Tek Kod Tabanı ile iOS ve Android

import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
  return MaterialApp(
    home: Scaffold(
      appBar: AppBar(title: const Text('Flutter')),
      body: const Center(child: Text('Merhaba Flutter')),
    ),
  );
}
}

import React from 'react';
import { SafeAreaView, Text } from 'react-native';

export default function App() {
return (
  
    Merhaba React Native
  
);
}