Today we’re going to learn how we can add dark mode using React and the MUI design library.
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The first thing we’ll do is to create two dark and light themes:
Theme.tsx
// theme.ts import { createTheme, Theme } from '@mui/material/styles'; import '@fontsource/roboto'; import '@fontsource/roboto/100.css'; import '@fontsource/roboto/300.css'; import '@fontsource/roboto/400.css'; const lightTheme: Theme = createTheme({ palette: { mode: 'light', primary: { main: 'teal', }, background: { default: '#FFFFFF' }, }, typography: { fontFamily: 'Roboto, sans-serif', }, components: { MuiDialog: { styleOverrides: { root: { backgroundColor: 'rgba(0, 0, 0, 0.2)', }, }, }, }, }); const darkTheme: Theme = createTheme({ palette: { mode: 'dark', primary: { main: primary, }, background: { default: '#000000', }, }, typography: { fontFamily: 'Roboto, sans-serif', }, components: { MuiDialog: { styleOverrides: { root: { backgroundColor: 'rgba(0, 0, 0, 0.2)', }, }, }, }, }); export { lightTheme, darkTheme };
Once created, let’s generate the logic that will set the dark mode according to the user’s preferences.
Inside our _app.tsx or main file:
const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)');
With this mediaQuery, we can set the dark mode if the user has it activated in the system.
We add it inside the rendering function.
const MyApp: React.FC = ({ Component, pageProps }) => { ... const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)'); ... return ( <ThemeProvider theme={prefersDarkMode ? darkTheme : lightTheme}>
If we want to change our color file for DarkMode, we will put:
const prefersDarkMode = typeof window !== 'undefined' && window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches; export const marronTransparente = prefersDarkMode ? 'rgba(234, 85, 72, 0.9)' : 'rgba(121, 85, 72, 0.9)';
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Once created, let’s generate the logic that will set the dark mode according to the user’s preferences.
Inside our _app.tsx or main file:
const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)');
With this mediaQuery, we can set the dark mode if the user has it activated in the system.
We add it inside the rendering function.
const MyApp: React.FC = ({ Component, pageProps }) => { ... const prefersDarkMode = useMediaQuery('(prefers-color-scheme: dark)'); ... return ( <ThemeProvider theme={prefersDarkMode ? darkTheme : lightTheme}>
If we want to change our color file for DarkMode, we will put:
const prefersDarkMode = typeof window !== 'undefined' && window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches; export const marronTransparente = prefersDarkMode ? 'rgba(234, 85, 72, 0.9)' : 'rgba(121, 85, 72, 0.9)';
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