当前位置:网站首页>小程序开发的部分功能
小程序开发的部分功能
2022-07-03 01:17:00 【Blizzard前端】
项目前的准备
关闭自动热重载警告:详情->本地设置->关闭“启用代码自动热重载”
新建项目并梳理项目结构
配置导航栏效果
全局app.json->window
配置tabBar
在全局app.json中和window平级创建一个tabBar节点
实现轮播图效果
接口地址
①获取轮播图数据列表的接口
②在子页面中定义获取轮播图数据的方法
③在onload中调用这个方法-通过this实例页面一加载就调用
④通过setDate()将数据赋值data里面的数组
data: {
//存放轮播图数据的列表
swiperList:[]
},
//获取轮播图数据的方法
getSwiperLsit()
{
wx.request({
url:'https://www.escook.cn/slides',
method:'GET',
success:(res)=>{
console.log(res);
this.setData({
swiperList:res.data
})
}
})
},
⑤渲染轮播图的效果
<swiper indicator-dots circular>
<swiper-item wx:for="{
{swiperList}}" wx:key="id">
<image src="{
{item.image}}">
</image>
</swiper-item>
</swiper>
上拉触底功能
步骤一-定义随机获取颜色的方法
data: {
colorList:[]
},
getColors(){
wx.request({
url: 'https://www.escook.cn/api/color',
method:'get',
success:({
data:res})=>{
console.log(res)
// 数据拼接
this.setData({
colorList:[...this.data.colorList,...res.data]
})
}
})
},
步骤二-在页面加载时获得初始数据
/** * 生命周期函数--监听页面加载 */
onLoad(options) {
this.getColors()
},
步骤三-渲染UI结构并美化页面效果
<!--pages/contact/contact.wxml-->
<view wx:for="{
{colorList}}" wx:key="index" class="num-item" style="background-color: rgba({
{
item}});">{
{item}}</view>
页面要足够大可以下拉刷新
步骤四-上拉触底时获取随机颜色
//页面上拉触底事件的处理函数
onReachBottom:function(){
//调用获取随机颜色的方法
this.getColors()
}
上拉刷新,数据一次性获取10条,由10条变成20条
步骤五-添加loading提示效果

getColors(){
//展示loading效果
wx.showLoading({
title: '数据加载中。。。',
})
wx.request({
url: 'https://www.escook.cn/api/color',
method:'get',
success:({
data:res})=>{
console.log(res)
// 数据拼接
this.setData({
colorList:[...this.data.colorList,...res.data]
})
},
//手动关闭数据加载
complete:()=>{
wx.hideLoading()
}
})
},
步骤六-对上拉触底进行节流处理

data: {
colorList:[],
isloading:false
},
getColors(){
this.setData({
isloading:true
})
//展示loading效果
wx.showLoading({
title: '数据加载中。。。',
})
wx.request({
url: 'https://www.escook.cn/api/color',
method:'get',
success:({
data:res})=>{
console.log(res)
// 数据拼接
this.setData({
colorList:[...this.data.colorList,...res.data]
})
},
//手动关闭数据加载
complete:()=>{
wx.hideLoading()
this.setData({
isloading:false
})
}
})
},
onReachBottom() {
if(this.data.isloading) return
this.getColors()
},
边栏推荐
- [untitled]
- STM32 - switch of relay control lamp
- Mathematical knowledge: divisible number inclusion exclusion principle
- CF1617B Madoka and the Elegant Gift、CF1654C Alice and the Cake、 CF1696C Fishingprince Plays With Arr
- Learn the five skills you need to master in cloud computing application development
- What are the trading forms of spot gold and what are the profitable advantages?
- Concise analysis of redis source code 11 - Main IO threads and redis 6.0 multi IO threads
- String splicing function of MySQL
- Scheme and practice of cold and hot separation of massive data
- 网络安全-NAT网络地址转换
猜你喜欢
![[my advanced journey of OpenGL learning] collation of Euler angle, rotation order, rotation matrix, quaternion and other knowledge](/img/ed/23331d939c9338760e426d368bfd5f.png)
[my advanced journey of OpenGL learning] collation of Euler angle, rotation order, rotation matrix, quaternion and other knowledge

Main features of transport layer TCP and TCP connection

【数据挖掘】任务6:DBSCAN聚类
![[data mining] task 3: decision tree classification](/img/9a/1cb2a8a90f16e7bfa9b48e516a966c.png)
[data mining] task 3: decision tree classification

Arduino dy-sv17f automatic voice broadcast

C#应用程序界面开发基础——窗体控制(3)——文件类控件

Everything文件搜索工具

Meituan dynamic thread pool practice ideas, open source
![[understanding of opportunity -36]: Guiguzi - flying clamp chapter - prevention against killing and bait](/img/c6/9aee30cb935b203c7c62b12c822085.jpg)
[understanding of opportunity -36]: Guiguzi - flying clamp chapter - prevention against killing and bait

Androd gradle's substitution of its use module dependency
随机推荐
网络安全-信息收集
网络安全-木马
网络安全-扫描
Using tensorboard to visualize the model, data and training process
[shutter] animation animation (animatedwidget animation use process | create animation controller | create animation | create animatedwidget animation component | animation operation)
网络安全-openvas
View of MySQL
What operations need attention in the spot gold investment market?
MySQL - database query - condition query
Leetcode skimming questions_ Sum of two numbers II - enter an ordered array
网络安全-中间人攻击
JUC thread scheduling
Mathematical knowledge: Nim game game theory
一比特苦逼程序員的找工作經曆
英语常用词汇
[principles of multithreading and high concurrency: 2. Solutions to cache consistency]
mysql
STM32 - introduction of external interrupts exti and NVIC
Virtual list
Take you ten days to easily complete the go micro service series (II)