Add about page to Fluent UI

Workaround: on Linux, touch is recognized as mouse by Flutter,
so this enables scroll by dragging with mouse.

CHANGELOG.txt

@@ -1,3 +1,8 @@
+v2.7.10
+Add about page to Fluent UI.
+Add settings page, allowing changing between UIs.
+Add touch scrolling on Linux.
+
 v2.7.9
 Add Fluent UI for Windows and Linux.
 Add split view in landscape when viewing a train.

lib/components/cupertino_listtile.dart

@@ -5,39 +5,54 @@ class CupertinoListTile extends StatelessWidget {
   final Widget? title;
   final Widget? subtitle;
   final Widget? trailing;
+  final void Function()? onTap;
 
-  const CupertinoListTile({ Key? key, this.leading, this.title, this.subtitle, this.trailing, }) : super(key: key);
+  const CupertinoListTile({ super.key, this.leading, this.title, this.subtitle, this.trailing, this.onTap, });
 
   @override
   Widget build(BuildContext context) {
-    return Row(
-      mainAxisSize: MainAxisSize.max,
-      children: [
-        if (leading != null)
-          leading!,
-        Expanded(
-          child: Column(
-            mainAxisSize: MainAxisSize.min,
-            children: [
-              if (title != null)
-                title!,
-              if (subtitle != null)
-                CupertinoTheme(
-                  data: CupertinoTheme.of(context).copyWith(
-                    textTheme: CupertinoTextThemeData(
-                      textStyle: TextStyle(
-                        fontSize: CupertinoTheme.of(context).textTheme.textStyle.fontSize! - 2,
-                      )
-                    )
-                  ),
-                  child: subtitle!,
-                ),
-            ],
+    return GestureDetector(
+      onTap: onTap,
+      behavior: HitTestBehavior.opaque,
+      child: Row(
+        mainAxisSize: MainAxisSize.max,
+        children: [
+          if (leading != null)
+            Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: leading!,
+            ),
+          Expanded(
+            child: Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  if (title != null)
+                    title!,
+                  if (subtitle != null)
+                    CupertinoTheme(
+                      data: CupertinoTheme.of(context).copyWith(
+                        textTheme: CupertinoTextThemeData(
+                          textStyle: TextStyle(
+                            fontSize: CupertinoTheme.of(context).textTheme.textStyle.fontSize! - 2,
+                          )
+                        )
+                      ),
+                      child: subtitle!,
+                    ),
+                ],
+              ),
+            ),
           ),
-        ),
-        if (trailing != null)
-          trailing!,
-      ],
+          if (trailing != null)
+            Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: trailing!,
+            ),
+        ],
+      ),
     );
   }
 }

lib/main.dart

@@ -1,5 +1,8 @@
+import 'dart:io';
+
 import 'package:fluent_ui/fluent_ui.dart' as f;
 import 'package:flutter/cupertino.dart' as c;
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart' as m;
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
@@ -7,6 +10,7 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:info_tren/models.dart';
 import 'package:info_tren/pages/about/about_page.dart';
 import 'package:info_tren/pages/main/main_page.dart';
+import 'package:info_tren/pages/settings/setings_page.dart';
 import 'package:info_tren/pages/station_arrdep_page/select_station/select_station.dart';
 import 'package:info_tren/pages/station_arrdep_page/view_station/view_station.dart';
 import 'package:info_tren/pages/train_info_page/view_train/train_info.dart';
@@ -33,6 +37,9 @@ Map<String, WidgetBuilder> get routes => {
   AboutPage.routeName: (context) {
     return const AboutPage();
   },
+  SettingsPage.routeName: (context) {
+    return const SettingsPage();
+  },
   SelectTrainPage.routeName: (context) {
     return const SelectTrainPage();
   },
@@ -59,6 +66,36 @@ Map<String, WidgetBuilder> get routes => {
   },
 };
 
+class DragFluentScrollBevahior extends f.FluentScrollBehavior {
+  const DragFluentScrollBevahior();
+
+  @override
+  Set<PointerDeviceKind> get dragDevices => {
+    PointerDeviceKind.mouse,
+    PointerDeviceKind.touch,
+  };
+}
+
+class DragCupertinoScrollBevahior extends c.CupertinoScrollBehavior {
+  const DragCupertinoScrollBevahior();
+
+  @override
+  Set<PointerDeviceKind> get dragDevices => {
+    PointerDeviceKind.mouse,
+    PointerDeviceKind.touch,
+  };
+}
+
+class DragMaterialScrollBevahior extends m.MaterialScrollBehavior {
+  const DragMaterialScrollBevahior();
+
+  @override
+  Set<PointerDeviceKind> get dragDevices => {
+    PointerDeviceKind.mouse,
+    PointerDeviceKind.touch,
+  };
+}
+
 class StartPoint extends ConsumerWidget {
   final String appTitle = 'Info Tren';
 
@@ -83,6 +120,7 @@ class StartPoint extends ConsumerWidget {
             //   ),
             // ),
           ),
+          scrollBehavior: Platform.isLinux ? const DragCupertinoScrollBevahior() : null,
           routes: routes,
         ),
       );
@@ -95,6 +133,7 @@ class StartPoint extends ConsumerWidget {
           accentColor: f.Colors.blue,
         ),
         routes: routes,
+        scrollBehavior: Platform.isLinux ? const DragFluentScrollBevahior() : const f.FluentScrollBehavior(),
       );
     }
     else {
@@ -110,6 +149,7 @@ class StartPoint extends ConsumerWidget {
           useMaterial3: true,
           // fontFamily: 'Atkinson Hyperlegible',
         ),
+        scrollBehavior: Platform.isLinux ? const DragMaterialScrollBevahior() : null,
         routes: routes,
       );
     }

lib/models/ui_design.dart

@@ -4,6 +4,14 @@ enum UiDesign {
   FLUENT,
 }
 
+extension UIName on UiDesign {
+  String get userInterfaceName => (const {
+    UiDesign.MATERIAL: 'Material',
+    UiDesign.CUPERTINO: 'Cupertino',
+    UiDesign.FLUENT: 'Fluent',
+  })[this]!;
+}
+
 class UnmatchedUiDesignException implements Exception {
   final UiDesign uiDesign;
 

lib/pages/about/about_page.dart

@@ -3,6 +3,7 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:info_tren/api/releases.dart';
 import 'package:info_tren/models.dart';
 import 'package:info_tren/pages/about/about_page_cupertino.dart';
+import 'package:info_tren/pages/about/about_page_fluent.dart';
 import 'package:info_tren/pages/about/about_page_material.dart';
 import 'package:info_tren/providers.dart';
 import 'package:package_info_plus/package_info_plus.dart';
@@ -21,6 +22,8 @@ class AboutPage extends ConsumerWidget {
         return const AboutPageMaterial();
       case UiDesign.CUPERTINO:
         return const AboutPageCupertino();
+      case UiDesign.FLUENT:
+        return const AboutPageFluent();
       default:
         throw UnmatchedUiDesignException(uiDesign);
     }
@@ -31,7 +34,7 @@ abstract class AboutPageShared extends StatefulWidget {
   const AboutPageShared({super.key});
 }
 
-abstract class AboutPageState extends State<AboutPageShared> {
+abstract class AboutPageState<T extends AboutPageShared> extends State<T> {
   static const String download = String.fromEnvironment('DOWNLOAD');
 
   final String pageTitle = 'Despre aplicație';

lib/pages/about/about_page_cupertino.dart

@@ -3,14 +3,14 @@ import 'package:info_tren/components/cupertino_divider.dart';
 import 'package:info_tren/pages/about/about_page.dart';
 import 'package:url_launcher/url_launcher.dart';
 
-class AboutPageCupertino extends StatefulWidget {
+class AboutPageCupertino extends AboutPageShared {
   const AboutPageCupertino({super.key});
 
   @override
   State<AboutPageShared> createState() => AboutPageStateCupertino();
 }
 
-class AboutPageStateCupertino extends AboutPageState {
+class AboutPageStateCupertino extends AboutPageState<AboutPageCupertino> {
   @override
   Widget build(BuildContext context) {
     return CupertinoPageScaffold(

lib/pages/about/about_page_fluent.dart

@@ -0,0 +1,140 @@
+import 'package:fluent_ui/fluent_ui.dart';
+import 'package:flutter/services.dart';
+import 'package:info_tren/pages/about/about_page.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class AboutPageFluent extends AboutPageShared {
+  const AboutPageFluent({super.key});
+
+  @override
+  State<AboutPageShared> createState() => AboutPageStateFluent();
+}
+
+class AboutPageStateFluent extends AboutPageState<AboutPageFluent> {
+  @override
+  Widget build(BuildContext context) {
+    return NavigationView(
+      appBar: NavigationAppBar(
+        title: Text(pageTitle),
+      ),
+      content: SingleChildScrollView(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            Center(
+              child: Text(
+                'Info Tren',
+                style: FluentTheme.of(context).typography.display,
+              ),
+            ),
+            if (packageInfo != null)
+              Center(
+                child: Text(
+                  packageInfo!.packageName,
+                  style: FluentTheme.of(context).typography.caption,
+                ),
+              ),
+            // ListTile(
+            //   title: Text(versionTitleText),
+            //   subtitle: localChangelog.isEmpty ? null : Text(localChangelog.first.title),
+            // ),
+            const Divider(),
+            for (final log in mergedChangelogs) ...[
+              Padding(
+                padding: const EdgeInsets.fromLTRB(8, 8, 8, 0),
+                child: Row(
+                  crossAxisAlignment: CrossAxisAlignment.center,
+                  children: [
+                    Expanded(
+                      child: Text(
+                        log.version.toString(),
+                        style: FluentTheme.of(context).typography.title,
+                      ),
+                    ),
+                    if (localChangelog.isNotEmpty && log.version == localChangelog.first.version)
+                      Container(
+                        decoration: BoxDecoration(
+                          border: Border.all(
+                            color: FluentTheme.of(context).inactiveColor,
+                            width: 1,
+                          ),
+                          borderRadius: BorderRadius.circular(20),
+                        ),
+                        child: Padding(
+                          padding: const EdgeInsets.all(4),
+                          child: Text(
+                            currentVersionText,
+                            style: const TextStyle(
+                              inherit: true,
+                            ),
+                          ),
+                        ),
+                      ),
+                    if (remoteChangelog.isNotEmpty && log.version == remoteChangelog.first.version && (localChangelog.isEmpty || localChangelog.first.version != log.version))
+                      Container(
+                        decoration: BoxDecoration(
+                          border: Border.all(
+                            color: Colors.green,
+                            width: 1,
+                          ),
+                          borderRadius: BorderRadius.circular(20),
+                        ),
+                        child: Padding(
+                          padding: const EdgeInsets.all(4),
+                          child: Text(
+                            latestVersionText,
+                            style: TextStyle(
+                              inherit: true,
+                              color: Colors.green,
+                            ),
+                          ),
+                        ),
+                      ),
+                    if (AboutPageState.download == 'apk' && log.apkLink != null)
+                      GestureDetector(
+                        onSecondaryTap: () {
+                          Clipboard.setData(ClipboardData(text: log.apkLink!.toString()));
+                          // ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
+                          //   content: Text('Link copied to clipboard'),
+                          // ));
+                        },
+                        onLongPress: () {
+                          Clipboard.setData(ClipboardData(text: log.apkLink!.toString()));
+                          // ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
+                          //   content: Text('Link copied to clipboard'),
+                          // ));
+                        },
+                        onTap: () {
+                          launchUrl(
+                            log.apkLink!,
+                            mode: LaunchMode.externalApplication,
+                          );
+                        },
+                        behavior: HitTestBehavior.translucent,
+                        child: const Tooltip(
+                          message: 'Download APK',
+                          child: Padding(
+                            padding: EdgeInsets.all(4),
+                            child: Icon(FluentIcons.download),
+                          ),
+                        ),
+                      ),
+                  ],
+                ),
+              ),
+              Padding(
+                padding: const EdgeInsets.all(8.0),
+                child: RichText(
+                  text: TextSpan(
+                    text: log.description,
+                  ),
+                ),
+              ),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/pages/about/about_page_material.dart

@@ -3,14 +3,14 @@ import 'package:flutter/services.dart';
 import 'package:info_tren/pages/about/about_page.dart';
 import 'package:url_launcher/url_launcher.dart';
 
-class AboutPageMaterial extends StatefulWidget {
+class AboutPageMaterial extends AboutPageShared {
   const AboutPageMaterial({super.key});
 
   @override
   State<AboutPageShared> createState() => AboutPageStateMaterial();
 }
 
-class AboutPageStateMaterial extends AboutPageState {
+class AboutPageStateMaterial extends AboutPageState<AboutPageMaterial> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -138,4 +138,4 @@ class AboutPageStateMaterial extends AboutPageState {
       ),
     );
   }
-}
+}

lib/pages/main/main_page.dart

@@ -5,6 +5,7 @@ import 'package:info_tren/pages/about/about_page.dart';
 import 'package:info_tren/pages/main/main_page_cupertino.dart';
 import 'package:info_tren/pages/main/main_page_fluent.dart';
 import 'package:info_tren/pages/main/main_page_material.dart';
+import 'package:info_tren/pages/settings/setings_page.dart';
 import 'package:info_tren/pages/station_arrdep_page/select_station/select_station.dart';
 import 'package:info_tren/pages/train_info_page/select_train/select_train.dart';
 import 'package:info_tren/providers.dart';
@@ -36,6 +37,12 @@ abstract class MainPageShared extends StatelessWidget {
   const MainPageShared({super.key});
 
   List<MainPageAction> get popupMenu => [
+    MainPageAction(
+      name: 'Setări',
+      action: (context) {
+        Navigator.of(context).pushNamed(SettingsPage.routeName);
+      },
+    ),
     MainPageAction(
       name: 'Despre aplicație',
       action: (context) {
@@ -85,5 +92,9 @@ class MainPageAction {
   final String? description;
   final void Function(BuildContext context)? action;
 
-  MainPageAction({required this.name, this.action, this.description});
+  MainPageAction({
+    required this.name,
+    this.action,
+    this.description,
+  });
 }

lib/pages/main/main_page_fluent.dart

@@ -10,6 +10,22 @@ class MainPageFluent extends MainPageShared {
       appBar: NavigationAppBar(
         automaticallyImplyLeading: false,
         title: Text(pageTitle),
+        actions: Row(
+          mainAxisSize: MainAxisSize.min,
+          children: popupMenu.map((i) => Center(
+            child: SizedBox(
+              width: 32,
+              height: 32,
+              child: IconButton(
+                icon: Icon({
+                  'Setări': FluentIcons.settings,
+                  'Despre aplicație': FluentIcons.info,
+                }[i.name]),
+                onPressed: i.action != null ? () => i.action!(context) : null,
+              ),
+            ),
+          )).toList(),
+        ),
         // centerTitle: true,
         // actions: [
         //   PopupMenuButton<int>(

lib/pages/settings/setings_page.dart

@@ -0,0 +1,37 @@
+import 'package:flutter/widgets.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:info_tren/models.dart';
+import 'package:info_tren/pages/settings/settings_page_cupertino.dart';
+import 'package:info_tren/pages/settings/settings_page_fluent.dart';
+import 'package:info_tren/pages/settings/settings_page_material.dart';
+import 'package:info_tren/providers.dart';
+
+class SettingsPage extends ConsumerWidget {
+  const SettingsPage({super.key,});
+
+  static const String routeName = '/settings';
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final uiDesign = ref.watch(uiDesignProvider);
+
+    switch (uiDesign) {
+      case UiDesign.MATERIAL:
+        return const SettingsPageMaterial();
+      case UiDesign.CUPERTINO:
+        return const SettingsPageCupertino();
+      case UiDesign.FLUENT:
+        return const SettingsPageFluent();
+      default:
+        throw UnmatchedUiDesignException(uiDesign);
+    }
+  }
+}
+
+abstract class SettingsPageShared extends StatelessWidget {
+  final String pageTitle = 'Setări';
+  final String appearanceTitle = 'Aspect';
+
+  const SettingsPageShared({super.key});
+
+}

lib/pages/settings/settings_page_cupertino.dart

@@ -0,0 +1,77 @@
+import 'package:flutter/cupertino.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:info_tren/components/cupertino_listtile.dart';
+import 'package:info_tren/models.dart';
+import 'package:info_tren/pages/settings/setings_page.dart';
+import 'package:info_tren/providers.dart';
+
+class SettingsPageCupertino extends SettingsPageShared {
+  const SettingsPageCupertino({super.key,});
+
+  Future<T?> singleChoice<T>({required BuildContext context, required List<T> choices, required String Function(T) labelBuilder, String? title}) async {
+    return await showCupertinoModalPopup<T>(
+      context: context,
+      builder: (context) {
+        return CupertinoActionSheet(
+          title: title != null ? Text(title) : null,
+          actions: choices.map((c) => CupertinoActionSheetAction(
+            onPressed: () {
+              Navigator.of(context).pop(c);
+            },
+            child: Text(labelBuilder(c)),
+          )).toList(),
+          cancelButton: CupertinoActionSheetAction(
+            child: const Text('Anulare'),
+            onPressed: () {
+              Navigator.of(context).pop();
+            },
+          ),
+        );
+      },
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        previousPageTitle: 'Info Tren',
+        middle: Text(pageTitle),
+      ),
+      child: Builder(
+        builder: (context) {
+          final mq = MediaQuery.of(context);
+          return SingleChildScrollView(
+            child: Column(
+              children: [
+                SizedBox(
+                  height: mq.padding.top,
+                ),
+                Consumer(
+                  builder: (context, ref, _) {
+                    final currentUiDesign = ref.watch(uiDesignProvider);
+                    return CupertinoListTile(
+                      title: Text(appearanceTitle),
+                      trailing: Text(currentUiDesign.userInterfaceName),
+                      onTap: () async {
+                        final choice = await singleChoice(
+                          context: context,
+                          choices: UiDesign.values,
+                          labelBuilder: (UiDesign ud) => ud.userInterfaceName,
+                          title: appearanceTitle,
+                        );
+                        if (choice != null) {
+                          ref.read(uiDesignProvider.notifier).set(choice);
+                        }
+                      },
+                    );
+                  },
+                ),
+              ],
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

lib/pages/settings/settings_page_fluent.dart

@@ -0,0 +1,42 @@
+import 'package:fluent_ui/fluent_ui.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:info_tren/models.dart';
+import 'package:info_tren/pages/settings/setings_page.dart';
+import 'package:info_tren/providers.dart';
+
+class SettingsPageFluent extends SettingsPageShared {
+  const SettingsPageFluent({super.key,});
+
+  @override
+  Widget build(BuildContext context) {
+    return NavigationView(
+      appBar: NavigationAppBar(
+        title: Text(pageTitle),
+      ),
+      content: SingleChildScrollView(
+        child: Column(
+          children: [
+            Consumer(
+              builder: (context, ref, _) {
+                final currentUiDesign = ref.watch(uiDesignProvider);
+                return ListTile(
+                  title: Text(appearanceTitle),
+                  trailing: ComboBox<UiDesign>(
+                    items: UiDesign.values.map((d) => ComboBoxItem(
+                      value: d,
+                      child: Text(d.userInterfaceName),
+                    )).toList(),
+                    value: currentUiDesign,
+                    onChanged: (newUiDesign) {
+                      ref.read(uiDesignProvider.notifier).set(newUiDesign);
+                    },
+                  ),
+                );
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/pages/settings/settings_page_material.dart

@@ -0,0 +1,43 @@
+import 'package:flutter/material.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:info_tren/models.dart';
+import 'package:info_tren/pages/settings/setings_page.dart';
+import 'package:info_tren/providers.dart';
+
+class SettingsPageMaterial extends SettingsPageShared {
+  const SettingsPageMaterial({super.key,});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(pageTitle),
+        centerTitle: true,
+      ),
+      body: SingleChildScrollView(
+        child: Column(
+          children: [
+            Consumer(
+              builder: (context, ref, _) {
+                final currentUiDesign = ref.watch(uiDesignProvider);
+                return ListTile(
+                  title: Text(appearanceTitle),
+                  trailing: DropdownButton<UiDesign>(
+                    items: UiDesign.values.map((d) => DropdownMenuItem(
+                      value: d,
+                      child: Text(d.userInterfaceName),
+                    )).toList(),
+                    value: currentUiDesign,
+                    onChanged: (newUiDesign) {
+                      ref.read(uiDesignProvider.notifier).set(newUiDesign);
+                    },
+                  ),
+                );
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/providers.dart

@@ -13,22 +13,30 @@ final sharedPreferencesProvider = Provider<SharedPreferences>(
   (_) => throw UnimplementedError('Please override in ProviderScope'),
 );
 
-final uiDesignProvider = Provider((ref) {
-  final sharedPreferences = ref.watch(sharedPreferencesProvider);
-  final stored = sharedPreferences.getString('uiDesign');
-  final design = UiDesign.values.where((element) => element.name == stored).firstOrNull ?? defaultUiDesign;
-  return design;
-});
-Future<void> setUiDesign(Ref ref, UiDesign? design) async {
-  final sharedPreferences = ref.watch(sharedPreferencesProvider);
-  if (design != null) {
-    await sharedPreferences.setString('uiDesign', design.name);
+class UiDesignNotifier extends StateNotifier<UiDesign> {
+  final SharedPreferences sharedPreferences;
+
+  UiDesignNotifier({required this.sharedPreferences,}) : super(UiDesign.MATERIAL) {
+    final stored = sharedPreferences.getString('uiDesign');
+    final design = UiDesign.values.where((element) => element.name == stored).firstOrNull ?? defaultUiDesign;
+    state = design;
   }
-  else {
-    await sharedPreferences.remove('uiDesign');
+
+  void set(UiDesign? design) async {
+    if (design != null) {
+      await sharedPreferences.setString('uiDesign', design.name);
+    }
+    else {
+      await sharedPreferences.remove('uiDesign');
+    }
+    state = design ?? defaultUiDesign;
   }
-  ref.invalidate(uiDesignProvider);
 }
+final uiDesignProvider = StateNotifierProvider<UiDesignNotifier, UiDesign>(
+  (ref) => UiDesignNotifier(
+    sharedPreferences: ref.watch(sharedPreferencesProvider),
+  ),
+);
 
 final trainInfoArgumentsProvider = Provider<TrainInfoArguments>(
   (_) => throw UnimplementedError('Please override in ProviderScope'),

pubspec.yaml

@@ -11,7 +11,7 @@ description: O aplicație de vizualizare a datelor puse la dispoziție de Inform
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 2.7.9
+version: 2.7.10
 
 environment:
   sdk: ">=2.17.0 <3.0.0"