[Flutter] 30. StatefulWidget과 StatelessWidget

[Flutter] 30. StatefulWidget과 StatelessWidget

 

1. StatefulWidget과 StatelessWidget은 뭘까?

• StatefulWidget:
• StatelessWidget

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      // 여기에 위젯 설정 추가
    );
  }
}

 

 

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
} // end of MyApp

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return const Placeholder();
  }
}