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vue-webpack + lib-flexible + px2rem实现px自动转化rem

上进的清泉Vb 351

前言:

当前大家对“cssrem”可能比较着重,姐妹们都需要分析一些“cssrem”的相关资讯。那么小编也在网上搜集了一些有关“cssrem””的相关资讯,希望兄弟们能喜欢,我们快快来了解一下吧!

第一,首先需要本地安装node环境和配置。

第二,npm全局安装vue-cli。

第三,通过vue的脚手架初始化本地项目

vue init webapck project-name

这里会自动安装基础依赖,先npn run dev一下,是否运行正常!

第四,安装 npm install postcss-px2rem postcss postcss-loader--save

第五,需要在webpack.base.conf.js文件添加配置

首先引入这三个模块

const webpack = require('webpack')

const px2rem = require('postcss-px2rem')

const postcss = require('postcss')

其次在module中添加如下代码

plugins: [

new webpack.LoaderOptionsPlugin({

// webpack 2.0之后, 此配置不能直接写在自定义配置项中, 必须写在此处

vue: {

postcss: [require('postcss-px2rem')({ remUnit: 37.5, propWhiteList: [] })]

},

})

]

最后在rules中添加postcss-loader支持

{

test: /\.(css|less|scss)(\?.*)?$/,

loader: 'style-loader!css-loader!postcss-loader'

}

完整配置代码如下:

'use strict'

const path = require('path')

const utils = require('./utils')

const config = require('../config')

const vueLoaderConfig = require('./vue-loader.conf')

//这里是新添加的

const webpack = require('webpack')

const px2rem = require('postcss-px2rem')

const postcss = require('postcss')

function resolve (dir) {

return path.join(__dirname, '..', dir)

}

module.exports = {

context: path.resolve(__dirname, '../'),

entry: {

app: './src/main.js'

},

output: {

path: config.build.assetsRoot,

filename: '[name].js',

publicPath: process.env.NODE_ENV === 'production'

? config.build.assetsPublicPath

: config.dev.assetsPublicPath

},

resolve: {

extensions: ['.js', '.vue', '.json'],

alias: {

'vue$': 'vue/dist/vue.esm.js',

'@': resolve('src'),

}

},

module: {

rules: [

{

test: /\.vue$/,

loader: 'vue-loader',

options: vueLoaderConfig

},

{

test: /\.js$/,

loader: 'babel-loader',

include: [resolve('src'), resolve('test'), resolve('node_modules/webpack-dev-server/client')]

},

{

test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,

loader: 'url-loader',

options: {

limit: 10000,

name: utils.assetsPath('img/[name].[hash:7].[ext]')

}

},

{

test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,

loader: 'url-loader',

options: {

limit: 10000,

name: utils.assetsPath('media/[name].[hash:7].[ext]')

}

},

{

test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,

loader: 'url-loader',

options: {

limit: 10000,

name: utils.assetsPath('fonts/[name].[hash:7].[ext]')

}

},

//这里是新添加的

{

test: /\.(css|less|scss)(\?.*)?$/,

loader: 'style-loader!css-loader!postcss-loader'

}

]

},

//这里是新添加的

plugins: [

new webpack.LoaderOptionsPlugin({

// webpack 2.0之后, 此配置不能直接写在自定义配置项中, 必须写在此处

vue: {

//这里默认remUnit:是75,这里用37.5,一般设计搞是按ios6设计的。

postcss: [require('postcss-px2rem')({ remUnit: 37.5, propWhiteList: [] })]

},

})

],

node: {

// prevent webpack from injecting useless setImmediate polyfill because Vue

// source contains it (although only uses it if it's native).

setImmediate: false,

// prevent webpack from injecting mocks to Node native modules

// that does not make sense for the client

dgram: 'empty',

fs: 'empty',

net: 'empty',

tls: 'empty',

child_process: 'empty'

}

}

第六,在index.html的head中引入 lib-flexible文件,具体代码百度,拿来直接用即可。

第七,测试配置是否生效

在HelloWorld.vue组件中修改样式

h1, h2 {

font-weight: normal;

font-size: 20px;

}

修改完以后在浏览器查看已生效,到此就大工告成。别忘了点个订阅哦!!!

标签: #cssrem