lib/main/adapter/presentation/navigation_bloc.dart

@@ -0,0 +1,22 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class NavigationBloc extends Bloc<NavigationEvent, NavigationItem> {
+  NavigationBloc() : super(NavigationItem.basicConfiguration) {
+    on<NavigationChangedEvent>((event, emit) => emit(event.item));
+  }
+}
+
+sealed class NavigationEvent {}
+
+class NavigationChangedEvent extends NavigationEvent {
+  final NavigationItem item;
+
+  NavigationChangedEvent(this.item);
+}
+
+enum NavigationItem {
+  basicConfiguration,
+  modConfiguration,
+  serverProperties,
+  about,
+}

lib/main/framework/ui/minecraft_server_installer.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:minecraft_server_installer/main/adapter/gateway/installation_repository_impl.dart';
 import 'package:minecraft_server_installer/main/adapter/presentation/installation_bloc.dart';
+import 'package:minecraft_server_installer/main/adapter/presentation/navigation_bloc.dart';
 import 'package:minecraft_server_installer/main/application/use_case/download_file_use_case.dart';
 import 'package:minecraft_server_installer/main/application/use_case/grant_file_permission_use_case.dart';
 import 'package:minecraft_server_installer/main/application/use_case/write_file_use_case.dart';
@@ -18,8 +19,6 @@ import 'package:minecraft_server_installer/vanilla/framework/api/vanilla_api_ser
 class MinecraftServerInstaller extends StatelessWidget {
   const MinecraftServerInstaller({super.key});
 
-  Widget get _body => const Padding(padding: EdgeInsets.all(32), child: BasicConfigurationTab());
-
   @override
   Widget build(BuildContext context) {
     final installationApiService = InstallationApiServiceImpl();
@@ -44,6 +43,7 @@ class MinecraftServerInstaller extends StatelessWidget {
       ),
       home: MultiBlocProvider(
         providers: [
+          BlocProvider(create: (_) => NavigationBloc()),
           BlocProvider(
             create: (_) => InstallationBloc(
               downloadFileUseCase,
@@ -63,7 +63,10 @@ class MinecraftServerInstaller extends StatelessWidget {
                 child: Builder(
                   builder: (context) {
                     if (context.watch<InstallationBloc>().state.isLocked) {
-                      return MouseRegion(cursor: SystemMouseCursors.forbidden, child: AbsorbPointer(child: _body));
+                      return MouseRegion(
+                        cursor: SystemMouseCursors.forbidden,
+                        child: AbsorbPointer(child: _body),
+                      );
                     }
 
                     return _body;
@@ -76,4 +79,29 @@ class MinecraftServerInstaller extends StatelessWidget {
       ),
     );
   }
+
+  Widget get _body => BlocConsumer<NavigationBloc, NavigationItem>(
+        listener: (_, __) {},
+        builder: (_, state) => Padding(
+          padding: const EdgeInsets.all(32),
+          child: AnimatedSwitcher(
+            duration: const Duration(milliseconds: 200),
+            child: SizedBox(
+              key: ValueKey('tab${state.toString()}'),
+              child: _tabContent(state),
+            ),
+          ),
+        ),
+      );
+
+  Widget _tabContent(NavigationItem navigationItem) {
+    switch (navigationItem) {
+      case NavigationItem.basicConfiguration:
+        return const BasicConfigurationTab();
+      case NavigationItem.modConfiguration:
+      case NavigationItem.serverProperties:
+      case NavigationItem.about:
+        return const Placeholder();
+    }
+  }
 }

lib/main/framework/ui/side_navigation_bar.dart

@@ -1,7 +1,10 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:gap/gap.dart';
+import 'package:minecraft_server_installer/main/adapter/presentation/navigation_bloc.dart';
 import 'package:minecraft_server_installer/main/constants.dart';
 import 'package:minecraft_server_installer/main/framework/ui/strings.dart';
+import 'package:package_info_plus/package_info_plus.dart';
 
 class SideNavigationBar extends StatefulWidget {
   const SideNavigationBar({super.key});
@@ -12,10 +15,17 @@ class SideNavigationBar extends StatefulWidget {
 
 class _SideNavigationBarState extends State<SideNavigationBar> {
   bool _isExpanded = false;
-  NavigationItem _selectedNavigationItem = NavigationItem.basicConfiguration;
+  PackageInfo? _packageInfo;
 
   double get width => _isExpanded ? 360 : 80;
 
+  @override
+  void initState() {
+    super.initState();
+    PackageInfo.fromPlatform().then((packageInfo) =>
+        WidgetsBinding.instance.addPostFrameCallback((_) => setState(() => _packageInfo = packageInfo)));
+  }
+
   @override
   Widget build(BuildContext context) => AnimatedContainer(
         duration: const Duration(milliseconds: 300),
@@ -78,7 +88,8 @@ class _SideNavigationBarState extends State<SideNavigationBar> {
             _navigationButton(NavigationItem.about),
             const Spacer(),
             _animatedText(
-              text: 'Version 1.0.0',
+              text: 'Version ${_packageInfo?.version ?? ''}',
+              padding: EdgeInsets.zero,
               expandedKey: const ValueKey('expandedVersion'),
               collapsedKey: const ValueKey('collapsedVersion'),
               alignment: Alignment.bottomCenter,
@@ -116,7 +127,7 @@ class _SideNavigationBarState extends State<SideNavigationBar> {
                               child: leading,
                             ),
                           ),
-                        Expanded(
+                        Flexible(
                           child: Text(
                             text,
                             key: expandedKey,
@@ -134,14 +145,15 @@ class _SideNavigationBarState extends State<SideNavigationBar> {
       );
 
   Widget _navigationButton(NavigationItem navigationItem) {
-    final isSelected = _selectedNavigationItem == navigationItem;
+    final selectedNavigationItem = context.watch<NavigationBloc>().state;
+    final isSelected = selectedNavigationItem == navigationItem;
     final color = isSelected ? Colors.blue.shade900 : Colors.blueGrey.shade600;
     return Material(
       color: isSelected ? Colors.blueGrey.shade100 : Colors.transparent,
       borderRadius: BorderRadius.circular(8),
       child: InkWell(
         borderRadius: BorderRadius.circular(8),
-        onTap: () => setState(() => _selectedNavigationItem = navigationItem),
+        onTap: () => context.read<NavigationBloc>().add(NavigationChangedEvent(navigationItem)),
         child: Row(
           children: [
             Padding(
@@ -161,14 +173,30 @@ class _SideNavigationBarState extends State<SideNavigationBar> {
   }
 }
 
-enum NavigationItem {
-  basicConfiguration(iconData: Icons.dashboard_rounded, title: Strings.tabBasicConfiguration),
-  modConfiguration(iconData: Icons.extension, title: Strings.tabModConfiguration),
-  serverProperties(iconData: Icons.settings, title: Strings.tabServerPropertiesConfiguration),
-  about(iconData: Icons.info, title: Strings.tabAbout);
+extension _NavigationItemContent on NavigationItem {
+  String get title {
+    switch (this) {
+      case NavigationItem.basicConfiguration:
+        return Strings.tabBasicConfiguration;
+      case NavigationItem.modConfiguration:
+        return Strings.tabModConfiguration;
+      case NavigationItem.serverProperties:
+        return Strings.tabServerProperties;
+      case NavigationItem.about:
+        return Strings.tabAbout;
+    }
+  }
 
-  final IconData iconData;
-  final String title;
-
-  const NavigationItem({required this.iconData, required this.title});
+  IconData get iconData {
+    switch (this) {
+      case NavigationItem.basicConfiguration:
+        return Icons.dashboard_rounded;
+      case NavigationItem.modConfiguration:
+        return Icons.extension;
+      case NavigationItem.serverProperties:
+        return Icons.settings;
+      case NavigationItem.about:
+        return Icons.info;
+    }
+  }
 }

lib/main/framework/ui/strings.dart

@@ -10,7 +10,7 @@ abstract class Strings {
   static const buttonBrowse = '瀏覽';
   static const tabBasicConfiguration = '基本設定';
   static const tabModConfiguration = '模組設定';
-  static const tabServerPropertiesConfiguration = '伺服器選項';
+  static const tabServerProperties = '伺服器選項';
   static const tabAbout = '關於與說明';
   static const tabInstallationProgress = '安裝進度';
   static const tooltipEulaInfo = '點擊查看 EULA 條款';

pubspec.lock

@@ -232,6 +232,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
+  package_info_plus:
+    dependency: "direct main"
+    description:
+      name: package_info_plus
+      sha256: "7976bfe4c583170d6cdc7077e3237560b364149fcd268b5f53d95a991963b191"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.3.0"
+  package_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: package_info_plus_platform_interface
+      sha256: "6c935fb612dff8e3cc9632c2b301720c77450a126114126ffaafe28d2e87956c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.0"
   path:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.0.0+1
+version: "6.0.0-pre.1"
 
 environment:
   sdk: ">=3.6.0 <4.0.0"
@@ -39,6 +39,7 @@ dependencies:
   flutter_bloc: ^9.1.1
   gap: ^3.0.1
   http: ^1.4.0
+  package_info_plus: ^8.3.0
   path: ^1.9.1
   url_launcher: ^6.3.1
   window_manager: ^0.5.0