xlx_teacher_app/uno.config.ts

// https://www.npmjs.com/package/@uni-helper/unocss-preset-uni
import { presetUni } from '@uni-helper/unocss-preset-uni'
import {
  defineConfig,
  definePreset,
  presetAttributify,
  presetIcons,
  transformerDirectives,
  transformerVariantGroup,
} from 'unocss'

export const presetRemToRpx = definePreset(() => {
  const baseFontSize = 16
  const remRE = /(-?[.\d]+)rem/g
  return {
    name: '@unocss/preset-rem-to-px',
    postprocess: (util) => {
      util.entries.forEach((i) => {
        const value = i[1]
        if (typeof value === 'string' && remRE.test(value))
          i[1] = value.replace(remRE, (_, p1) => `${p1 * baseFontSize * 2}rpx`)
      })
    },
  }
})

export default defineConfig({
  presets: [
    presetUni({
      attributify: {
        // prefix: 'fg-', // 如果加前缀，则需要在代码里面使用 `fg-` 前缀，如：<div fg-border="1px solid #000"></div>
        prefixedOnly: true,
      },
    }),
    presetIcons({
      scale: 1.2,
      warn: true,
      extraProperties: {
        'display': 'inline-block',
        'vertical-align': 'middle',
      },
    }),
    // 支持css class属性化
    presetAttributify(),
    presetRemToRpx(),
  ],
  transformers: [
    // 启用指令功能：主要用于支持 @apply、@screen 和 theme() 等 CSS 指令
    transformerDirectives(),
    // 启用 () 分组功能
    // 支持css class组合，eg: `<div class="hover:(bg-gray-400 font-medium) font-(light mono)">测试 unocss</div>`
    transformerVariantGroup(),
  ],
  shortcuts: [
    {
      center: 'flex justify-center items-center',
    },
  ],
  // 动态图标需要在这里配置，或者写在vue页面中注释掉
  safelist: ['i-carbon-code'],
  rules: [
    [
      'p-safe',
      {
        padding:
          'env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)',
      },
    ],
    ['pt-safe', { 'padding-top': 'env(safe-area-inset-top)' }],
    ['pb-safe', { 'padding-bottom': 'env(safe-area-inset-bottom)' }],
  ],
  theme: {
    colors: {
      /** 主题色，用法如: text-primary */
      primary: 'var(--wot-color-theme,#0957DE)',
    },
    fontSize: {
      /** 提供更小号的字体，用法如：text-2xs */
      '2xs': ['20rpx', '28rpx'],
      '3xs': ['18rpx', '26rpx'],
    },
  },
})