vue3如何使用postcss-px-to-viewport适配屏幕
作者：王天平·Jason Wong
这篇文章主要介绍了vue3如何使用postcss-px-to-viewport适配屏幕问题，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教
本教程只使用于vue3+vue-cli5创建的项目，说白了就是使用的webpack环境，不适用于vite，后面会更新。
因为技术总是更新迭代，大多数博主都没有习惯写上自己的配置，总是把一段自认为可以的配置贴出来，很多时候看了不仅误人子弟，还耽误很多开发时间，我，致力于做一个负责人的博主，都会贴出配置和使用环境，方便大家做参考。
使用环境
| 名称 | 版本 |
|---|---|
| vue | 3.2.13 |
| vue-cli | 5.x |
| webpack | 5.x |
| nodejs | 16.15 |
| postcss-px-to-viewport | ^1.1.1 |
安装
npm install postcss-px-to-viewport --save-dev yarn add postcss-px-to-viewport --save-dev pnpm add postcss-px-to-viewport --save-dev
如果devserver正在运行，安装完成以后记得重启devserver。
配置
在项目根目录下创建 postcss.config.js 文件，并填入一下内容：
module.exports = {
plugins: {
// ...
'postcss-px-to-viewport': {
// options
unitToConvert: "px",
viewportWidth: 1920,
viewportHeight:1080,
unitPrecision: 3,
propList: [
"*"
],
viewportUnit: "vw",
fontViewportUnit: "vw",
selectorBlackList: [],
minPixelValue: 1,
mediaQuery: false,
replace: true,
exclude: /(\/|\\)(node_modules)(\/|\\)/,
}
}
}
重新运行，打开浏览器查看属性值已经变为vw计算，就是这么简单。
附上插件的github地址： https://github.com/evrone/postcss-px-to-viewport
| 项目 | 类型 | 描述 |
|---|---|---|
| unitToConvert | (String) | unit to convert, by default, it is px. |
| viewportWidth | (Number) | The width of the viewport. |
| unitPrecision | (Number) | The decimal numbers to allow the vw units to grow to. |
| propList | (Array) | - The properties that can change from px to vw. |
| -Values need to be exact matches. | ||
| Use * at the start or end of a word. (['position'] will match background-position-y) | ||
| Use ! to not match a property. Example: ['*', '!letter-spacing'] | ||
| Combine the "not" prefix with the other prefixes. Example: ['', '!font'] | ||
| viewportUnit | (String) | Expected units. |
| fontViewportUnit | (String) | Expected units for font. |
| selectorBlackList | (Array)The selectors to ignore and leave as px. | If value is string, it checks to see if selector contains the string. ['body'] will match .body-class |
| If value is regexp, it checks to see if the selector matches the regexp. [/^body$/] will match body but not .body | ||
| minPixelValue | (Number) | Set the minimum pixel value to replace. |
| mediaQuery | (Boolean) | replaces rules containing vw instead of adding fallbacks |
| exclude | (Regexp or Array of Regexp Ignore some files like 'node_modules') | If value is regexp, will ignore the matches files. |
| If value is array, the elements of the array are regexp. | ||
| include | (Regexp or Array of Regexp) If include is set, only matching files will be converted, for example, only files under src/mobile/ (include: /\/src\/mobile\//) | If value is array, the elements of the array are regexp. |
| If value is regexp, will ignore the matches files. | ||
| landscape | (Boolean) | Adds @media (orientation: landscape) with values converted via landscapeWidth. |
| landscapeUnit | (String) | Expected unit for landscape option |
| landscapeWidth | (Number) | Viewport width for landscape orientation. |
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。