微信小程序基本组件和API已撸完，总归要回到正题的，花了大半天时间做了个精简版的百思不得姐，包括段子，图片，音频，视频，四个模块。这篇就带着大家简述下这个小的APP，源码会放到GitHub上欢迎star。
地址： https://github.com/shuncaigao/BS
项目中我能学到什么？
- tabbar使用方式
- 网络调用真实接口
- loading使用
- scroll-view实现下拉刷新上拉加载
- image组件对图片的处理，
- 音乐和视频组件的使用
- 跳转传值使用
- 等等等。。。。
app.json全局配置文件
{
"pages":[
"pages/word/word",
"pages/image/image",
"pages/voice/voice",
"pages/video/video",
"pages/detail/detail"
],
"tabBar": {
"color": "#a9b7b7",
"selectedColor": "#eb4f38",
"borderStyle": "white",
"backgroundColor": "#ffffff",
"list": [
{
"pagePath": "pages/word/word",
"text": "段子",
"iconPath": "image/wordN.png",
"selectedIconPath": "image/wordS.png"
},
{
"pagePath": "pages/image/image",
"text": "图片",
"iconPath": "image/imageN.png",
"selectedIconPath": "image/imageS.png"
},
{
"pagePath": "pages/voice/voice",
"text": "声音",
"iconPath": "image/voiceN.png",
"selectedIconPath": "image/voiceS.png"
},
{
"pagePath": "pages/video/video",
"text": "视频",
"iconPath": "image/videoN.png",
"selectedIconPath": "image/videoS.png"
}
]
},
"window":{
"backgroundTextStyle":"light",
"navigationBarBackgroundColor": "#eb4f38",
"navigationBarTextStyle":"white"
}
}
这里我们只要配置下程序全局属性，每个页面需要在pags属性中引入，有时候tabbar不显示有可能是因为这个，tabbar底部导航Item分为四个就是list里面的，这里主要配置选中未选中颜色背景色及每个底部选项页面页面引入和图片引入。window 属性主要配置窗体整体的颜色文字颜色和背景色，这里的window属性会被每个页面的window属性给覆盖。
app.wxss
.containsView{
padding: 15rpx 15rpx 15rpx 15rpx;
margin-top: 15rpx;
margin-bottom: 15rpx;
background-color: white;
}
.topContainsView{
display: flex;
flex-direction: row;
align-items: center;
margin-bottom: 18rpx;
}
.profileImage{
width: 60rpx;
height: 60rpx;
border-radius: 30rpx;
}
.topRightView{
margin-left: 15rpx;
display: flex;
flex-direction: column;
}
.topRightName{
font-size: 18rpx;
}
.topRightTime{
font-size: 14rpx;
color: #b8b2b2;
margin-top: 10rpx;
}
.bottomView{
display: flex;
flex-direction: row;
justify-content: space-between;
align-items: center;
}
.bottomItemView{
display: flex;
flex-direction: row;
align-items: center;
justify-content: center;
margin-top: 18rpx;
padding-left: 10rpx;
padding-right: 10rpx;
}
.bottomItemImage{
width: 45rpx;
height: 45rpx;
}
.bottomItemText{
font-size: 15rpx;
color: #b8b2b2;
margin-left: 10rpx;
margin-top: 8rpx;
}
.divLine{
background: #f3f3f3;
width: 100%;
height: 15rpx;
}
app.wxss我将四个模块分为三个部分 头部，内容区域， 底部因为每个页面头部，底部样式都一样而中间部分不一样所以我把1，3抽到全局中，注释比较清晰
段子模块
word.wxml
<loading hidden="{{loadingHidden}}">正在加载...</loading>
<scroll-view scroll-y="true" bindscrolltoupper="bindscrolltoupper" bindscrolltolower="bindscrolltolower" style="height: 100%">
<block wx:for-items="{{list}}">
<view class="divLine"></view>
<view class="containsView">
<view class="topContainsView">
<image class="profileImage" src="{{item.profile_image}}" />
<view class="topRightView">
<text class="topRightName">{{item.name}}</text>
<text class="topRightTime">{{item.passtime}}</text>
</view>
</view>
<text class="centerContent">{{item.text}}</text>
<view class="bottomView">
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/ding.png" />
<text class="bottomItemText">{{item.ding}}</text>
</view>
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/cai.png" />
<text class="bottomItemText">{{item.cai}}</text>
</view>
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/share.png" />
<text class="bottomItemText">{{item.repost}}</text>
</view>
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/comment.png" />
<text class="bottomItemText">{{item.comment}}</text>
</view>
</view>
</view>
</block>
</scroll-view>
外层我们用scroll-view包裹以实现加载更多和上拉刷新 bindscrolltoupper=”bindscrolltoupper” 这个属性当滑动到顶部会调用这个方法bindscrolltolower=”bindscrolltolower”这个则滑到底部会调用，起始这里还可以将头部和底部布局抽出来通过引入方式使用，就不用四个页面都写了，自己可以弄下
word.js
Page({
data: {
list: [],
maxtime: '',
loadingHidden: false
},
onLoad: function (options) {
this.requestData('newlist');
},
bindscrolltoupper: function () {
},
bindscrolltolower: function () {
console.log('到底部')
this.requestData('list');
},
requestData: function (a) {
var that = this;
console.log(that.data.maxtime)
wx.request({
url: 'http://api.budejie.com/api/api_open.php',
data: {
a: a,
c: 'data',
maxtime: that.data.maxtime,
type: '29',
},
method: 'GET',
success: function (res) {
console.log(res)
console.log('上一页', that.data.list)
that.setData({
list: that.data.list.concat(res.data.list),
loadingHidden: true,
maxtime: res.data.info.maxtime
})
}
})
},
onReady: function () {
},
onShow: function () {
},
onHide: function () {
},
onUnload: function () {
}
})
这里通过requestData方法加载数据，这个方法接受个参数，就是通过这个参数加载最新还是更多，通过maxtime这个参数去加载下一页，上一页的maxtime作为加载下一页的条件， 加载下一页数据我们通过concat方法将数组进行拼接，并改变加载状态loading。word.wxml和word.json中一个设置内容字体大小，一个设置导航条字，就不贴了。
图片模块
image.wxml
<loading hidden="{{loadingHidden}}">正在加载...</loading>
<scroll-view scroll-y="true" bindscrolltolower="bindscrolltolower" style="height: 100%">
<block wx:for-items="{{list}}">
<view class="divLine"></view>
<view class="containsView">
<view class="topContainsView">
<image class="profileImage" src="{{item.profile_image}}" />
<view class="topRightView">
<text class="topRightName">{{item.name}}</text>
<text class="topRightTime">{{item.passtime}}</text>
</view>
</view>
<text style="font-size: 30rpx">{{item.text}}</text>
<view wx:if="{{item.is_gif != 0}}" style="position: relative;">
<image class="centerContent" src="{{item.cdn_img}}" mode="aspectFill" />
</view>
<view data-url="{{item.cdn_img}}" data-height="{{item.height}}" data-width="{{item.width}}"
bindtap="lookBigPicture" wx:elif="{{item.is_gif == 0}}" style="position: relative;">
<image class="centerContent" src="{{item.cdn_img}}" mode="aspectFill" />
<view class="flexView">
<image src="../../image/seeBigPicture.png" style="width: 60rpx; height: 60rpx;" />
<text class="flexText">点击查看全图</text>
</view>
</view>
<view class="bottomView">
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/ding.png" />
<text class="bottomItemText">{{item.ding}}</text>
</view>
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/cai.png" />
<text class="bottomItemText">{{item.cai}}</text>
</view>
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/share.png" />
<text class="bottomItemText">{{item.repost}}</text>
</view>
<view class="bottomItemView">
<image class="bottomItemImage" src="../../image/comment.png" />
<text class="bottomItemText">{{item.comment}}</text>
</view>
</view>
</view>
</block>
</scroll-view>
这里主要看中间部分我们通过是否是gif来区分处理图片，不是gif可以点击查看大图，这里有个view悬浮效果，结合界面和image.wxss看
image.wxss
.centerContent{
margin-top: 20rpx;
width: 100%;
height: 600rpx;
}
.flexView{
display: flex;
justify-content: center;
align-items: center;
width: 100%;
height: 80rpx;
position: absolute;
z-index: 2;
top: 540rpx;
background: #000000;
opacity: 0.6
}
.flexText{
color: white;
font-size: 35rpx;
}
image.js
var detail = '../detail/detail'
Page({
data: {
list: [],
maxtime: '',
loadingHidden: false
},
onLoad: function (options) {
this.requestData('newlist');
},
bindscrolltolower: function () {
console.log('到底部')
this.requestData('list');
},
requestData: function (a) {
var that = this;
wx.request({
url: 'http://api.budejie.com/api/api_open.php',
data: {
a: a,
c: 'data',
maxtime: this.data.maxtime,
type: '10',
},
method: 'GET',
success: function (res) {
console.log(res)
console.log('上一页', that.datalist)
that.setData({
list: that.data.list.concat(res.data.list),
loadingHidden: true,
maxtime: res.data.info.maxtime
})
}
})
},
lookBigPicture: function (e) {
console.log(e);
console.log(e.currentTarget.id)
var url = e.currentTarget.dataset.url;
var height = e.currentTarget.dataset.height;
var width = e.currentTarget.dataset.width;
wx.navigateTo({
url: detail + '?' + 'url=' + url + "&height=" + height + "&width=" + width,
success: function (res) {
console.log(res)
},
fail: function (err) {
console.log(err)
},
})
},
onReady: function () {
},
onShow: function () {
},
onHide: function () {
},
onUnload: function () {
}
})
这里主要看lookBigPicture方法 view data-url=”{{item.cdn_img}}” data-height=”{{item.height}}” data-width=”{{item.width}}”会在逻辑代码中装换成.语法使用 var url = e.currentTarget.dataset.url; 传值调转则向GET发送请求一样按照格式来就行了
音频和视频模块大致雷同看代码去吧！！！
地址： https://github.com/shuncaigao/BS 欢迎star
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