App.js

import React, { useState, useEffect } from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createNativeStackNavigator } from '@react-navigation/native-stack';
import AsyncStorage from '@react-native-async-storage/async-storage';
import MainScreen from './screens/MainScreen';
import SettingsScreen from './screens/SettingsScreen';

const Stack = createNativeStackNavigator();

export default function App() {
  return (
    <NavigationContainer>
      <Stack.Navigator
        initialRouteName="Main"
        screenOptions={{
          headerShown: false,
        }}
      >
        <Stack.Screen name="Main" component={MainScreen} />
        <Stack.Screen name="Settings" component={SettingsScreen} />
      </Stack.Navigator>
    </NavigationContainer>
  );
}