Flutter 앱: MVCS 아키텍처 + 툴바/바텀 네비게이션 구현

app/android/app/build.gradle.kts

@@ -6,7 +6,7 @@ plugins {
 }
 
 android {
-    namespace = "co.kr.caadiq.fromis9"
+    namespace = "com.caadiq.fromis9.unofficial"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -21,7 +21,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "co.kr.caadiq.fromis9"
+        applicationId = "com.caadiq.fromis9.unofficial"
         // You can update the following values to match your application needs.
         // For more information, see: https://flutter.dev/to/review-gradle-config.
         minSdk = flutter.minSdkVersion

app/android/app/src/main/kotlin/com/caadiq/fromis9/unofficial/MainActivity.kt

@@ -1,4 +1,4 @@
-package co.kr.caadiq.fromis9
+package com.caadiq.fromis9.unofficial
 
 import io.flutter.embedding.android.FlutterActivity
 

app/lib/core/constants.dart

@@ -0,0 +1,53 @@
+/// 앱 전역 상수 정의
+library;
+
+import 'package:flutter/material.dart';
+
+/// API 기본 URL
+const String apiBaseUrl = 'https://fromis9.caadiq.co.kr/api';
+
+/// 앱 테마 색상
+class AppColors {
+  // Primary 색상 (웹과 동일)
+  static const Color primary = Color(0xFF4B8B3B);
+  static const Color primaryLight = Color(0xFF6BA85A);
+  static const Color primaryDark = Color(0xFF3A6E2D);
+  
+  // 배경 색상
+  static const Color background = Color(0xFFFAFAFA);
+  static const Color surface = Colors.white;
+  
+  // 텍스트 색상
+  static const Color textPrimary = Color(0xFF1A1A1A);
+  static const Color textSecondary = Color(0xFF6B7280);
+  static const Color textTertiary = Color(0xFF9CA3AF);
+  
+  // 테두리 색상
+  static const Color border = Color(0xFFE5E7EB);
+  static const Color divider = Color(0xFFF3F4F6);
+}
+
+/// 앱 텍스트 스타일
+class AppTextStyles {
+  static const TextStyle heading1 = TextStyle(
+    fontSize: 24,
+    fontWeight: FontWeight.bold,
+    color: AppColors.textPrimary,
+  );
+  
+  static const TextStyle heading2 = TextStyle(
+    fontSize: 20,
+    fontWeight: FontWeight.bold,
+    color: AppColors.textPrimary,
+  );
+  
+  static const TextStyle body = TextStyle(
+    fontSize: 14,
+    color: AppColors.textPrimary,
+  );
+  
+  static const TextStyle caption = TextStyle(
+    fontSize: 12,
+    color: AppColors.textSecondary,
+  );
+}

app/lib/core/router.dart

@@ -0,0 +1,51 @@
+/// 앱 라우터 설정
+library;
+
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import '../views/main_shell.dart';
+import '../views/home/home_view.dart';
+import '../views/members/members_view.dart';
+import '../views/album/album_view.dart';
+import '../views/schedule/schedule_view.dart';
+
+/// 네비게이션 키
+final GlobalKey<NavigatorState> rootNavigatorKey = GlobalKey<NavigatorState>();
+
+/// 앱 라우터 설정
+final GoRouter appRouter = GoRouter(
+  navigatorKey: rootNavigatorKey,
+  initialLocation: '/',
+  routes: [
+    // 메인 셸 (바텀 네비게이션)
+    ShellRoute(
+      builder: (context, state, child) => MainShell(child: child),
+      routes: [
+        GoRoute(
+          path: '/',
+          pageBuilder: (context, state) => const NoTransitionPage(
+            child: HomeView(),
+          ),
+        ),
+        GoRoute(
+          path: '/members',
+          pageBuilder: (context, state) => const NoTransitionPage(
+            child: MembersView(),
+          ),
+        ),
+        GoRoute(
+          path: '/album',
+          pageBuilder: (context, state) => const NoTransitionPage(
+            child: AlbumView(),
+          ),
+        ),
+        GoRoute(
+          path: '/schedule',
+          pageBuilder: (context, state) => const NoTransitionPage(
+            child: ScheduleView(),
+          ),
+        ),
+      ],
+    ),
+  ],
+);

app/lib/main.dart

@@ -1,122 +1,66 @@
+/// fromis_9 Unofficial App
+/// 
+/// MVCS 아키텍처:
+/// - Models: 데이터 모델
+/// - Views: UI 화면
+/// - Controllers: 비즈니스 로직 (Riverpod)
+/// - Services: API 통신
+library;
+
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'core/router.dart';
+import 'core/constants.dart';
 
 void main() {
-  runApp(const MyApp());
+  WidgetsFlutterBinding.ensureInitialized();
+  
+  // 상태바 스타일 설정
+  SystemChrome.setSystemUIOverlayStyle(
+    const SystemUiOverlayStyle(
+      statusBarColor: Colors.transparent,
+      statusBarIconBrightness: Brightness.dark,
+    ),
+  );
+  
+  runApp(
+    const ProviderScope(
+      child: Fromis9App(),
+    ),
+  );
 }
 
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
+class Fromis9App extends StatelessWidget {
+  const Fromis9App({super.key});
 
-  // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
+    return MaterialApp.router(
+      title: 'fromis_9',
+      debugShowCheckedModeBanner: false,
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
-        colorScheme: .fromSeed(seedColor: Colors.deepPurple),
-      ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
-    );
-  }
-}
-
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-    return Scaffold(
-      appBar: AppBar(
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          //
-          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-          // action in the IDE, or press "p" in the console), to see the
-          // wireframe for each widget.
-          mainAxisAlignment: .center,
-          children: [
-            const Text('You have pushed the button this many times:'),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-          ],
+        useMaterial3: true,
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: AppColors.primary,
+          brightness: Brightness.light,
         ),
+        scaffoldBackgroundColor: AppColors.background,
+        appBarTheme: const AppBarTheme(
+          backgroundColor: Colors.white,
+          foregroundColor: AppColors.textPrimary,
+          elevation: 0,
+          scrolledUnderElevation: 1,
+          centerTitle: true,
+          titleTextStyle: TextStyle(
+            color: AppColors.primary,
+            fontSize: 20,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+        fontFamily: 'Pretendard',
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ),
+      routerConfig: appRouter,
     );
   }
 }

app/lib/views/album/album_view.dart

@@ -0,0 +1,42 @@
+/// 앨범 화면
+library;
+
+import 'package:flutter/material.dart';
+import '../../core/constants.dart';
+
+class AlbumView extends StatelessWidget {
+  const AlbumView({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(
+            Icons.album_outlined,
+            size: 64,
+            color: AppColors.textTertiary,
+          ),
+          SizedBox(height: 16),
+          Text(
+            '앨범',
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.bold,
+              color: AppColors.textSecondary,
+            ),
+          ),
+          SizedBox(height: 8),
+          Text(
+            '앨범 화면 준비 중',
+            style: TextStyle(
+              fontSize: 14,
+              color: AppColors.textTertiary,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

app/lib/views/home/home_view.dart

@@ -0,0 +1,42 @@
+/// 홈 화면
+library;
+
+import 'package:flutter/material.dart';
+import '../../core/constants.dart';
+
+class HomeView extends StatelessWidget {
+  const HomeView({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(
+            Icons.home_outlined,
+            size: 64,
+            color: AppColors.textTertiary,
+          ),
+          SizedBox(height: 16),
+          Text(
+            '홈',
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.bold,
+              color: AppColors.textSecondary,
+            ),
+          ),
+          SizedBox(height: 8),
+          Text(
+            '홈 화면 준비 중',
+            style: TextStyle(
+              fontSize: 14,
+              color: AppColors.textTertiary,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

app/lib/views/main_shell.dart

@@ -0,0 +1,155 @@
+/// 메인 셸 - 툴바 + 바텀 네비게이션
+library;
+
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:lucide_icons/lucide_icons.dart';
+import '../core/constants.dart';
+
+/// 메인 앱 셸 (툴바 + 바텀 네비게이션 + 콘텐츠)
+class MainShell extends StatelessWidget {
+  final Widget child;
+
+  const MainShell({super.key, required this.child});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: AppColors.background,
+      // 앱바 (툴바)
+      appBar: AppBar(
+        backgroundColor: Colors.white,
+        elevation: 0,
+        scrolledUnderElevation: 1,
+        centerTitle: true,
+        title: Text(
+          _getTitle(context),
+          style: const TextStyle(
+            color: AppColors.primary,
+            fontSize: 20,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+      ),
+      // 콘텐츠
+      body: child,
+      // 바텀 네비게이션
+      bottomNavigationBar: const _BottomNavBar(),
+    );
+  }
+
+  /// 현재 경로에 따른 타이틀 반환
+  String _getTitle(BuildContext context) {
+    final location = GoRouterState.of(context).uri.path;
+    switch (location) {
+      case '/':
+        return 'fromis_9';
+      case '/members':
+        return '멤버';
+      case '/album':
+        return '앨범';
+      case '/schedule':
+        return '일정';
+      default:
+        return 'fromis_9';
+    }
+  }
+}
+
+/// 바텀 네비게이션 바
+class _BottomNavBar extends StatelessWidget {
+  const _BottomNavBar();
+
+  @override
+  Widget build(BuildContext context) {
+    final location = GoRouterState.of(context).uri.path;
+    
+    return Container(
+      decoration: const BoxDecoration(
+        color: Colors.white,
+        border: Border(
+          top: BorderSide(color: AppColors.border, width: 1),
+        ),
+      ),
+      child: SafeArea(
+        child: SizedBox(
+          height: 64,
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.spaceAround,
+            children: [
+              _NavItem(
+                icon: LucideIcons.home,
+                label: '홈',
+                isActive: location == '/',
+                onTap: () => context.go('/'),
+              ),
+              _NavItem(
+                icon: LucideIcons.users,
+                label: '멤버',
+                isActive: location == '/members',
+                onTap: () => context.go('/members'),
+              ),
+              _NavItem(
+                icon: LucideIcons.disc3,
+                label: '앨범',
+                isActive: location.startsWith('/album'),
+                onTap: () => context.go('/album'),
+              ),
+              _NavItem(
+                icon: LucideIcons.calendar,
+                label: '일정',
+                isActive: location.startsWith('/schedule'),
+                onTap: () => context.go('/schedule'),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+/// 네비게이션 아이템
+class _NavItem extends StatelessWidget {
+  final IconData icon;
+  final String label;
+  final bool isActive;
+  final VoidCallback onTap;
+
+  const _NavItem({
+    required this.icon,
+    required this.label,
+    required this.isActive,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final color = isActive ? AppColors.primary : AppColors.textTertiary;
+    
+    return Expanded(
+      child: InkWell(
+        onTap: onTap,
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(
+              icon,
+              size: 22,
+              color: color,
+            ),
+            const SizedBox(height: 4),
+            Text(
+              label,
+              style: TextStyle(
+                fontSize: 12,
+                fontWeight: isActive ? FontWeight.w600 : FontWeight.w500,
+                color: color,
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

app/lib/views/members/members_view.dart

@@ -0,0 +1,42 @@
+/// 멤버 화면
+library;
+
+import 'package:flutter/material.dart';
+import '../../core/constants.dart';
+
+class MembersView extends StatelessWidget {
+  const MembersView({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(
+            Icons.people_outline,
+            size: 64,
+            color: AppColors.textTertiary,
+          ),
+          SizedBox(height: 16),
+          Text(
+            '멤버',
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.bold,
+              color: AppColors.textSecondary,
+            ),
+          ),
+          SizedBox(height: 8),
+          Text(
+            '멤버 화면 준비 중',
+            style: TextStyle(
+              fontSize: 14,
+              color: AppColors.textTertiary,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

app/lib/views/schedule/schedule_view.dart

@@ -0,0 +1,42 @@
+/// 일정 화면
+library;
+
+import 'package:flutter/material.dart';
+import '../../core/constants.dart';
+
+class ScheduleView extends StatelessWidget {
+  const ScheduleView({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(
+            Icons.calendar_today_outlined,
+            size: 64,
+            color: AppColors.textTertiary,
+          ),
+          SizedBox(height: 16),
+          Text(
+            '일정',
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.bold,
+              color: AppColors.textSecondary,
+            ),
+          ),
+          SizedBox(height: 8),
+          Text(
+            '일정 화면 준비 중',
+            style: TextStyle(
+              fontSize: 14,
+              color: AppColors.textTertiary,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

app/pubspec.lock

@@ -264,14 +264,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
-  image_gallery_saver:
-    dependency: "direct main"
-    description:
-      name: image_gallery_saver
-      sha256: "0aba74216a4d9b0561510cb968015d56b701ba1bd94aace26aacdd8ae5761816"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.3"
   intl:
     dependency: "direct main"
     description:
@@ -336,6 +328,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
+  lucide_icons:
+    dependency: "direct main"
+    description:
+      name: lucide_icons
+      sha256: ad24d0fd65707e48add30bebada7d90bff2a1bba0a72d6e9b19d44246b0e83c4
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.257.0"
   matcher:
     dependency: transitive
     description:

app/pubspec.yaml

@@ -40,8 +40,8 @@ dependencies:
   flutter_riverpod: ^3.1.0
   intl: ^0.20.2
   photo_view: ^0.15.0
-  image_gallery_saver: ^2.0.3
   path_provider: ^2.1.5
+  lucide_icons: ^0.257.0
 
 dev_dependencies:
   flutter_test: