微信小程序实战--集阅读与电影于一体的小程序项目（一）
1.首页欢迎界面
项目目录结构
新建项目ReaderMovie，然后新建文件，结构如下
welcome.wxml
<view class=\'container\'>
<image class=\'user-avatar\' src="/images/avatar/4.png"></image>
<text class=\'user-name\'><text style=\'color:blue\'>Hello</text>,八月</text>
<view class=\'moto-container\'>
<text class=\'moto\'>开启小程序之旅</text>
</view>
</view>
welcome.wxss
.container{
display:flex; /*弹性模型*/
flex-direction:column; /*垂直方向 列 排布*/
align-items:center; /*居中*/
}
.user-avatar{
width:150rpx;
height:150rpx;
margin-top:160rpx;
}
.user-name{
margin-top:150rpx;
font-size:32rpx;
font-weight:bold;
}
.moto-container{
margin-top:200rpx;
border:1px solid #405f80;
width:200rpx;
height:80rpx;
border-radius:5rpx;
text-align:center;
}
.moto{
font-size:22rpx;
font-weight:bold;
line-height:80rpx;
color:#405f80;
}
page{
height:100%;
background:#b3d4db;
}
welcome.js
Page(
{}
)
welcome.json
设置导航条的颜色
{
"navigationBarBackgroundColor": "#b3d4db"
}
app.json
配置目录和背景颜色
{
"pages": [
"pages/welcome/welcome"
],
"window": {
"navigationBarBackgroundColor": "#405f80"
}
}
app.wxss
设置全局的字体格式
text{
font-family:MicroSoft yahei;
}
效果预览
2.轮播图播放
新建目录posts
post.wxml
<view>
<swiper indicator-dots=\'true\' autoplay=\'true\' interval=\'2000\'>
<swiper-item>
<image src=\'/images/post/bl.png\'></image>
</swiper-item>
<swiper-item><image src=\'/images/post/xiaolong.jpg\' ></image></swiper-item>
<swiper-item><image src=\'/images/post/vr.png\' ></image></swiper-item>
</swiper>
</view>
post.wxss
swiper{
width:100%;
height:500rpx;
}
3.新闻列表
导航栏背景色和文字
post.json
{
"navigationBarBackgroundColor": "#405f80",
"navigationBarTitleText":"新闻资讯"
}
效果
新闻列表
post.wxml
<view>
<swiper indicator-dots=\'true\' autoplay=\'true\' interval=\'2000\'>
<swiper-item>
<image src=\'/images/post/bl.png\'></image>
</swiper-item>
<swiper-item><image src=\'/images/post/xiaolong.jpg\' ></image></swiper-item>
<swiper-item><image src=\'/images/post/vr.png\' ></image></swiper-item>
</swiper>
<view class=\'post-container\'>
<view class=\'post-author-date\'>
<image class=\'post-author\' src="/images/avatar/1.png"></image>
<text class=\'post-date\'>2018/8/16</text>
</view>
<text class=\'post-title\'>荷塘月色</text>
<image class=\'post-image\' src=\'/images/post/crab.png\'></image>
<text class=\'post-content\'>这几天心里颇不宁静。今晚在院子里坐着乘凉，忽然想起日日走过的荷塘，在这满月的光里，总该另有一番样子吧。</text>
<view class=\'post-like\'>
<image class=\'post-like-image\' src=\'../../images/icon/chat.png\'></image>
<text class=\'post-like-font\'>100</text>
<image class=\'post-like-image\' src=\'../../images/icon/view.png\'></image>
<text class=\'post-like-font\'>65</text>
</view>
</view>
</view>
post.wxss
swiper{
width:100%;
height:500rpx;
}
.post-container{
display: flex;
flex-direction: column;
margin-top:20rpx;
margin-bottom: 40rpx;
background-color: #fff;
border-top:1px solid #ededed;
border-bottom: 1px solid #ededed;
padding-bottom: 5px;
}
.post-author-date{
margin:10rpx 0 20rpx 10rpx
}
.post-author{
width: 60rpx;
height: 60rpx;
vertical-align: middle;
}
.post-date{
margin-left: 20rpx;
vertical-align: middle;
margin-bottom: 5px;
font-size: 26rpx;
}
.post-title{
font-size: 34rpx;
font-weight: 600;
color:#333;
margin-bottom: 10px;
margin-left: 10px;
}
.post-image{
margin-left: 16px;
width: 100%;
height: 340rpx;
margin:auto 0;
margin-bottom: 15px;
}
.post-content{
color:#666;
font-size: 28rpx;
margin-bottom:20rpx;
margin-left: 20rpx;
letter-spacing: 2rpx;
line-height: 40rpx;
}
.post-like{
font-size: 13px;
flex-direction: row;
line-height: 16px;
margin-left: 10px;
}
.post-like-image{
height: 16px;
width:16px;
margin-right: 8px;
vertical-align: middle;
}
.post-like-font{
vertical-align: middle;
margin-right: 20px;
}
效果
4.数据绑定
真正的数据肯定不可能像上面那样写在wxml文件里面，而是从服务器加载的数据，下面模拟从服务器加载数据。
post.wxml
<view class=\'post-container\'>
<view class=\'post-author-date\'>
<image class=\'post-author\' src="{{author_img}}"></image>
<text class=\'post-date\'>{{date}}</text>
</view>
<text class=\'post-title\'>{{title}}</text>
<image class=\'post-image\' src=\'{{post_img}}\'></image>
<text class=\'post-content\'>{{content}}</text>
<view class=\'post-like\'>
<image class=\'post-like-image\' src=\'../../images/icon/chat.png\'></image>
<text class=\'post-like-font\'>{{collect_num}}</text>
<image class=\'post-like-image\' src=\'../../images/icon/view.png\'></image>
<text class=\'post-like-font\'>{{view_num}}</text>
</view>
</view>
post.js
Page({
/**
* 页面的初始数据
*/
data: {
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
var post_content1={
date:"2018/8/16",
title:"荷塘月色",
post_img: \'/images/post/crab.png\',
content:\'这几天心里颇不宁静。今晚在院子里坐着乘凉，忽然想起日日走过的荷塘，在这满月的光里，总该另有一番样子吧。\',
view_num:"100",
collect_num:\'50\',
author_img:\'/images/avatar/1.png\'
}
this.setData(post_content1);
},
})
5.wx-for循环新闻列表
假设有两篇新闻，通过wx:for列表循环展示新闻信息。
post.js
Page({
/**
* 页面的初始数据
*/
data: {
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
var posts_content = [
{
date: "2018/8/16",
title: "荷塘月色",
post_img: \'/images/post/crab.png\',
content: \'这几天心里颇不宁静。今晚在院子里坐着乘凉，忽然想起日日走过的荷塘，在这满月的光里，总该另有一番样子吧。\',
view_num: "100",
collect_num: \'50\',
author_img: \'/images/avatar/1.png\'
},
{
date: "2018/7/15",
title: "背影",
post_img: \'/images/post/bl.png\',
content: \'我与父亲不相见已二年余了，我最不能忘记的是他的背影 。那年冬天，祖母死了，父憨穿封费莩渡凤杀脯辑亲的差使也交卸了，正是祸不单行的日子\',
view_num: "120",
collect_num: \'150\',
author_img: \'/images/avatar/2.png\'
}
]
this.setData({
posts_key: posts_content
});
},
})
post.wxml
<view>
<swiper indicator-dots=\'true\' autoplay=\'true\' interval=\'2000\'>
<swiper-item>
<image src=\'/images/post/bl.png\'></image>
</swiper-item>
<swiper-item><image src=\'/images/post/xiaolong.jpg\' ></image></swiper-item>
<swiper-item><image src=\'/images/post/vr.png\' ></image></swiper-item>
</swiper>
<block wx:for="{{posts_key}}" wx:for-item="item">
<view class=\'post-container\'>
<view class=\'post-author-date\'>
<image class=\'post-author\' src="{{item.author_img}}"></image>
<text class=\'post-date\'>{{item.date}}</text>
</view>
<text class=\'post-title\'>{{item.title}}</text>
<image class=\'post-image\' src=\'{{item.post_img}}\'></image>
<text class=\'post-content\'>{{item.content}}</text>
<view class=\'post-like\'>
<image class=\'post-like-image\' src=\'../../images/icon/chat.png\'></image>
<text class=\'post-like-font\'>{{item.collect_num}}</text>
<image class=\'post-like-image\' src=\'../../images/icon/view.png\'></image>
<text class=\'post-like-font\'>{{item.view_num}}</text>
</view>
</view>
</block>
</view>
6.小程序事件机制
实现从首页跳转到新闻列表页
welcome.wxml绑定一个事件
<view class=\'container\'>
<image class=\'user-avatar\' src="/images/avatar/4.png"></image>
<text class=\'user-name\'><text style=\'color:blue\'>Hello</text>,八月</text>
<view class=\'moto-container\' bindtap=\'onTap\'>
<text class=\'moto\'>开启小程序之旅</text>
</view>
</view>
welcome.js
Page({
onTap:function(){
wx.redirectTo({
url: \'../posts/post\',
})
}
}
)
7.小程序的模块化
将业务中的数据分离到单独的数据文件
创建data文件夹，再创建postsdata.js
post.wxml
修改地方：wx:for="{{postlist}}"，还有一些变量
<block wx:for="{{postlist}}" wx:for-item="item">
<view class=\'post-container\'>
<view class=\'post-author-date\'>
<image class=\'post-author\' src="{{item.avatar}}"></image>
<text class=\'post-date\'>{{item.date}}</text>
</view>
<text class=\'post-title\'>{{item.title}}</text>
<image class=\'post-image\' src=\'{{item.imgSrc}}\'></image>
<text class=\'post-content\'>{{item.content}}</text>
<view class=\'post-like\'>
<image class=\'post-like-image\' src=\'../../images/icon/chat.png\'></image>
<text class=\'post-like-font\'>{{item.collection}}</text>
<image class=\'post-like-image\' src=\'../../images/icon/view.png\'></image>
<text class=\'post-like-font\'>{{item.reading}}</text>
</view>
</view>
</block>
postsdata.js
把文章分离出来。通过 module.exports 对外暴露接口。
var local_database = [{
date: "2018/8/16",
title: "荷塘月色",
imgSrc: \'/images/post/crab.png\',
content: \'这几天心里颇不宁静。今晚在院子里坐着乘凉，忽然想起日日走过的荷塘，在这满月的光里，总该另有一番样子吧。\',
reading: "100",
collection: \'50\',
avatar: \'/images/avatar/1.png\'
},
{
date: "2018/7/15",
title: "背影",
imgSrc: \'/images/post/bl.png\',
content: \'我与父亲不相见已二年余了，我最不能忘记的是他的背影 。那年冬天，祖母死了，父憨穿封费莩渡凤杀脯辑亲的差使也交卸了，正是祸不单行的日子\',
reading: "120",
collection: \'150\',
avatar: \'/images/avatar/2.png\'
},
{
date: "2018/6/2",
title: "济南的冬天",
imgSrc: \'/images/post/vr.png\',
content: \'对于一个在北平住惯的人，像我，冬天要是不刮风，便觉得是奇迹；济南的冬天是没有风声的。\',
reading: "80",
collection: \'50\',
avatar: \'/images/avatar/3.png\'
},
{
date: "2018/5/1",
title: "江南之雨",
imgSrc: \'/images/post/cat.png\',
content: \'江南之春雨如此缠绵，然煽情，如此醉，影青青之烟雨巷，雨丝风，润之使人动心如此\',
reading: "80",
collection: \'50\',
avatar: \'/images/avatar/3.png\'
},
{
date: "2018/4/6",
title: "忆江南",
imgSrc: \'/images/post/xiaolong.jpg\',
content: \'昨晚和阿浩谈起诸多童年记忆，不知不觉眼前浮现一片油菜花海，黄灿灿，一眼望不到头，连空气都带着甜香。\',
reading: "80",
collection: \'50\',
avatar: \'/images/avatar/4.png\'
},
]
module.exports = {
postlist:local_database
}
post.js使用 require(path) 将代码引入
var postsData = require(\'../../data/posts-data.js\')
Page({
data: {
postlist: postsData.postlist
},
onLoad: function(options) {
// this.setData({
// posts_key: postsData.postlist
// });
}
})
8.template模板的使用
在posts目录下创建模板目录post-item目录，然后分别创建post-item-template.wxml和post-item-template.wxss
post-item-template.wxml创建模板
<template name="postItem">
<view class=\'post-container\'>
<view class=\'post-author-date\'>
<image class=\'post-author\' src="{{avatar}}"></image>
<text class=\'post-date\'>{{item.date}}</text>
</view>
<text class=\'post-title\'>{{title}}</text>
<image class=\'post-image\' src=\'{{imgSrc}}\'></image>
<text class=\'post-content\'>{{content}}</text>
<view class=\'post-like\'>
<image class=\'post-like-image\' src=\'../../images/icon/chat.png\'></image>
<text class=\'post-like-font\'>{{collection}}</text>
<image class=\'post-like-image\' src=\'../../images/icon/view.png\'></image>
<text class=\'post-like-font\'>{{reading}}</text>
</view>
</view>
</template>
post.wxml使用模板
<import src=\'post-item/post-item-template.wxml\' />
<view>
<swiper indicator-dots=\'true\' autoplay=\'true\' interval=\'2000\'>
<swiper-item>
<image src=\'/images/post/bl.png\'></image>
</swiper-item>
<swiper-item>
<image src=\'/images/post/xiaolong.jpg\'></image>
</swiper-item>
<swiper-item>
<image src=\'/images/post/vr.png\'></image>
</swiper-item>
</swiper>
<block wx:for="{{postlist}}" wx:for-item="item">
<template is="postItem" data="{{...item}}" />
</block>
</view>
post-item-template.wxss创建模板
.post-container{
display: flex;
flex-direction: column;
margin-top:20rpx;
margin-bottom: 40rpx;
background-color: #fff;
border-top:1px solid #ededed;
border-bottom: 1px solid #ededed;
padding-bottom: 5px;
}
.post-author-date{
margin:10rpx 0 20rpx 10rpx
}
.post-author{
width: 60rpx;
height: 60rpx;
vertical-align: middle;
}
.post-date{
margin-left: 20rpx;
vertical-align: middle;
margin-bottom: 5px;
font-size: 26rpx;
}
.post-title{
font-size: 34rpx;
font-weight: 600;
color:#333;
margin-bottom: 10px;
margin-left: 10px;
}
.post-image{
margin-left: 16px;
width: 100%;
height: 340rpx;
margin:auto 0;
margin-bottom: 15px;
}
.post-content{
color:#666;
font-size: 28rpx;
margin-bottom:20rpx;
margin-left: 20rpx;
letter-spacing: 2rpx;
line-height: 40rpx;
}
.post-like{
font-size: 13px;
flex-direction: row;
line-height: 16px;
margin-left: 10px;
}
.post-like-image{
height: 16px;
width:16px;
margin-right: 8px;
vertical-align: middle;
}
.post-like-font{
vertical-align: middle;
margin-right: 20px;
}
post.wxss使用模板
@import "post-item/post-item-template.wxss"
swiper{
width:100%;
height:500rpx;
}
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