暗黑模式

暗黑模式

为你的 Next.js 应用添加暗黑模式。

安装 next-themes

首先安装 next-themes：

pnpmnpmyarnbun

pnpm add next-themes

创建主题提供者

components/theme-provider.tsx

"use client"
import * as React from "react"
import { ThemeProvider as NextThemesProvider } from "next-themes"
export function ThemeProvider({
  children,
  ...props
}: React.ComponentProps<typeof NextThemesProvider>) {
  return <NextThemesProvider {...props}>{children}</NextThemesProvider>
}

包装根布局

将 ThemeProvider 添加到你的根布局中。

app/layout.tsx

import { ThemeProvider } from "@/components/theme-provider"
export default function RootLayout({ children }: RootLayoutProps) {
  return (
    <>
      <html lang="en" suppressHydrationWarning>
        <head />
        <body>
          <ThemeProvider
            attribute="class"
            defaultTheme="system"
            enableSystem
            disableTransitionOnChange
          >
            {children}
          </ThemeProvider>
        </body>
      </html>
    </>
  )
}

添加模式切换

在你的站点上放置一个模式切换按钮，用于在亮色模式和暗色模式之间切换。

PreviewCode

"use client"
import * as React from "react"
import { Moon, Sun } from "lucide-react"
import { useTheme } from "next-themes"
import { Button } from "@/components/ui/button"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
export function ModeToggle() {
  const { setTheme } = useTheme()
  return (
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant="outline" size="icon">
          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
          <span className="sr-only">Toggle theme</span>
        </Button>
      </DropdownMenuTrigger>
      <DropdownMenuContent align="end">
        <DropdownMenuItem onClick={() => setTheme("light")}>
          Light
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme("dark")}>
          Dark
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme("system")}>
          System
        </DropdownMenuItem>
      </DropdownMenuContent>
    </DropdownMenu>
  )
}