Fonts

With Expo, you can load fonts dynamically using useFont hook from expo-font library. With this approach, you need to wait for the font to load before showing or hiding your splash screen.

With the last version of expo-font introduced with Expo 50, you can use expo-font as a plugin in your app.config.js to load fonts natively.

To add a custom font you only need to put the font file in the assets/fonts and update the expo config by adding the exact file path to the config like the following:

app.config.js

import type { ConfigContext, ExpoConfig } from '@expo/config';

export default ({ config }: ConfigContext): ExpoConfig => ({
  ...config,
  plugins: [
    [
      'expo-font',
      {
        fonts: ['./assets/fonts/Inter.ttf'],
      },
    ],
  ],
});

Next, Make sure to add your new font to Tailwind CSS config to use it with className

tailwind.config.js

const colors = require('./src/ui/theme/colors');

/** @type {import('tailwindcss').Config} */
module.exports = {
  // NOTE: Update this to include the paths to all of your component files.
  content: ['./src/**/*.{js,jsx,ts,tsx}'],
  presets: [require('nativewind/preset')],
  theme: {
    extend: {
      fontFamily: {
        inter: ['Inter'],
      },
      colors,
    },
  },
  plugins: [],
};

As we are linking font natively you need to run expo prebuild and then expo ios or expo android to use the new font.

More details about adding fonts with Tailwind CSS can be found in the Nativewind documentation.