现左右滑动 - 使用
wx.request获取服务端数据
2. 官网文档教程
-
scroll-view :https://developers.weixin.qq.com/miniprogram/dev/component/scroll-view.html
-
wx.request :https://developers.weixin.qq.com/miniprogram/dev/api/network/request/wx.request.html
3. 代码实现过程
- 编写poetry.wxml布局文件
<!--pages/poetry/poetry.wxml-->
<navigation-bar title="诗词库" back="{{false}}" color="#ffffff" background="#e6142c"></navigation-bar>
<!-- 朝代分类 -->
<scroll-view class="scroll-x" scroll-x enable-flex style="flex-direction: row;">
<block wx:for="{{categoryList}}" wx:key="*this">
<text bind:tap="onItemClickHandle" data-position="{{index}}" class="{{currentIndex===index? 'activites' : 'normal'}}">{{item.category_name}}</text>
</block>
</scroll-view>
<scroll-view class="scrollarea" scroll-y type="list">
<block wx:for="{{poetryList}}" wx:key="{{item.poetry_id}}">
<view bind:tap="onItemHandle" data-item="{{item}}" >
<poetry-item
avatarUrl="{{item.author_avatar}}"
title ="{{item.title}}"
author ="{{item.dynasty}} : {{item.author}}"
content ="{{item.content}}"
>
</poetry-item>
</view>
</block>
</scroll-view>
- 编写poetry.wxss样式文件
/* pages/poetry/poetry.wxss */
page {
height: 100vh;
display: flex;
flex-direction: column;
}
.scrollarea {
flex: 1;
overflow-y: hidden;
}
.scroll-x {
width: 100%;
white-space: nowrap;
height: 100rpx;
flex-direction: row;
box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
}
.scroll-x .activites {
line-height: 100rpx;
margin-left: 20rpx;
margin-right: 20rpx;
padding-bottom: 6rpx;
border-bottom: 6rpx solid #e6142c;
color: #e6142c;
}
.scroll-x .normal {
line-height: 80rpx;
margin-left: 20rpx;
margin-right: 20rpx;
padding-bottom: 6rpx;
border-bottom: 6rpx solid #ffffff;
color: #999999;
font-size: 30rpx;
}
- 编写poetry.js 逻辑实现
/**
* 获取对应朝代的诗词
*/
async queryPoetryListByCategory(dynasty) {
const res = await http.get("/queryPoetryListByCategory",
{ dynasty: dynasty })
this.setData({
poetryList: res.data.data.list
})
},
/**
* 获取朝代分类
*/
async queryCategoryList() {
const res = await http.get("/queryCategoryList")
this.setData({
categoryList: res.data.data.list
})
},
温馨提示:http.get封装的wx.request请求 ,这里不展开细说,因为这里还涉及到服务端接口API的实现
// pages/poetry/poetry.js
//导入网络模块
import http from '../../net/http'
Page({
/**
* 页面的初始数据
*/
data: {
currentIndex: 0,
categoryList: [],
poetryList: [],
category: ""
},
/**
* 生命周期函数--监听页面加载
*/
onLoad(options) {
//获取朝代分类
this.queryCategoryList()
//获取对应朝代的诗词
this.queryPoetryListByCategory(this.data.category)
},
/**
* 获取朝代分类
*/
async queryCategoryList() {
const res = await http.get("/queryCategoryList")
this.setData({
categoryList: res.data.data.list
})
},
/**
* 获取对应朝代的诗词
*/
async queryPoetryListByCategory(dynasty) {
const res = await http.get("/queryPoetryListByCategory",
{ dynasty: dynasty })
this.setData({
poetryList: res.data.data.list
})
},
//分类点击事件
onItemClickHandle(options) {
const index = options.currentTarget.dataset.position;
console.log(this.data.categoryList[index].category_name)
this.setData({
currentIndex: index,
//设置当前点击的是哪个朝代
category: this.data.categoryList[index].category_name == "全部" ? '' : this.data.categoryList[index].category_name
})
//调用获取朝代诗词
this.queryPoetryListByCategory(this.data.category)
},
//跳转到详情页
onItemHandle(options) {
const itemStr = JSON.stringify(options.currentTarget.dataset.item)
wx.navigateTo({
url: '/pages/details/details?itemStr='+itemStr
})
},
/**
* 生命周期函数--监听页面初次渲染完成
*/
onReady() {
},
/**
* 生命周期函数--监听页面显示
*/
onShow() {
},
/**
* 生命周期函数--监听页面隐藏
*/
onHide() {
},
/**
* 生命周期函数--监听页面卸载
*/
onUnload() {
},
/**
* 页面相关事件处理函数--监听用户下拉动作
*/
onPullDownRefresh() {
},
/**
* 页面上拉触底事件的处理函数
*/
onReachBottom() {
},
/**
* 用户点击右上角分享
*/
onShareAppMessage() {
}
})
4. 运行效果图

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- Android新闻资讯app实战:https://www.bilibili.com/video/BV1CA1vYoEad/?vd_source=984bb03f768809c7d33f20179343d8c8
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