플러터 네비게이션

// main.dart

import 'package:flutter/material.dart';

import 'views/first_screen.dart';

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

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: FirstScreen(),
    );
  }
}

// views/first_screen.dart

import 'package:flutter/material.dart';

import 'second_screen.dart';

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

  void _goNextPage(BuildContext context) {
    Navigator.push(
        context, MaterialPageRoute(builder: (context) => SecondScreen()));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: ElevatedButton(
          onPressed: () => _goNextPage(context),
          child: Text('다음 페이지로 이동..'),
        ),
      ),
    );
  }
}

// views/second_screen.dart

import 'package:flutter/material.dart';

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Text('Second screen'),
      ),
    );
  }
}