Last active
November 12, 2023 09:55
-
-
Save scott1991/dc0dac81fb7596d3f54f9cb2c77c8a18 to your computer and use it in GitHub Desktop.
Implementing Local Storage and System Preference Color Mode with React-Dark-Mode-Toggle
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import DarkModeToggle from "react-dark-mode-toggle"; | |
import { useState, useEffect } from "react"; | |
function ReactDark() { | |
const [isDarkMode, setIsDarkMode] = useState(() => { | |
const theme = localStorage.getItem("theme"); | |
if (theme) { | |
return theme === "dark"; | |
} | |
// If theme not found in localStorage, use system prefers setting | |
return window.matchMedia("(prefers-color-scheme: dark)").matches; | |
}); | |
// Some divs will not be affected by data-bs-theme because they inherit from body, | |
// but React can't add data-bs-theme there directly | |
useEffect(() => { | |
const theme = isDarkMode ? "dark" : "light"; | |
document.body.setAttribute("data-bs-theme", theme); | |
}, [isDarkMode]); | |
const onToggleDarkMode = (newIsDarkMode) => { | |
setIsDarkMode(newIsDarkMode); | |
const theme = newIsDarkMode ? "dark" : "light"; | |
localStorage.setItem("theme", theme); | |
}; | |
return ( | |
<div> | |
{/* This is the DarkModeToggle component */} | |
<DarkModeToggle | |
onChange={onToggleDarkMode} | |
checked={isDarkMode} | |
size={80} | |
/> | |
</div> | |
); | |
} | |
export default ReactDark; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment