通过 matchMedia 获取 Web 中系统主题

Posted 2021-12-25 张驰Terry

javascript 中的 API

if (window.matchMedia('(prefers-color-scheme)').media !== 'not all') 
  console.log('🎉 Dark mode is supported');

CSS 媒体查询

.day    background: #eee; color: black; 
.night  background: #333; color: white; 

@media (prefers-color-scheme: dark) 
  .day.dark-scheme    background:  #333; color: white; 
  .night.dark-scheme  background: black; color:  #ddd; 


@media (prefers-color-scheme: light) 
  .day.light-scheme    background: white; color:  #555; 
  .night.light-scheme  background:  #eee; color: black; 


.day, .night 
  display: inline-block;
  padding: 1em;
  width: 7em;
  height: 2em;
  vertical-align: middle;

matchMedia 的兼容性

matchMedia 的 polyfill