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No-brainer Dark Mode for Next.js
TIL: @pacocoursey next-themes
. I've been pretty happy using @tailwindCSS and letting the system render the right theme for the user, but if you do want to add UI controls. Give this no-brainer a shot, here's how I did mine.
Set the provider and attribute to display the active theme as a class. This will enable all dark
classes present in the HTML tree. Don't forget to declare this in your @tailwindCSS config file: module.exports = { darkMode: 'class' }
:
import { ThemeProvider } from "next-themes";import type { AppProps } from "next/app";function MyApp({ Component, pageProps }: AppProps) { return ( <ThemeProvider attribute="class"> <Component {...pageProps} /> </ThemeProvider> );}
To consume and toggle the UI, use their useTheme
hook. To avoid hydration errors, return a loading state of your choice until fully mounted:
import { useState, useEffect } from "react";import { useTheme } from "next-themes";import { SunIcon, MoonIcon } from "@heroicons/react/outline";export default function ThemeToggler() { const { resolvedTheme, setTheme } = useTheme(); const [mounted, setMounted] = useState(false); useEffect(() => { setMounted(true) }, []); if (!mounted) return <></>; return ( <button onClick={() => { setTheme(resolvedTheme === "dark" ? "light" : "dark"); }} > {resolvedTheme === "dark" ? <SunIcon /> : <MoonIcon />} </button> );}
It is that simple. It has 74,528 weekly npm downloads and if it's good enough for @leeerob, it's good for me too. Get creative with your loading state and toggle button (or not && KISS). Check out their next-themes
GH repo for more info.
Original Link: https://dev.to/ekqt/no-brainer-dark-mode-for-nextjs-fo0
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