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Mfe #2

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1a6940a
style(vm): vm
Mar 7, 2018
9db3d24
fix(style): style
Mar 7, 2018
7ecd668
docs(doc): doc
Mar 7, 2018
2d3ee97
fix(doc style): doc style
Mar 7, 2018
730d464
fix(md): md
Mar 13, 2018
f0cfc9e
fix(px to vw): px to vw
Mar 13, 2018
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163 changes: 162 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
@@ -1,13 +1,173 @@
<!--This project was bootstrapped with [Create React App](https://github.com/facebookincubator/create-react-app).-->

## mfe
### 针对移动端 使用postcss vw 适配
hahaha...
导航从pc直接移来的，好丑，请忽略。。。

### 适配方案
相信大家对rem和flex布局都很熟悉了，这里就不详细介绍了,只聊vw

配置变动：
```
{
loader: require.resolve('postcss-loader'),
options: {
config: {
path: 'postcss.config.js' // 这个得在项目根目录创建此文件
},
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss'
// plugins: () => [
// require('postcss-flexbugs-fixes'),
// autoprefixer({
// browsers: [
// '>1%',
// 'last 4 versions',
// 'Firefox ESR',
// 'not ie < 9', // React doesn't support IE8 anyway
// ],
// flexbox: 'no-2009',
// }),
// ],
},
},
```
根目录新建 postcss.config.js
```
module.exports = {
"plugins": [
require('postcss-flexbugs-fixes'),
require("autoprefixer")({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
require("postcss-aspect-ratio-mini"),
require("postcss-write-svg")({ utf8: false }),
require("postcss-cssnext"),
require("postcss-px-to-viewport")({
viewportWidth: 750,
viewportHeight: 1334,
unitPrecision: 3,
viewportUnit: 'vw',
selectorBlackList: ['.ignore', '.hairlines'],
minPixelValue: 1,
mediaQuery: false
}),
require("postcss-viewport-units"),
require("cssnano")({
preset: "advanced",
autoprefixer: false,
"postcss-zindex": false
})

]
}
```
上面的配置中，postcss-px-to-viewport可以然我们像原来一样去写px

viewportWidth和viewportHeight的配置根据你们家ui给出的设计稿来定就好了。

postcss-write-svg插件主要通过使用border-image和background来做1px的相关处理。比如
我们先写一个1像素边框
```
@svg 1px-border {
height: 2px;
@rect {
fill: var(--color, black);
width: 100%;
height: 50%;
}
}
```
在需要的时候就可以这样使用
```
.example {
border: 1px solid transparent;
border-image: svg(1px-border param(--color #00b1ff)) 2 2 stretch;
}
```
当然还有background-image的实现方式，具体参考[postcss-write-svg](https://github.com/jonathantneal/postcss-write-svghttps://github.com/jonathantneal/postcss-write-svg)

安装插件

```
npm i postcss-aspect-ratio-mini postcss-px-to-viewport postcss-write-svg postcss-cssnext postcss-viewport-units cssnano cssnano-preset-advanced --D
```
package.json文件中：
```
"dependencies": {
"cssnano": "^3.10.0",
"postcss-aspect-ratio-mini": "0.0.2",
"postcss-cssnext": "^3.1.0",
"postcss-px-to-viewport": "0.0.3",
"postcss-viewport-units": "^0.1.3",
"postcss-write-svg": "^3.0.1",
},

```

注意:autoprefixery一次就够了 在cssnano和postcss-cssnext把默认配置改为false，否则会影响性能

接下来，修改 public/index.html
主要有三个地方
1. 修改 meta viewport为了适配iponeX 添加viewport-fit=cover
```
<meta name=viewport content="width=device-width,initial-scale=1,user-scalable=no,viewport-fit=cover">
```
2. 引入 viewport-units-buggyfill.hacks的ali cdn
```
<script src="//g.alicdn.com/fdilab/lib3rd/viewport-units-buggyfill/0.6.2/??viewport-units-buggyfill.hacks.min.js,viewport-units-buggyfill.min.js"></script>
```
3. 初始化执行ali cdn的init方法
```
<script>
window.onload = function () {
window.viewportUnitsBuggyfill.init({
hacks: window.viewportUnitsBuggyfillHacks
});

var winDPI = window.devicePixelRatio;
var uAgent = window.navigator.userAgent;
var screenHeight = window.screen.height;
var screenWidth = window.screen.width;
var winWidth = window.innerWidth;
var winHeight = window.innerHeight;
console.log(
"Windows DPI:" + winDPI +
";\ruAgent:" + uAgent +
";\rScreen Width:" + screenWidth +
";\rScreen Height:" + screenHeight +
";\rWindow Width:" + winWidth +
";\rWindow Height:" + winHeight
)
}
</script>
```
另外，还可以通过媒体查询对iphoneX可能出现的兼容问题进行hack，
代码如下：
```
@media only screen and (device-width: 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3) {
/* iPhone X 独有样式写在这里*/

}
```
好了，完工

```
git clone git@github.com:myuanyuan/react-cli.git
cd react-cli
git checkout -b mfe
npm install
```

### `npm start`
你可以看到你的已经完美转为vw了，现在，在不同尺寸的设备上试一下吧

Runs the app in the development mode.<br>
Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
Expand All @@ -17,6 +177,7 @@ You will also see any lint errors in the console.


### `npm run build`
在打包好之后，运行一遍

Builds the app for production to the `build` folder.<br>
It correctly bundles React in production mode and optimizes the build for the best performance.
Expand Down
27 changes: 15 additions & 12 deletions config/webpack.config.dev.js
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Original file line number Diff line number Diff line change
Expand Up @@ -194,21 +194,24 @@ module.exports = {
{
loader: require.resolve('postcss-loader'),
options: {
config: {
path: 'postcss.config.js' // 这个得在项目根目录创建此文件
},
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
// plugins: () => [
// require('postcss-flexbugs-fixes'),
// autoprefixer({
// browsers: [
// '>1%',
// 'last 4 versions',
// 'Firefox ESR',
// 'not ie < 9', // React doesn't support IE8 anyway
// ],
// flexbox: 'no-2009',
// }),
// ],
},
},
],
Expand Down
33 changes: 18 additions & 15 deletions config/webpack.config.prod.js
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Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@ module.exports = {
bail: true,
// We generate sourcemaps in production. This is slow but gives good results.
// You can exclude the *.map files from the build during deployment.
devtool: shouldUseSourceMap ? 'source-map' : false,
// devtool: shouldUseSourceMap ? 'source-map' : false,
// In production, we only want to load the polyfills and the app code.
entry: {
app:[
Expand Down Expand Up @@ -220,27 +220,30 @@ module.exports = {
options: {
importLoaders: 1,
minimize: true,
sourceMap: shouldUseSourceMap,
// sourceMap: shouldUseSourceMap,
},
},
{
loader: require.resolve('postcss-loader'),
options: {
config: {
path: 'postcss.config.js' // 这个得在项目根目录创建此文件
},
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
// plugins: () => [
// require('postcss-flexbugs-fixes'),
// autoprefixer({
// browsers: [
// '>1%',
// 'last 4 versions',
// 'Firefox ESR',
// 'not ie < 9', // React doesn't support IE8 anyway
// ],
// flexbox: 'no-2009',
// }),
// ],
},
},
],
Expand Down Expand Up @@ -319,7 +322,7 @@ module.exports = {
// https://github.com/facebookincubator/create-react-app/issues/2488
ascii_only: true,
},
sourceMap: shouldUseSourceMap,
// sourceMap: shouldUseSourceMap,
}),
// Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
new ExtractTextPlugin({
Expand Down
22 changes: 20 additions & 2 deletions package.json
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Expand Up @@ -47,7 +47,7 @@
"extract-text-webpack-plugin": "3.0.2",
"file-loader": "1.1.5",
"fs-extra": "3.0.1",
"fsevents": "1.1.2",
"fsevents": "^1.1.3",
"history": "^4.7.2",
"html-webpack-plugin": "2.29.0",
"jest": "20.0.4",
Expand Down Expand Up @@ -104,8 +104,26 @@
"babel-preset-stage-2": "^6.24.1",
"babel-register": "^6.26.0",
"babel-runtime": "^6.20.0",
"better-scroll": "^1.8.4",
"css-unit-converter": "^1.1.1",
"cssnano": "^3.10.0",
"cssnano-preset-advanced": "^4.0.0-rc.2",
"isnumeric": "^0.3.2",
"onecolor": "^3.0.5",
"postcss": "^6.0.19",
"postcss-aspect-ratio-mini": "^0.0.2",
"postcss-cli": "^5.0.0",
"postcss-cssnext": "^3.1.0",
"postcss-flexbugs-fixes": "^3.2.0",
"postcss-media-query-parser": "^0.2.3",
"postcss-px-to-viewport": "^0.0.3",
"postcss-selector-matches": "^3.0.1",
"postcss-viewport-units": "^0.1.3",
"postcss-write-svg": "^3.0.1",
"react-app-rewire-less": "^2.1.0",
"react-app-rewired": "^1.4.1"
"react-app-rewired": "^1.4.1",
"rgb": "^0.1.0",
"rgb-hex": "^2.1.0"
},
"jest": {
"collectCoverageFrom": [
Expand Down
37 changes: 37 additions & 0 deletions postcss.config.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
module.exports = {
"plugins": [
require('postcss-flexbugs-fixes'),
require("autoprefixer")({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
require("postcss-aspect-ratio-mini"),
require("postcss-write-svg")({ utf8: false }),
require("postcss-cssnext")({
features: {
autoprefixer: false,
}
}),
require("postcss-px-to-viewport")({
viewportWidth: 750,
viewportHeight: 1334,
unitPrecision: 3,
viewportUnit: 'vw',
selectorBlackList: ['.ignore', '.hairlines'],
minPixelValue: 1,
mediaQuery: false
}),
require("postcss-viewport-units"),
require("cssnano")({
preset: "advanced",
autoprefixer: false,
"postcss-zindex": false
})

]
}
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