Update SDK constraints and code for Dart 3.12

examples/_animation/basic_hero_animation/pubspec.yaml

@@ -5,7 +5,7 @@ description: >-
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/_animation/basic_radial_hero_animation/pubspec.yaml

@@ -6,7 +6,7 @@ description: >-
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/_animation/basic_staggered_animation/pubspec.yaml

@@ -4,7 +4,7 @@ description: An introductory example to staggered animations.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/_animation/hero_animation/pubspec.yaml

@@ -4,7 +4,7 @@ description: Shows how to create a simple Hero transition.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/_animation/radial_hero_animation/pubspec.yaml

@@ -6,7 +6,7 @@ description: >-
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/_animation/radial_hero_animation_animate_rectclip/pubspec.yaml

@@ -6,7 +6,7 @@ description: >-
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/_animation/staggered_pic_selection/pubspec.yaml

@@ -4,7 +4,7 @@ description: A more complex staggered animation example.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/accessibility/pubspec.yaml

@@ -5,7 +5,7 @@ publish_to: none
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/analysis_options.yaml

@@ -37,6 +37,7 @@ linter:
     - prefer_final_fields
     - prefer_relative_imports
     - prefer_single_quotes
+    - simple_directive_paths
     - simplify_variable_pattern
     - sort_unnamed_constructors_first
     - specify_nonobvious_property_types

examples/animation/animate0/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/animation/animate1/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/animation/animate2/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/animation/animate3/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/animation/animate4/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/animation/animate5/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/app-architecture/command/pubspec.yaml

@@ -3,7 +3,7 @@ description: Example for command cookbook recipe
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/app-architecture/offline_first/lib/data/repositories/user_profile_repository.dart

@@ -6,10 +6,9 @@ import '../services/database_service.dart';
 
 class UserProfileRepository {
   UserProfileRepository({
-    required ApiClientService apiClientService,
-    required DatabaseService databaseService,
-  }) : _apiClientService = apiClientService,
-       _databaseService = databaseService {
+    required this._apiClientService,
+    required this._databaseService,
+  }) {
     // #docregion Timer
     Timer.periodic(const Duration(minutes: 5), (timer) => sync());
     // #enddocregion Timer

examples/app-architecture/offline_first/lib/ui/user_profile/user_profile_viewmodel.dart

@@ -5,8 +5,7 @@ import '../../domain/model/user_profile.dart';
 // #docregion UserProfileViewModel
 class UserProfileViewModel extends ChangeNotifier {
   // #enddocregion UserProfileViewModel
-  UserProfileViewModel({required UserProfileRepository userProfileRepository})
-    : _userProfileRepository = userProfileRepository {
+  UserProfileViewModel({required this._userProfileRepository}) {
     load();
   }
 

examples/app-architecture/offline_first/pubspec.yaml

@@ -3,7 +3,7 @@ description: Example for offline_first cookbook recipe
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/app-architecture/optimistic_state/pubspec.yaml

@@ -3,7 +3,7 @@ description: Example for optimistic_state cookbook recipe
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/app-architecture/result/pubspec.yaml

@@ -3,7 +3,7 @@ description: Example for result cookbook recipe
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/app-architecture/todo_data_service/lib/data/repositories/todo_repository.dart

@@ -4,7 +4,7 @@ import '../services/database_service.dart';
 
 // #docregion TodoRepository
 class TodoRepository {
-  TodoRepository({required DatabaseService database}) : _database = database;
+  TodoRepository({required this._database});
 
   final DatabaseService _database;
 

examples/app-architecture/todo_data_service/lib/ui/todo_list/viewmodel/todo_list_viewmodel.dart

@@ -6,8 +6,7 @@ import '../../../utils/command.dart';
 import '../../../utils/result.dart';
 
 class TodoListViewModel extends ChangeNotifier {
-  TodoListViewModel({required TodoRepository todoRepository})
-    : _todoRepository = todoRepository {
+  TodoListViewModel({required this._todoRepository}) {
     load = Command0<void>(_load)..execute();
     add = Command1<void, String>(_add);
     delete = Command1<void, int>(_delete);

examples/app-architecture/todo_data_service/pubspec.yaml

@@ -3,7 +3,7 @@ description: Example for key_value_data cookbook recipe
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/animation/animated_container/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for cookbook.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/animation/opacity_animation/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for cookbook.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/animation/page_route_animation/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for cookbook.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/animation/physics_simulation/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for cookbook.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/cupertino_sheets/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for cupertino sheets cookbook recipe.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/drawer/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for drawer cookbook recipe.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/fonts/pubspec.yaml

@@ -5,7 +5,7 @@ version: 1.0.0+1
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/orientation/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for orientation cookbook recipe.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/package_fonts/pubspec.yaml

@@ -5,7 +5,7 @@ version: 1.0.0+1
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/snackbars/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for snackbars cookbook recipe.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/tabs/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for tabs cookbook recipe.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/design/themes/pubspec.yaml

@@ -3,7 +3,7 @@ description: Sample code for themes cookbook recipe.
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/effects/download_button/lib/main.dart

@@ -130,12 +130,10 @@ abstract class DownloadController implements ChangeNotifier {
 class SimulatedDownloadController extends DownloadController
     with ChangeNotifier {
   SimulatedDownloadController({
-    DownloadStatus downloadStatus = DownloadStatus.notDownloaded,
-    double progress = 0.0,
-    required VoidCallback onOpenDownload,
-  }) : _downloadStatus = downloadStatus,
-       _progress = progress,
-       _onOpenDownload = onOpenDownload;
+    this._downloadStatus = DownloadStatus.notDownloaded,
+    this._progress = 0.0,
+    required this._onOpenDownload,
+  });
 
   DownloadStatus _downloadStatus;
   @override

examples/cookbook/effects/download_button/pubspec.yaml

@@ -5,7 +5,7 @@ version: 1.0.0+1
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/effects/drag_a_widget/pubspec.yaml

@@ -7,7 +7,7 @@ version: 1.0.0+1
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/effects/expandable_fab/pubspec.yaml

@@ -6,7 +6,7 @@ version: 1.0.0+1
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/effects/nested_nav/pubspec.yaml

@@ -7,7 +7,7 @@ version: 1.0.0+1
 
 resolution: workspace
 environment:
-  sdk: ^3.11.0
+  sdk: ^3.12.0-0
 
 dependencies:
   flutter:

examples/cookbook/effects/parallax_scrolling/lib/main.dart

@@ -223,8 +223,7 @@ class ParallaxParentData extends ContainerBoxParentData<RenderBox> {}
 
 class RenderParallax extends RenderBox
     with RenderObjectWithChildMixin<RenderBox>, RenderProxyBoxMixin {
-  RenderParallax({required ScrollableState scrollable})
-    : _scrollable = scrollable;
+  RenderParallax({required this._scrollable});
 
   ScrollableState _scrollable;