728x90
기본 자동 생성된 main.dart
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({superkey});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatuefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
_counter++;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorSchme.inversePrimary,
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAligment.center,
children: <Widget>[
const Text('You have pushed the button this main times:'),
Text('$_counter', style: Theme.of(context).textTheme.headlineMedium,)
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'increment',
child: const Icon(Icons.add),
),
);
}
}
샘플 코드 1
- main.dart
void main() {
runApp(
MaterialApp(
home: Scaffold(
body: Text(
'Hello World',
),
),
)
);
}
샘플 코드 2
- main.dart
// import 'package:프로젝트이름/lib폴더 하위 폴더명/파일명.dart'
import package:AAA/screen/home_screen.dart';
void main() {
runApp(
MaterialApp(
home: HomeScreen(),
)
);
}
- home_screen.dart
import 'package:flutter/material.dart';
class HomeScreen extends StatelessWidget {
const HomeScreen({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
body: Text('Home Screen'),
);
}
}
샘프로 코드 3
- main.dart
import 'package:flutter/material.dart';
import 'myHomeMain.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: MyHomeMain(),
);
}
}