Final chapter: migrate api doc samples to super-parameters (#104007)

examples/api/analysis_options.yaml

@@ -6,7 +6,3 @@ linter:
   rules:
     # Samples want to print things pretty often.
     avoid_print: false
-    # TODO(goderbauer): enable when super params are more established and
-    #   seeing them in the API samples is no longer surprising,
-    #   https://github.com/flutter/flutter/issues/101068
-    use_super_parameters: false

examples/api/lib/animation/curves/curve2_d.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -43,12 +43,12 @@ final CatmullRomSpline path = CatmullRomSpline(
 
 class FollowCurve2D extends StatefulWidget {
   const FollowCurve2D({
-    Key? key,
+    super.key,
     required this.path,
     this.curve = Curves.easeInOut,
     required this.child,
     this.duration = const Duration(seconds: 1),
-  }) : super(key: key);
+  });
 
   final Curve2D path;
   final Curve curve;
@@ -97,7 +97,7 @@ class _FollowCurve2DState extends State<FollowCurve2D>
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/activity_indicator/cupertino_activity_indicator.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoIndicatorApp());
 
 class CupertinoIndicatorApp extends StatelessWidget {
-  const CupertinoIndicatorApp({Key? key}) : super(key: key);
+  const CupertinoIndicatorApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoIndicatorApp extends StatelessWidget {
 }
 
 class CupertinoIndicatorExample extends StatelessWidget {
-  const CupertinoIndicatorExample({Key? key}) : super(key: key);
+  const CupertinoIndicatorExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/bottom_tab_bar/cupertino_tab_bar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoTabBarApp());
 
 class CupertinoTabBarApp extends StatelessWidget {
-  const CupertinoTabBarApp({Key? key}) : super(key: key);
+  const CupertinoTabBarApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoTabBarApp extends StatelessWidget {
 }
 
 class CupertinoTabBarExample extends StatelessWidget {
-  const CupertinoTabBarExample({Key? key}) : super(key: key);
+  const CupertinoTabBarExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/button/cupertino_button.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoButtonApp());
 
 class CupertinoButtonApp extends StatelessWidget {
-  const CupertinoButtonApp({Key? key}) : super(key: key);
+  const CupertinoButtonApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoButtonApp extends StatelessWidget {
 }
 
 class CupertinoButtonExample extends StatelessWidget {
-  const CupertinoButtonExample({Key? key}) : super(key: key);
+  const CupertinoButtonExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/context_menu/cupertino_context_menu.0.dart

@@ -10,7 +10,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const ContextMenuApp());
 
 class ContextMenuApp extends StatelessWidget {
-  const ContextMenuApp({Key? key}) : super(key: key);
+  const ContextMenuApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -22,7 +22,7 @@ class ContextMenuApp extends StatelessWidget {
 }
 
 class ContextMenuExample extends StatelessWidget {
-  const ContextMenuExample({Key? key}) : super(key: key);
+  const ContextMenuExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/date_picker/cupertino_date_picker.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const DatePickerApp());
 
 class DatePickerApp extends StatelessWidget {
-  const DatePickerApp({Key? key}) : super(key: key);
+  const DatePickerApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class DatePickerApp extends StatelessWidget {
 }
 
 class DatePickerExample extends StatefulWidget {
-  const DatePickerExample({Key? key}) : super(key: key);
+  const DatePickerExample({super.key});
 
   @override
   State<DatePickerExample> createState() => _DatePickerExampleState();

examples/api/lib/cupertino/date_picker/cupertino_timer_picker.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const TimerPickerApp());
 
 class TimerPickerApp extends StatelessWidget {
-  const TimerPickerApp({Key? key}) : super(key: key);
+  const TimerPickerApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class TimerPickerApp extends StatelessWidget {
 }
 
 class TimerPickerExample extends StatefulWidget {
-  const TimerPickerExample({Key? key}) : super(key: key);
+  const TimerPickerExample({super.key});
 
   @override
   State<TimerPickerExample> createState() => _TimerPickerExampleState();

examples/api/lib/cupertino/dialog/cupertino_action_sheet.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const ActionSheetApp());
 
 class ActionSheetApp extends StatelessWidget {
-  const ActionSheetApp({Key? key}) : super(key: key);
+  const ActionSheetApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class ActionSheetApp extends StatelessWidget {
 }
 
 class ActionSheetExample extends StatelessWidget {
-  const ActionSheetExample({Key? key}) : super(key: key);
+  const ActionSheetExample({super.key});
 
   // This shows a CupertinoModalPopup which hosts a CupertinoActionSheet.
   void _showActionSheet(BuildContext context) {

examples/api/lib/cupertino/dialog/cupertino_alert_dialog.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const AlertDialogApp());
 
 class AlertDialogApp extends StatelessWidget {
-  const AlertDialogApp({Key? key}) : super(key: key);
+  const AlertDialogApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class AlertDialogApp extends StatelessWidget {
 }
 
 class AlertDialogExample extends StatelessWidget {
-  const AlertDialogExample({Key? key}) : super(key: key);
+  const AlertDialogExample({super.key});
 
   // This shows a CupertinoModalPopup which hosts a CupertinoAlertDialog.
   void _showAlertDialog(BuildContext context) {

examples/api/lib/cupertino/form_row/cupertino_form_row.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoFormRowApp());
 
 class CupertinoFormRowApp extends StatelessWidget {
-  const CupertinoFormRowApp({Key? key}) : super(key: key);
+  const CupertinoFormRowApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoFormRowApp extends StatelessWidget {
 }
 
 class CupertinoFormRowExample extends StatefulWidget {
-  const CupertinoFormRowExample({Key? key}) : super(key: key);
+  const CupertinoFormRowExample({super.key});
 
   @override
   State<CupertinoFormRowExample> createState() => _CupertinoFormRowExampleState();
@@ -114,11 +114,11 @@ class _CupertinoFormRowExampleState extends State<CupertinoFormRowExample> {
 
 class PrefixWidget extends StatelessWidget {
   const PrefixWidget({
-    Key? key,
+    super.key,
     required this.icon,
     required this.title,
     required this.color,
-  }) : super(key: key);
+  });
 
   final IconData icon;
   final String title;

examples/api/lib/cupertino/nav_bar/cupertino_navigation_bar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const NavBarApp());
 
 class NavBarApp extends StatelessWidget {
-  const NavBarApp({Key? key}) : super(key: key);
+  const NavBarApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class NavBarApp extends StatelessWidget {
 }
 
 class NavBarExample extends StatefulWidget {
-  const NavBarExample({Key? key}) : super(key: key);
+  const NavBarExample({super.key});
 
   @override
   State<NavBarExample> createState() => _NavBarExampleState();

examples/api/lib/cupertino/nav_bar/cupertino_sliver_nav_bar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const SliverNavBarApp());
 
 class SliverNavBarApp extends StatelessWidget {
-  const SliverNavBarApp({Key? key}) : super(key: key);
+  const SliverNavBarApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class SliverNavBarApp extends StatelessWidget {
 }
 
 class SliverNavBarExample extends StatelessWidget {
-  const SliverNavBarExample({Key? key}) : super(key: key);
+  const SliverNavBarExample({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -63,7 +63,7 @@ class SliverNavBarExample extends StatelessWidget {
 }
 
 class NextPage extends StatelessWidget {
-  const NextPage({ Key? key }) : super(key: key);
+  const NextPage({ super.key });
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/page_scaffold/cupertino_page_scaffold.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const PageScaffoldApp());
 
 class PageScaffoldApp extends StatelessWidget {
-  const PageScaffoldApp({Key? key}) : super(key: key);
+  const PageScaffoldApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class PageScaffoldApp extends StatelessWidget {
 }
 
 class PageScaffoldExample extends StatefulWidget {
-  const PageScaffoldExample({Key? key}) : super(key: key);
+  const PageScaffoldExample({super.key});
 
   @override
   State<PageScaffoldExample> createState() => _PageScaffoldExampleState();

examples/api/lib/cupertino/picker/cupertino_picker.0.dart

@@ -19,7 +19,7 @@ const List<String> _fruitNames = <String>[
 void main() => runApp(const CupertinoPickerApp());
 
 class CupertinoPickerApp extends StatelessWidget {
-  const CupertinoPickerApp({Key? key}) : super(key: key);
+  const CupertinoPickerApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -30,7 +30,7 @@ class CupertinoPickerApp extends StatelessWidget {
   }
 }
 class CupertinoPickerExample extends StatefulWidget {
-  const CupertinoPickerExample({Key? key}) : super(key: key);
+  const CupertinoPickerExample({super.key});
 
   @override
   State<CupertinoPickerExample> createState() => _CupertinoPickerExampleState();

examples/api/lib/cupertino/refresh/cupertino_sliver_refresh_control.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const RefreshControlApp());
 
 class RefreshControlApp extends StatelessWidget {
-  const RefreshControlApp({Key? key}) : super(key: key);
+  const RefreshControlApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class RefreshControlApp extends StatelessWidget {
 }
 
 class RefreshControlExample extends StatefulWidget {
-  const RefreshControlExample({Key? key}) : super(key: key);
+  const RefreshControlExample({super.key});
 
   @override
   State<RefreshControlExample> createState() => _RefreshControlExampleState();

examples/api/lib/cupertino/route/show_cupertino_dialog.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoDialogApp());
 
 class CupertinoDialogApp extends StatelessWidget {
-  const CupertinoDialogApp({Key? key}) : super(key: key);
+  const CupertinoDialogApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -22,7 +22,7 @@ class CupertinoDialogApp extends StatelessWidget {
 }
 
 class CupertinoDialogExample extends StatelessWidget {
-  const CupertinoDialogExample({Key? key}) : super(key: key);
+  const CupertinoDialogExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/route/show_cupertino_modal_popup.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const ModalPopupApp());
 
 class ModalPopupApp extends StatelessWidget {
-  const ModalPopupApp({Key? key}) : super(key: key);
+  const ModalPopupApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -22,7 +22,7 @@ class ModalPopupApp extends StatelessWidget {
 }
 
 class ModalPopupExample extends StatelessWidget {
-  const ModalPopupExample({Key? key}) : super(key: key);
+  const ModalPopupExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/scrollbar/cupertino_scrollbar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const ScrollbarApp());
 
 class ScrollbarApp extends StatelessWidget {
-  const ScrollbarApp({Key? key}) : super(key: key);
+  const ScrollbarApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class ScrollbarApp extends StatelessWidget {
 }
 
 class ScrollbarExample extends StatelessWidget {
-  const ScrollbarExample({Key? key}) : super(key: key);
+  const ScrollbarExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/cupertino/scrollbar/cupertino_scrollbar.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const ScrollbarApp());
 
 class ScrollbarApp extends StatelessWidget {
-  const ScrollbarApp({Key? key}) : super(key: key);
+  const ScrollbarApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class ScrollbarApp extends StatelessWidget {
 }
 
 class ScrollbarExample extends StatefulWidget {
-  const ScrollbarExample({Key? key}) : super(key: key);
+  const ScrollbarExample({super.key});
 
   @override
   State<ScrollbarExample> createState() => _ScrollbarExampleState();

examples/api/lib/cupertino/search_field/cupertino_search_field.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const SearchTextFieldApp());
 
 class SearchTextFieldApp extends StatelessWidget {
-  const SearchTextFieldApp({Key? key}) : super(key: key);
+  const SearchTextFieldApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class SearchTextFieldApp extends StatelessWidget {
 }
 
 class SearchTextFieldExample extends StatefulWidget {
-  const SearchTextFieldExample({Key? key}) : super(key: key);
+  const SearchTextFieldExample({super.key});
 
   @override
   State<SearchTextFieldExample> createState() => _SearchTextFieldExampleState();

examples/api/lib/cupertino/search_field/cupertino_search_field.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const SearchTextFieldApp());
 
 class SearchTextFieldApp extends StatelessWidget {
-  const SearchTextFieldApp({Key? key}) : super(key: key);
+  const SearchTextFieldApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class SearchTextFieldApp extends StatelessWidget {
 }
 
 class SearchTextFieldExample extends StatefulWidget {
-  const SearchTextFieldExample({Key? key}) : super(key: key);
+  const SearchTextFieldExample({super.key});
 
   @override
   State<SearchTextFieldExample> createState() => _SearchTextFieldExampleState();
@@ -60,9 +60,9 @@ class _SearchTextFieldExampleState extends State<SearchTextFieldExample> {
 
 class SearchTextField extends StatelessWidget {
   const SearchTextField({
-    Key? key,
+    super.key,
     required this.fieldValue,
-  }) : super(key: key);
+  });
 
   final ValueChanged<String> fieldValue;
 

examples/api/lib/cupertino/segmented_control/cupertino_segmented_control.0.dart

@@ -17,7 +17,7 @@ Map<Sky, Color> skyColors = <Sky, Color> {
 void main() => runApp(const SegmentedControlApp());
 
 class SegmentedControlApp extends StatelessWidget {
-  const SegmentedControlApp({Key? key}) : super(key: key);
+  const SegmentedControlApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -29,7 +29,7 @@ class SegmentedControlApp extends StatelessWidget {
 }
 
 class SegmentedControlExample extends StatefulWidget {
-  const SegmentedControlExample({Key? key}) : super(key: key);
+  const SegmentedControlExample({super.key});
 
   @override
   State<SegmentedControlExample> createState() => _SegmentedControlExampleState();

examples/api/lib/cupertino/segmented_control/cupertino_sliding_segmented_control.0.dart

@@ -17,7 +17,7 @@ Map<Sky, Color> skyColors = <Sky, Color> {
 void main() => runApp(const SegmentedControlApp());
 
 class SegmentedControlApp extends StatelessWidget {
-  const SegmentedControlApp({Key? key}) : super(key: key);
+  const SegmentedControlApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -29,7 +29,7 @@ class SegmentedControlApp extends StatelessWidget {
 }
 
 class SegmentedControlExample extends StatefulWidget {
-  const SegmentedControlExample({Key? key}) : super(key: key);
+  const SegmentedControlExample({super.key});
 
   @override
   State<SegmentedControlExample> createState() => _SegmentedControlExampleState();

examples/api/lib/cupertino/slider/cupertino_slider.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoSliderApp());
 
 class CupertinoSliderApp extends StatelessWidget {
-  const CupertinoSliderApp({Key? key}) : super(key: key);
+  const CupertinoSliderApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoSliderApp extends StatelessWidget {
 }
 
 class CupertinoSliderExample extends StatefulWidget {
-  const CupertinoSliderExample({Key? key}) : super(key: key);
+  const CupertinoSliderExample({super.key});
 
   @override
   State<CupertinoSliderExample> createState() => _CupertinoSliderExampleState();

examples/api/lib/cupertino/switch/cupertino_switch.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoSwitchApp());
 
 class CupertinoSwitchApp extends StatelessWidget {
-  const CupertinoSwitchApp({Key? key}) : super(key: key);
+  const CupertinoSwitchApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoSwitchApp extends StatelessWidget {
 }
 
 class CupertinoSwitchExample extends StatefulWidget {
-  const CupertinoSwitchExample({Key? key}) : super(key: key);
+  const CupertinoSwitchExample({super.key});
 
   @override
   State<CupertinoSwitchExample> createState() => _CupertinoSwitchExampleState();

examples/api/lib/cupertino/tab_scaffold/cupertino_tab_controller.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const TabControllerApp());
 
 class TabControllerApp extends StatelessWidget {
-  const TabControllerApp({Key? key}) : super(key: key);
+  const TabControllerApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class TabControllerApp extends StatelessWidget {
 }
 
 class TabControllerExample extends StatefulWidget {
-  const TabControllerExample({Key? key}) : super(key: key);
+  const TabControllerExample({super.key});
 
   @override
   State<TabControllerExample> createState() => _TabControllerExampleState();

examples/api/lib/cupertino/tab_scaffold/cupertino_tab_scaffold.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const TabScaffoldApp());
 
 class TabScaffoldApp extends StatelessWidget {
-  const TabScaffoldApp({Key? key}) : super(key: key);
+  const TabScaffoldApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class TabScaffoldApp extends StatelessWidget {
 }
 
 class TabScaffoldExample extends StatefulWidget {
-  const TabScaffoldExample({Key? key}) : super(key: key);
+  const TabScaffoldExample({super.key});
 
   @override
   State<TabScaffoldExample> createState() => _TabScaffoldExampleState();

examples/api/lib/cupertino/text_field/cupertino_text_field.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const CupertinoTextFieldApp());
 
 class CupertinoTextFieldApp extends StatelessWidget {
-  const CupertinoTextFieldApp({Key? key}) : super(key: key);
+  const CupertinoTextFieldApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class CupertinoTextFieldApp extends StatelessWidget {
 }
 
 class CupertinoTextFieldExample extends StatefulWidget {
-  const CupertinoTextFieldExample({Key? key}) : super(key: key);
+  const CupertinoTextFieldExample({super.key});
 
   @override
   State<CupertinoTextFieldExample> createState() => _CupertinoTextFieldExampleState();

examples/api/lib/cupertino/text_form_field_row/cupertino_text_form_field_row.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/cupertino.dart';
 void main() => runApp(const FormSectionApp());
 
 class FormSectionApp extends StatelessWidget {
-  const FormSectionApp({Key? key}) : super(key: key);
+  const FormSectionApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class FormSectionApp extends StatelessWidget {
 }
 
 class FromSectionExample extends StatelessWidget {
-  const FromSectionExample({Key? key}) : super(key: key);
+  const FromSectionExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/foundation/change_notifier/change_notifier.0.dart

@@ -7,7 +7,7 @@
 import 'package:flutter/material.dart';
 
 class CounterBody extends StatelessWidget {
-  const CounterBody({Key? key, required this.counterValueNotifier}) : super(key: key);
+  const CounterBody({super.key, required this.counterValueNotifier});
 
   final ValueNotifier<int> counterValueNotifier;
 
@@ -36,7 +36,7 @@ class CounterBody extends StatelessWidget {
 }
 
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   State<MyApp> createState() => _MyAppState();

examples/api/lib/gestures/pointer_signal_resolver/pointer_signal_resolver.0.dart

@@ -11,7 +11,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,11 +26,11 @@ class MyApp extends StatelessWidget {
 
 class ColorChanger extends StatefulWidget {
   const ColorChanger({
-    Key? key,
+    super.key,
     required this.initialColor,
     required this.useResolver,
     this.child,
-  }) : super(key: key);
+  });
 
   final HSVColor initialColor;
   final bool useResolver;
@@ -86,7 +86,7 @@ class _ColorChangerState extends State<ColorChanger> {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/about/about_list_tile.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/app_bar/app_bar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/app_bar/app_bar.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/app_bar/sliver_app_bar.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/autocomplete/autocomplete.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const AutocompleteExampleApp());
 
 class AutocompleteExampleApp extends StatelessWidget {
-  const AutocompleteExampleApp({Key? key}) : super(key: key);
+  const AutocompleteExampleApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -27,7 +27,7 @@ class AutocompleteExampleApp extends StatelessWidget {
 }
 
 class AutocompleteBasicExample extends StatelessWidget {
-  const AutocompleteBasicExample({Key? key}) : super(key: key);
+  const AutocompleteBasicExample({super.key});
 
   static const List<String> _kOptions = <String>[
     'aardvark',

examples/api/lib/material/autocomplete/autocomplete.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const AutocompleteExampleApp());
 
 class AutocompleteExampleApp extends StatelessWidget {
-  const AutocompleteExampleApp({Key? key}) : super(key: key);
+  const AutocompleteExampleApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -54,7 +54,7 @@ class User {
 }
 
 class AutocompleteBasicUserExample extends StatelessWidget {
-  const AutocompleteBasicUserExample({Key? key}) : super(key: key);
+  const AutocompleteBasicUserExample({super.key});
 
   static const List<User> _userOptions = <User>[
     User(name: 'Alice', email: 'alice@example.com'),

examples/api/lib/material/banner/material_banner.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/banner/material_banner.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/bottom_app_bar/bottom_app_bar.1.dart

@@ -11,7 +11,7 @@ void main() {
 }
 
 class BottomAppBarDemo extends StatefulWidget {
-  const BottomAppBarDemo({Key? key}) : super(key: key);
+  const BottomAppBarDemo({super.key});
 
   @override
   State createState() => _BottomAppBarDemoState();

examples/api/lib/material/bottom_navigation_bar/bottom_navigation_bar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/bottom_navigation_bar/bottom_navigation_bar.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/bottom_sheet/show_modal_bottom_sheet.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/button_style/button_style.0.dart

@@ -11,7 +11,7 @@ void main() {
 }
 
 class ButtonApp extends StatelessWidget {
-  const ButtonApp({Key? key}) : super(key: key);
+  const ButtonApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -26,7 +26,7 @@ class ButtonApp extends StatelessWidget {
 }
 
 class ButtonTypesExample extends StatelessWidget {
-  const ButtonTypesExample({Key? key}) : super(key: key);
+  const ButtonTypesExample({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -45,7 +45,7 @@ class ButtonTypesExample extends StatelessWidget {
 }
 
 class ButtonTypesGroup extends StatelessWidget {
-  const ButtonTypesGroup({ Key? key, required this.enabled }) : super(key: key);
+  const ButtonTypesGroup({ super.key, required this.enabled });
 
   final bool enabled;
 

examples/api/lib/material/card/card.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/card/card.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/card/card.2.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() { runApp(const CardExamplesApp()); }
 
 class CardExamplesApp extends StatelessWidget {
-  const CardExamplesApp({Key? key}) : super(key: key);
+  const CardExamplesApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -38,7 +38,7 @@ class CardExamplesApp extends StatelessWidget {
 ///
 /// https://m3.material.io/components/cards/specs#a012d40d-7a5c-4b07-8740-491dec79d58b
 class ElevatedCardExample extends StatelessWidget {
-  const ElevatedCardExample({ Key? key }) : super(key: key);
+  const ElevatedCardExample({ super.key });
 
   @override
   Widget build(BuildContext context) {
@@ -61,7 +61,7 @@ class ElevatedCardExample extends StatelessWidget {
 ///
 /// https://m3.material.io/components/cards/specs#0f55bf62-edf2-4619-b00d-b9ed462f2c5a
 class FilledCardExample extends StatelessWidget {
-  const FilledCardExample({ Key? key }) : super(key: key);
+  const FilledCardExample({ super.key });
 
   @override
   Widget build(BuildContext context) {
@@ -86,7 +86,7 @@ class FilledCardExample extends StatelessWidget {
 ///
 /// https://m3.material.io/components/cards/specs#0f55bf62-edf2-4619-b00d-b9ed462f2c5a
 class OutlinedCardExample extends StatelessWidget {
-  const OutlinedCardExample({ Key? key }) : super(key: key);
+  const OutlinedCardExample({ super.key });
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/checkbox/checkbox.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -28,7 +28,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/checkbox_list_tile/checkbox_list_tile.0.dart

@@ -10,7 +10,7 @@ import 'package:flutter/scheduler.dart' show timeDilation;
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -29,7 +29,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/checkbox_list_tile/checkbox_list_tile.1.dart

@@ -11,7 +11,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -31,12 +31,12 @@ class MyApp extends StatelessWidget {
 
 class LinkedLabelCheckbox extends StatelessWidget {
   const LinkedLabelCheckbox({
-    Key? key,
+    super.key,
     required this.label,
     required this.padding,
     required this.value,
     required this.onChanged,
-  }) : super(key: key);
+  });
 
   final String label;
   final EdgeInsets padding;
@@ -77,7 +77,7 @@ class LinkedLabelCheckbox extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/checkbox_list_tile/checkbox_list_tile.2.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -29,12 +29,12 @@ class MyApp extends StatelessWidget {
 
 class LabeledCheckbox extends StatelessWidget {
   const LabeledCheckbox({
-    Key? key,
+    super.key,
     required this.label,
     required this.padding,
     required this.value,
     required this.onChanged,
-  }) : super(key: key);
+  });
 
   final String label;
   final EdgeInsets padding;
@@ -66,7 +66,7 @@ class LabeledCheckbox extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/chip/deletable_chip_attributes.on_deleted.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -34,7 +34,7 @@ class Actor {
 }
 
 class CastList extends StatefulWidget {
-  const CastList({Key? key}) : super(key: key);
+  const CastList({super.key});
 
   @override
   State createState() => CastListState();
@@ -76,7 +76,7 @@ class CastListState extends State<CastList> {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/data_table/data_table.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/data_table/data_table.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/date_picker/show_date_picker.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -24,7 +24,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key, this.restorationId}) : super(key: key);
+  const MyStatefulWidget({super.key, this.restorationId});
 
   final String? restorationId;
 

examples/api/lib/material/date_picker/show_date_range_picker.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -24,7 +24,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key, this.restorationId}) : super(key: key);
+  const MyStatefulWidget({super.key, this.restorationId});
 
   final String? restorationId;
 

examples/api/lib/material/dialog/alert_dialog.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -25,7 +25,7 @@ class MyApp extends StatelessWidget {
 }
 
 class DialogExample extends StatelessWidget {
-  const DialogExample({Key? key}) : super(key: key);
+  const DialogExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/dialog/alert_dialog.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class DialogExample extends StatelessWidget {
-  const DialogExample({Key? key}) : super(key: key);
+  const DialogExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/dialog/show_dialog.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -20,7 +20,7 @@ class MyApp extends StatelessWidget {
 }
 
 class DialogExample extends StatelessWidget {
-  const DialogExample({Key? key}) : super(key: key);
+  const DialogExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/dialog/show_dialog.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class MyApp extends StatelessWidget {
 }
 
 class DialogExample extends StatelessWidget {
-  const DialogExample({Key? key}) : super(key: key);
+  const DialogExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/dialog/show_dialog.2.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class MyApp extends StatelessWidget {
 }
 
 class DialogExample extends StatelessWidget {
-  const DialogExample({Key? key}) : super(key: key);
+  const DialogExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/divider/divider.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/divider/vertical_divider.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/dropdown/dropdown_button.0.dart

@@ -11,7 +11,7 @@ const List<String> list = <String>['One', 'Two', 'Three', 'Four'];
 void main() => runApp(const DropdownButtonApp());
 
 class DropdownButtonApp extends StatelessWidget {
-  const DropdownButtonApp({Key? key}) : super(key: key);
+  const DropdownButtonApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -27,7 +27,7 @@ class DropdownButtonApp extends StatelessWidget {
 }
 
 class DropdownButtonExample extends StatefulWidget {
-  const DropdownButtonExample({Key? key}) : super(key: key);
+  const DropdownButtonExample({super.key});
 
   @override
   State<DropdownButtonExample> createState() => _DropdownButtonExampleState();

examples/api/lib/material/dropdown/dropdown_button.selected_item_builder.0.dart

@@ -17,7 +17,7 @@ Map<String, String> cities = <String, String>{
 void main() => runApp(const DropdownButtonApp());
 
 class DropdownButtonApp extends StatelessWidget {
-  const DropdownButtonApp({Key? key}) : super(key: key);
+  const DropdownButtonApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -31,7 +31,7 @@ class DropdownButtonApp extends StatelessWidget {
 }
 
 class DropdownButtonExample extends StatefulWidget {
-  const DropdownButtonExample({Key? key}) : super(key: key);
+  const DropdownButtonExample({super.key});
 
   @override
   State<DropdownButtonExample> createState() => _DropdownButtonExampleState();

examples/api/lib/material/dropdown/dropdown_button.style.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const DropdownButtonApp());
 
 class DropdownButtonApp extends StatelessWidget {
-  const DropdownButtonApp({Key? key}) : super(key: key);
+  const DropdownButtonApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -23,7 +23,7 @@ class DropdownButtonApp extends StatelessWidget {
 }
 
 class DropdownButtonExample extends StatefulWidget {
-  const DropdownButtonExample({Key? key}) : super(key: key);
+  const DropdownButtonExample({super.key});
 
   @override
   State<DropdownButtonExample> createState() => _DropdownButtonExampleState();

examples/api/lib/material/elevated_button/elevated_button.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/expansion_panel/expansion_panel_list.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -48,7 +48,7 @@ List<Item> generateItems(int numberOfItems) {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/expansion_panel/expansion_panel_list.expansion_panel_list_radio.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -49,7 +49,7 @@ List<Item> generateItems(int numberOfItems) {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/expansion_tile/expansion_tile.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/flexible_space_bar/flexible_space_bar.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MaterialApp(home: MyApp()));
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/floating_action_button/floating_action_button.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -20,7 +20,7 @@ class MyApp extends StatelessWidget {
 }
 
 class FabExample extends StatelessWidget {
-  const FabExample({Key? key}) : super(key: key);
+  const FabExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/floating_action_button/floating_action_button.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -20,7 +20,7 @@ class MyApp extends StatelessWidget {
 }
 
 class FabExample extends StatelessWidget {
-  const FabExample({Key? key}) : super(key: key);
+  const FabExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/floating_action_button/floating_action_button.2.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class MyApp extends StatelessWidget {
 }
 
 class FabExample extends StatelessWidget {
-  const FabExample({Key? key}) : super(key: key);
+  const FabExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/floating_action_button/floating_action_button.3.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class MyApp extends StatelessWidget {
 }
 
 class FabExample extends StatelessWidget {
-  const FabExample({Key? key}) : super(key: key);
+  const FabExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/floating_action_button_location/standard_fab_location.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -35,7 +35,7 @@ class AlmostEndFloatFabLocation extends StandardFabLocation
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/icon_button/icon_button.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -30,7 +30,7 @@ class MyApp extends StatelessWidget {
 double _volume = 0.0;
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/icon_button/icon_button.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   @override

examples/api/lib/material/ink/ink.image_clip.0.dart

@@ -21,7 +21,7 @@ void main() {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key, required this.image}) : super(key: key);
+  const MyStatelessWidget({super.key, required this.image});
 
   final ImageProvider image;
 

examples/api/lib/material/ink/ink.image_clip.1.dart

@@ -21,7 +21,7 @@ void main() {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key, required this.image}) : super(key: key);
+  const MyStatelessWidget({super.key, required this.image});
 
   final ImageProvider image;
 

examples/api/lib/material/ink_well/ink_well.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -28,7 +28,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/input_decorator/input_decoration.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.2.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.3.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.floating_label_style_error.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -28,7 +28,7 @@ class MyApp extends StatelessWidget {
 }
 
 class InputDecoratorExample extends StatelessWidget {
-  const InputDecoratorExample({Key? key}) : super(key: key);
+  const InputDecoratorExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.label.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.label_style_error.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -28,7 +28,7 @@ class MyApp extends StatelessWidget {
 }
 
 class InputDecoratorExample extends StatelessWidget {
-  const InputDecoratorExample({Key? key}) : super(key: key);
+  const InputDecoratorExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.material_state.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.material_state.1.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.prefix_icon.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class MyApp extends StatelessWidget {
 }
 
 class InputDecoratorExample extends StatelessWidget {
-  const InputDecoratorExample({Key? key}) : super(key: key);
+  const InputDecoratorExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.prefix_icon_constraints.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.suffix_icon.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +21,7 @@ class MyApp extends StatelessWidget {
 }
 
 class InputDecoratorExample extends StatelessWidget {
-  const InputDecoratorExample({Key? key}) : super(key: key);
+  const InputDecoratorExample({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/input_decorator/input_decoration.suffix_icon_constraints.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/list_tile/list_tile.4.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -27,12 +27,12 @@ class MyApp extends StatelessWidget {
 
 class CustomListItem extends StatelessWidget {
   const CustomListItem({
-    Key? key,
+    super.key,
     required this.thumbnail,
     required this.title,
     required this.user,
     required this.viewCount,
-  }) : super(key: key);
+  });
 
   final Widget thumbnail;
   final String title;
@@ -70,11 +70,10 @@ class CustomListItem extends StatelessWidget {
 
 class _VideoDescription extends StatelessWidget {
   const _VideoDescription({
-    Key? key,
     required this.title,
     required this.user,
     required this.viewCount,
-  }) : super(key: key);
+  });
 
   final String title;
   final String user;
@@ -111,7 +110,7 @@ class _VideoDescription extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/list_tile/list_tile.5.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -27,13 +27,12 @@ class MyApp extends StatelessWidget {
 
 class _ArticleDescription extends StatelessWidget {
   const _ArticleDescription({
-    Key? key,
     required this.title,
     required this.subtitle,
     required this.author,
     required this.publishDate,
     required this.readDuration,
-  }) : super(key: key);
+  });
 
   final String title;
   final String subtitle;
@@ -100,14 +99,14 @@ class _ArticleDescription extends StatelessWidget {
 
 class CustomListItemTwo extends StatelessWidget {
   const CustomListItemTwo({
-    Key? key,
+    super.key,
     required this.thumbnail,
     required this.title,
     required this.subtitle,
     required this.author,
     required this.publishDate,
     required this.readDuration,
-  }) : super(key: key);
+  });
 
   final Widget thumbnail;
   final String title;
@@ -149,7 +148,7 @@ class CustomListItemTwo extends StatelessWidget {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {

examples/api/lib/material/list_tile/list_tile.selected.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/material_state/material_state_border_side.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -28,7 +28,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyStatefulWidget extends StatefulWidget {
-  const MyStatefulWidget({Key? key}) : super(key: key);
+  const MyStatefulWidget({super.key});
 
   @override
   State<MyStatefulWidget> createState() => _MyStatefulWidgetState();

examples/api/lib/material/material_state/material_state_mouse_cursor.0.dart

@@ -9,7 +9,7 @@ import 'package:flutter/material.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   static const String _title = 'Flutter Code Sample';
 
@@ -41,7 +41,7 @@ class ListTileCursor extends MaterialStateMouseCursor {
 }
 
 class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
+  const MyStatelessWidget({super.key});
 
   @override
   Widget build(BuildContext context) {