其实在stylus与sass中实现移动端1像素线各个手机设备的适配问题的原理是一样的,
首先我还是先介绍一下原理和所依赖的方法
原理:其实他们都是通过css3的媒体查询来实现的
步骤思路:
1、给目标元素进行相对定位
2、给目标元素添加伪元素 ::after/before 并进行绝对定位
3、判断DPI 1DPI 100% --------------使用媒体查询
2DPI 200%
3DPI 300%
4、通过css3中的transform scale等比缩放
下面是具体的代码,使用时只需引入代码 在style里直接写 border: 1px 0 0 0, #ccc 即可使用
在stylus中
border($border-width = 1px, $border-color = #ccc, $border-style = solid, $radius = ) // 为边框位置提供定位参考 position: relative; if $border-width == null $border-width: ; border-radius: $radius; &::after // 用以解决边框layer遮盖内容 pointer-events: none; position: absolute; z-index: ; top: ; left: ; // fix当元素宽度出现小数时,边框可能显示不全的问题 // overflow: hidden; content: "\0020"; border-color: $border-color; border-style: $border-style; border-width: $border-width; // 适配dpr进行缩放 @media (max--moz-device-pixel-ratio: 1.49), (-webkit-max-device-pixel-ratio: 1.49), (max-device-pixel-ratio: 1.49), (max-resolution: 143dpi), (max-resolution: .49dppx) width: %; height: %; if $radius != null { border-radius: $radius; } @media (min--moz-device-pixel-ratio: 1.5) and (max--moz-device-pixel-ratio: 2.49), (-webkit-min-device-pixel-ratio: 1.5) and (-webkit-max-device-pixel-ratio: 2.49),(min-device-pixel-ratio: 1.5) and (max-device-pixel-ratio: 2.49),(min-resolution: 144dpi) and (max-resolution: 239dpi),(min-resolution: .5dppx) and (max-resolution: .49dppx) width: %; height: %; transform: scale(.) if $radius != null { border-radius: $radius * ; } @media (min--moz-device-pixel-ratio: 2.5), (-webkit-min-device-pixel-ratio: 2.5),(min-device-pixel-ratio: 2.5), (min-resolution: 240dpi),(min-resolution: .5dppx) width: %; height: %; transform: scale(.) if $radius != null { border-radius: $radius * ; } transform-origin: ;
在sass中
@mixin border($border-width: 1px, $border-color: map-get($base, border-color), $border-style: solid, $radius: null) { // 为边框位置提供定位参考 position: relative; @if $border-width == null { $border-width: ; } border-radius: $radius; &::after { // 用以解决边框layer遮盖内容 pointer-events: none; position: absolute; z-index: ; top: ; left: ; // fix当元素宽度出现小数时,边框可能显示不全的问题 // overflow: hidden; content: "\0020"; border-color: $border-color; border-style: $border-style; border-width: $border-width; // 适配dpr进行缩放 @include responsive(retina1x) { width: %; height: %; @if $radius != null { border-radius: $radius; } } @include responsive(retina2x) { width: %; height: %; @include transform(scale(.)); @if $radius != null { border-radius: $radius * ; } } @include responsive(retina3x) { width: %; height: %; @include transform(scale(.)); @if $radius != null { border-radius: $radius * ; } } @include transform-origin( ); } }
在component中
import styled from 'styled-components' const border = ({ component = null, width = '1px', style = 'solid', color = '#ccc', radius = , }) => { return styled(component) ` position: relative; border-width: ${ width}; border-radius: ${ radius + 'px'}; &::after { pointer-events: none; position: absolute; z-index: ; top: ; left: ; content: ""; border-color: ${ color}; border-style: ${ style}; border-width: ${ width}; @media (max--moz-device-pixel-ratio: 1.49), (-webkit-max-device-pixel-ratio: 1.49), (max-device-pixel-ratio: 1.49), (max-resolution: 143dpi), (max-resolution: .49dppx) { width: %; height: %; border-radius: ${ radius + 'px'}; }; @media (min--moz-device-pixel-ratio: 1.5) and (max--moz-device-pixel-ratio: 2.49), (-webkit-min-device-pixel-ratio: 1.5) and (-webkit-max-device-pixel-ratio: 2.49), (min-device-pixel-ratio: 1.5) and (max-device-pixel-ratio: 2.49), (min-resolution: 144dpi) and (max-resolution: 239dpi), (min-resolution: .5dppx) and (max-resolution: .49dppx) { width: %; height: %; transform: scale(.); border-radius: ${ radius * + 'px'}; }; @media (min--moz-device-pixel-ratio: 2.5), (-webkit-min-device-pixel-ratio: 2.5), (min-device-pixel-ratio: 2.5), (min-resolution: 240dpi), (min-resolution: .5dppx) { width: %; height: %; transform: scale(.); border-radius: ${ radius * + 'px'} }; transform-origin: ; }; ` } export default border
亲自使用过超级好使
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