_layout.tsx

import {
  DarkTheme,
  DefaultTheme,
  ThemeProvider,
} from '@react-navigation/native';
import { Stack } from 'expo-router';
import * as SplashScreen from 'expo-splash-screen';
import { useEffect } from 'react';

import { useColorScheme } from '@/hooks/useColorScheme';

// Prevent the splash screen from auto-hiding before asset loading is complete.
SplashScreen.preventAutoHideAsync();

export default function RootLayout() {
  const colorScheme = useColorScheme();

  useEffect(() => {
    SplashScreen.hideAsync();
  }, []);

  return (
    <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
      <Stack>
        <Stack.Screen name="(tabs)" options={{ headerShown: false }} />
        <Stack.Screen name="+not-found" />
      </Stack>
    </ThemeProvider>
  );
}