vue+tabbar
如果小程序是一个多 tab 应用(客户端窗口的底部或顶部有 tab 栏可以切换页面),可以通过 tabBar 配置项指定 tab 栏的表现,以及 tab 切换时显示的对应页面。详见小程序 tabbar
1、用法
在 kbone 中定制原生小程序的 tabbar, 需要配置 miniprogram.config
的 generate.tabBar,具体如下:
generate: {
tabBar: {
color: '#000000',
selectedColor: '#07c160',
backgroundColor: '#ffffff',
list: [{
pageName: 'page1',
text: 'page1',
iconPath: path.resolve(__dirname, '../src/img/page1.png'),
selectedIconPath: path.resolve(__dirname, '../src/img/page1-sel.png'),
}, {
pageName: 'page2',
text: 'page2',
iconPath: path.resolve(__dirname, '../src/img/page2.png'),
selectedIconPath: path.resolve(__dirname, '../src/img/page2-sel.png'),
}],
},
},
2、案例
在 kbone-advanced
目录下创建 11-vue-tabbar
目录,本案例在这个目录下完成。
2.1 创建 package.json
cd 11-vue-tabbar
npm init -y
编辑 package.json:
{
"scripts": {
"mp": "cross-env NODE_ENV=production webpack --config build/webpack.mp.config.js --progress --hide-modules"
},
"dependencies": {
"vue": "^2.5.11"
},
"browserslist": [
"> 1%",
"last 2 versions",
"not ie <= 8"
],
"devDependencies": {
"babel-core": "^6.26.0",
"babel-loader": "^7.1.2",
"babel-preset-env": "^1.6.0",
"babel-preset-stage-3": "^6.24.1",
"cross-env": "^5.0.5",
"css-loader": "^0.28.7",
"extract-text-webpack-plugin": "^3.0.2",
"file-loader": "^1.1.4",
"html-webpack-plugin": "^4.0.0-beta.5",
"mini-css-extract-plugin": "^0.5.0",
"optimize-css-assets-webpack-plugin": "^5.0.1",
"stylehacks": "^4.0.3",
"vue-loader": "^15.7.0",
"vue-template-compiler": "^2.6.10",
"webpack": "^4.29.6",
"webpack-cli": "^3.2.3",
"mp-webpack-plugin": "latest"
}
}
安装依赖包:
npm install
2.2 配置 webpack
在 11-vue-tabbar/build 目录下创建 webpack.mp.config.js,内容如下:
const path = require('path')
const webpack = require('webpack')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const { VueLoaderPlugin } = require('vue-loader')
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const TerserPlugin = require('terser-webpack-plugin')
const MpPlugin = require('mp-webpack-plugin') // 用于构建小程序代码的 webpack 插件
const isOptimize = false // 是否压缩业务代码,开发者工具可能无法完美支持业务代码使用到的 es 特性,建议自己做代码压缩
module.exports = {
mode: 'production',
entry: {
page1: path.resolve(__dirname, '../src/page1/main.mp.js'),
page2: path.resolve(__dirname, '../src/page2/main.mp.js'),
page3: path.resolve(__dirname, '../src/page3/main.mp.js'),
},
output: {
path: path.resolve(__dirname, '../dist/mp/common'), // 放到小程序代码目录中的 common 目录下
filename: '[name].js', // 必需字段,不能修改
library: 'createApp', // 必需字段,不能修改
libraryExport: 'default', // 必需字段,不能修改
libraryTarget: 'window', // 必需字段,不能修改
},
target: 'web', // 必需字段,不能修改
optimization: {
runtimeChunk: false, // 必需字段,不能修改
splitChunks: { // 代码分隔配置,不建议修改
chunks: 'all',
minSize: 1000,
maxSize: 0,
minChunks: 1,
maxAsyncRequests: 100,
maxInitialRequests: 100,
automaticNameDelimiter: '~',
name: true,
cacheGroups: {
vendors: {
test: /[\\/]node_modules[\\/]/,
priority: -10
},
default: {
minChunks: 2,
priority: -20,
reuseExistingChunk: true
}
}
},
minimizer: isOptimize ? [
// 压缩CSS
new OptimizeCSSAssetsPlugin({
assetNameRegExp: /\.(css|wxss)$/g,
cssProcessor: require('cssnano'),
cssProcessorPluginOptions: {
preset: ['default', {
discardComments: {
removeAll: true,
},
minifySelectors: false, // 因为 wxss 编译器不支持 .some>:first-child 这样格式的代码,所以暂时禁掉这个
}],
},
canPrint: false
}),
// 压缩 js
new TerserPlugin({
test: /\.js(\?.*)?$/i,
parallel: true,
})
] : [],
},
module: {
rules: [
{
test: /\.css$/,
use: [
MiniCssExtractPlugin.loader,
'css-loader'
],
},
{
test: /\.vue$/,
loader: [
'vue-loader',
],
},
{
test: /\.js$/,
use: [
'babel-loader'
],
exclude: /node_modules/
},
{
test: /\.(png|jpg|gif|svg)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
extensions: ['*', '.js', '.vue', '.json']
},
plugins: [
new webpack.DefinePlugin({
'process.env.isMiniprogram': process.env.isMiniprogram, // 注入环境变量,用于业务代码判断
}),
new MiniCssExtractPlugin({
filename: '[name].wxss',
}),
new VueLoaderPlugin(),
new MpPlugin(require('./miniprogram.config.js')),
],
}
在 11-vue-tabbar/build 目录下创建 miniprogram.config.js,内容如下:
const path = require('path')
module.exports = {
origin: 'https://test.miniprogram.com',
entry: '/',
router: {
page1: ['/a'],
page2: ['/b'],
page3: ['/c'],
},
redirect: {
notFound: 'page1',
accessDenied: 'page1',
},
generate: {
tabBar: {
color: '#000000',
selectedColor: '#07c160',
backgroundColor: '#ffffff',
list: [{
pageName: 'page1',
text: 'page1',
iconPath: path.resolve(__dirname, '../src/img/page1.png'),
selectedIconPath: path.resolve(__dirname, '../src/img/page1-sel.png'),
}, {
pageName: 'page2',
text: 'page2',
iconPath: path.resolve(__dirname, '../src/img/page2.png'),
selectedIconPath: path.resolve(__dirname, '../src/img/page2-sel.png'),
}],
},
autoBuildNpm: 'npm'
},
app: {
navigationBarTitleText: 'vue+tabbar',
},
projectConfig: {
appid: '',
projectname: 'vue+tabbar',
},
packageConfig: {
author: 'wechat-miniprogram',
},
}
2.3 创建 page1 组件
在 /src/
下创建 page1
文件夹,在这个文件夹下创建 main.mp.js
文件,内容如下:
import Vue from 'vue'
import App from './App.vue'
export default function createApp() {
const container = document.createElement('div')
container.id = 'app'
document.body.appendChild(container)
return new Vue({
el: '#app',
render: h => h(App)
})
}
在 /src/page1
下创建 App.vue
文件,内容如下:
<template>
<div class="cnt">
<Header></Header>
<div class="content">page1</div>
<a href="/b">跳转 tabbar 页面</a>
<a href="/c" target="_blank">跳转普通页面</a>
<a href="/d">跳转不存在的页面</a>
<Footer></Footer>
</div>
</template>
<script>
import Header from '../common/Header.vue'
import Footer from '../common/Footer.vue'
export default {
name: 'App',
components: {
Header,
Footer,
},
}
</script>
<style>
.cnt {
margin-top: 20px;
}
a, button, .content {
display: block;
width: 100%;
height: 30px;
line-height: 30px;
text-align: center;
font-size: 20px;
border: 1px solid #ddd;
}
</style>
2.4 创建 page2 组件
在 /src/
下创建 page2
文件夹,在这个文件夹下创建 main.mp.js
文件,内容如下:
import Vue from 'vue'
import App from './App.vue'
export default function createApp() {
const container = document.createElement('div')
container.id = 'app'
document.body.appendChild(container)
return new Vue({
el: '#app',
render: h => h(App)
})
}
在 /src/page2
下创建 App.vue
文件,内容如下:
<template>
<div class="cnt">
<Header></Header>
<div class="content">page2</div>
<a href="/a" target="_blank">跳转 tabbar 页面</a>
<a href="/c" target="_blank">跳转普通页面</a>
<a href="/d">跳转不存在的页面</a>
<Footer></Footer>
</div>
</template>
<script>
import Header from '../common/Header.vue'
import Footer from '../common/Footer.vue'
export default {
name: 'App',
components: {
Header,
Footer,
},
}
</script>
2.5 创建 page3 组件
在 /src/
下创建 page3
文件夹,在这个文件夹下创建 main.mp.js
文件,内容如下:
import Vue from 'vue'
import App from './App.vue'
export default function createApp() {
const container = document.createElement('div')
container.id = 'app'
document.body.appendChild(container)
return new Vue({
el: '#app',
render: h => h(App)
})
}
在 /src/page3
下创建 App.vue
文件,内容如下:
<template>
<div class="cnt">
<Header></Header>
<div class="content">page3</div>
<a href="/a">跳转 tabbar 页面</a>
<a href="/d" target="_blank">跳转不存在的页面</a>
<Footer></Footer>
</div>
</template>
<script>
import Header from '../common/Header.vue'
import Footer from '../common/Footer.vue'
export default {
name: 'App',
components: {
Header,
Footer,
},
}
</script>
<style>
.cnt {
margin-top: 20px;
}
a, .content {
display: block;
width: 100%;
height: 30px;
line-height: 30px;
text-align: center;
font-size: 20px;
border: 1px solid #ddd;
}
</style>
2.6 小程序端效果预览
npm run mp