Add @protected to public State method overrides (#157313)

I don't want to see these methods in my autofill suggestions.

<br>

![navigator
dispose](https://github.com/user-attachments/assets/5d2dc37c-abe9-44f4-ad16-4396a3aeeaf7)

dev/bots/analyze.dart

@@ -22,6 +22,7 @@ import 'custom_rules/analyze.dart';
 import 'custom_rules/avoid_future_catcherror.dart';
 import 'custom_rules/no_double_clamp.dart';
 import 'custom_rules/no_stop_watches.dart';
+import 'custom_rules/protect_public_state_subtypes.dart';
 import 'custom_rules/render_box_intrinsics.dart';
 import 'run_command.dart';
 import 'utils.dart';
@@ -180,7 +181,12 @@ Future<void> run(List<String> arguments) async {
     // Only run the private lints when the code is free of type errors. The
     // lints are easier to write when they can assume, for example, there is no
     // inheritance cycles.
-    final List<AnalyzeRule> rules = <AnalyzeRule>[noDoubleClamp, noStopwatches, renderBoxIntrinsicCalculation];
+    final List<AnalyzeRule> rules = <AnalyzeRule>[
+      noDoubleClamp,
+      noStopwatches,
+      renderBoxIntrinsicCalculation,
+      protectPublicStateSubtypes,
+    ];
     final String ruleNames = rules.map((AnalyzeRule rule) => '\n * $rule').join();
     printProgress('Analyzing code in the framework with the following rules:$ruleNames');
     await analyzeWithRules(flutterRoot, rules,

dev/bots/custom_rules/protect_public_state_subtypes.dart

@@ -0,0 +1,101 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// TODO(nate-thegrate): remove this file if @protected changes, or add a test if it doesn't.
+// https://github.com/dart-lang/sdk/issues/57094
+
+import 'package:analyzer/dart/analysis/results.dart';
+import 'package:analyzer/dart/ast/ast.dart';
+import 'package:analyzer/dart/ast/visitor.dart';
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/type.dart';
+
+import '../utils.dart';
+import 'analyze.dart';
+
+final AnalyzeRule protectPublicStateSubtypes = _ProtectPublicStateSubtypes();
+
+class _ProtectPublicStateSubtypes implements AnalyzeRule {
+  final Map<ResolvedUnitResult, List<MethodDeclaration>> _errors = <ResolvedUnitResult, List<MethodDeclaration>>{};
+
+  @override
+  void applyTo(ResolvedUnitResult unit) {
+    final _StateSubclassVisitor visitor = _StateSubclassVisitor();
+    unit.unit.visitChildren(visitor);
+    final List<MethodDeclaration> unprotected = visitor.unprotectedMethods;
+    if (unprotected.isNotEmpty) {
+      _errors.putIfAbsent(unit, () => <MethodDeclaration>[]).addAll(unprotected);
+    }
+  }
+
+  @override
+  void reportViolations(String workingDirectory) {
+    if (_errors.isEmpty) {
+      return;
+    }
+
+    foundError(
+      <String>[
+        for (final MapEntry<ResolvedUnitResult, List<MethodDeclaration>> entry in _errors.entries)
+          for (final MethodDeclaration method in entry.value)
+            '${locationInFile(entry.key, method, workingDirectory)}: $method - missing "@protected" annotation.',
+        '\nPublic State subtypes should add @protected when overriding methods,',
+        'to avoid exposing internal logic to developers.',
+      ],
+    );
+  }
+
+  @override
+  String toString() => 'Add "@protected" to public State subtypes';
+}
+
+class _StateSubclassVisitor extends SimpleAstVisitor<void> {
+  final List<MethodDeclaration> unprotectedMethods = <MethodDeclaration>[];
+
+  /// Holds the `State` class [DartType].
+  static DartType? stateType;
+
+  static bool isPublicStateSubtype(InterfaceElement element) {
+    if (!element.isPublic) {
+      return false;
+    }
+    if (stateType != null) {
+      return element.allSupertypes.contains(stateType);
+    }
+    for (final InterfaceType superType in element.allSupertypes) {
+      if (superType.element.name == 'State') {
+        stateType = superType;
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @override
+  void visitClassDeclaration(ClassDeclaration node) {
+    if (isPublicStateSubtype(node.declaredElement!)) {
+      node.visitChildren(this);
+    }
+  }
+
+  /// Checks whether overridden `State` methods have the `@protected` annotation,
+  /// and adds the declaration to [unprotectedMethods] if not.
+  @override
+  void visitMethodDeclaration(MethodDeclaration node) {
+    switch (node.name.lexeme) {
+      case 'initState':
+      case 'didUpdateWidget':
+      case 'didChangeDependencies':
+      case 'reassemble':
+      case 'deactivate':
+      case 'activate':
+      case 'dispose':
+      case 'build':
+      case 'debugFillProperties':
+        if (!node.declaredElement!.hasProtected) {
+          unprotectedMethods.add(node);
+        }
+    }
+  }
+}

packages/flutter/lib/src/material/drawer.dart

@@ -468,6 +468,7 @@ class DrawerController extends StatefulWidget {
 ///
 /// Typically used by a [Scaffold] to [open] and [close] the drawer.
 class DrawerControllerState extends State<DrawerController> with SingleTickerProviderStateMixin {
+  @protected
   @override
   void initState() {
     super.initState();
@@ -481,6 +482,7 @@ class DrawerControllerState extends State<DrawerController> with SingleTickerPro
       ..addStatusListener(_animationStatusChanged);
   }
 
+  @protected
   @override
   void dispose() {
     _historyEntry?.remove();
@@ -489,12 +491,14 @@ class DrawerControllerState extends State<DrawerController> with SingleTickerPro
     super.dispose();
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
     _scrimColorTween = _buildScrimColorTween();
   }
 
+  @protected
   @override
   void didUpdateWidget(DrawerController oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -751,6 +755,7 @@ class DrawerControllerState extends State<DrawerController> with SingleTickerPro
     }
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMaterialLocalizations(context));

packages/flutter/lib/src/material/paginated_data_table.dart

@@ -331,6 +331,7 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
   int _selectedRowCount = 0;
   final Map<int, DataRow?> _rows = <int, DataRow?>{};
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -339,6 +340,7 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
     _handleDataSourceChanged();
   }
 
+  @protected
   @override
   void didUpdateWidget(PaginatedDataTable oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -349,6 +351,7 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
     }
   }
 
+  @protected
   @override
   void reassemble() {
     super.reassemble();
@@ -366,6 +369,7 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
     _updateCaches();
   }
 
+  @protected
   @override
   void dispose() {
     widget.source.removeListener(_handleDataSourceChanged);
@@ -468,6 +472,7 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
 
   final GlobalKey _tableKey = GlobalKey();
 
+  @protected
   @override
   Widget build(BuildContext context) {
     // TODO(ianh): This whole build function doesn't handle RTL yet.

packages/flutter/lib/src/material/popup_menu.dart

@@ -356,6 +356,7 @@ class PopupMenuItemState<T, W extends PopupMenuItem<T>> extends State<W> {
     widget.onTap?.call();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     final ThemeData theme = Theme.of(context);
@@ -1544,6 +1545,7 @@ class PopupMenuButtonState<T> extends State<PopupMenuButton<T>> {
     };
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     final IconThemeData iconTheme = IconTheme.of(context);

packages/flutter/lib/src/material/refresh_indicator.dart

@@ -352,6 +352,7 @@ class RefreshIndicatorState extends State<RefreshIndicator>
     end: 0.0,
   );
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -365,12 +366,14 @@ class RefreshIndicatorState extends State<RefreshIndicator>
     _scaleFactor = _scaleController.drive(_oneToZeroTween);
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     _setupColorTween();
     super.didChangeDependencies();
   }
 
+  @protected
   @override
   void didUpdateWidget(covariant RefreshIndicator oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -379,6 +382,7 @@ class RefreshIndicatorState extends State<RefreshIndicator>
     }
   }
 
+  @protected
   @override
   void dispose() {
     _positionController.dispose();
@@ -636,6 +640,7 @@ class RefreshIndicatorState extends State<RefreshIndicator>
     return _pendingRefreshFuture;
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMaterialLocalizations(context));

packages/flutter/lib/src/material/scaffold.dart

@@ -197,6 +197,7 @@ class ScaffoldMessengerState extends State<ScaffoldMessenger> with TickerProvide
   Timer? _snackBarTimer;
   bool? _accessibleNavigation;
 
+  @protected
   @override
   void didChangeDependencies() {
     final bool accessibleNavigation = MediaQuery.accessibleNavigationOf(context);
@@ -604,6 +605,7 @@ class ScaffoldMessengerState extends State<ScaffoldMessenger> with TickerProvide
     hideCurrentMaterialBanner();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMediaQuery(context));
@@ -632,6 +634,7 @@ class ScaffoldMessengerState extends State<ScaffoldMessenger> with TickerProvide
     );
   }
 
+  @protected
   @override
   void dispose() {
     _materialBannerController?.dispose();
@@ -2116,6 +2119,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
   @override
   String? get restorationId => widget.restorationId;
 
+  @protected
   @override
   void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
     registerForRestoration(_drawerOpened, 'drawer_open');
@@ -2676,6 +2680,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
     return widget.resizeToAvoidBottomInset ?? true;
   }
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -2695,6 +2700,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
     );
   }
 
+  @protected
   @override
   void didUpdateWidget(Scaffold oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -2732,6 +2738,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
     }
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     // Using maybeOf is valid here since both the Scaffold and ScaffoldMessenger
@@ -2750,6 +2757,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
     super.didChangeDependencies();
   }
 
+  @protected
   @override
   void dispose() {
     _geometryNotifier.dispose();
@@ -2864,6 +2872,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
     });
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMediaQuery(context));

packages/flutter/lib/src/material/segmented_button.dart

@@ -426,6 +426,7 @@ class SegmentedButtonState<T> extends State<SegmentedButton<T>> {
   @visibleForTesting
   final Map<ButtonSegment<T>, MaterialStatesController> statesControllers = <ButtonSegment<T>, MaterialStatesController>{};
 
+  @protected
   @override
   void didUpdateWidget(covariant SegmentedButton<T> oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -464,6 +465,7 @@ class SegmentedButtonState<T> extends State<SegmentedButton<T>> {
     }
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     final SegmentedButtonThemeData theme = SegmentedButtonTheme.of(context);
@@ -605,6 +607,7 @@ class SegmentedButtonState<T> extends State<SegmentedButton<T>> {
     );
   }
 
+  @protected
   @override
   void dispose() {
     for (final MaterialStatesController controller in statesControllers.values) {

packages/flutter/lib/src/material/selection_area.dart

@@ -113,6 +113,7 @@ class SelectionAreaState extends State<SelectionArea> {
   /// The [State] of the [SelectableRegion] for which this [SelectionArea] wraps.
   SelectableRegionState get selectableRegion => _selectableRegionKey.currentState!;
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMaterialLocalizations(context));

packages/flutter/lib/src/material/tooltip.dart

@@ -706,6 +706,7 @@ class TooltipState extends State<Tooltip> with SingleTickerProviderStateMixin {
     return true;
   }
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -715,6 +716,7 @@ class TooltipState extends State<Tooltip> with SingleTickerProviderStateMixin {
     GestureBinding.instance.pointerRouter.addGlobalRoute(_handleGlobalPointerEvent);
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -797,6 +799,7 @@ class TooltipState extends State<Tooltip> with SingleTickerProviderStateMixin {
       : SelectionContainer.disabled(child: overlayChild);
   }
 
+  @protected
   @override
   void dispose() {
     GestureBinding.instance.pointerRouter.removeGlobalRoute(_handleGlobalPointerEvent);
@@ -815,6 +818,7 @@ class TooltipState extends State<Tooltip> with SingleTickerProviderStateMixin {
     super.dispose();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     // If message is empty then no need to create a tooltip overlay to show

packages/flutter/lib/src/widgets/animated_scroll_view.dart

@@ -299,7 +299,7 @@ class AnimatedList extends _AnimatedScrollView {
 /// [AnimatedList] item input handlers can also refer to their [AnimatedListState]
 /// with the static [AnimatedList.of] method.
 class AnimatedListState extends _AnimatedScrollViewState<AnimatedList> {
-
+  @protected
   @override
   Widget build(BuildContext context) {
     return _wrap(
@@ -508,7 +508,7 @@ class AnimatedGrid extends _AnimatedScrollView {
 /// [AnimatedGrid] item input handlers can also refer to their [AnimatedGridState]
 /// with the static [AnimatedGrid.of] method.
 class AnimatedGridState extends _AnimatedScrollViewState<AnimatedGrid> {
-
+  @protected
   @override
   Widget build(BuildContext context) {
     return _wrap(
@@ -1040,7 +1040,7 @@ class SliverAnimatedList extends _SliverAnimatedMultiBoxAdaptor {
 /// [SliverAnimatedList] item input handlers can also refer to their
 /// [SliverAnimatedListState] with the static [SliverAnimatedList.of] method.
 class SliverAnimatedListState extends _SliverAnimatedMultiBoxAdaptorState<SliverAnimatedList> {
-
+  @protected
   @override
   Widget build(BuildContext context) {
     return SliverList(
@@ -1187,7 +1187,7 @@ class SliverAnimatedGrid extends _SliverAnimatedMultiBoxAdaptor {
 /// [SliverAnimatedGrid] item input handlers can also refer to their
 /// [SliverAnimatedGridState] with the static [SliverAnimatedGrid.of] method.
 class SliverAnimatedGridState extends _SliverAnimatedMultiBoxAdaptorState<SliverAnimatedGrid> {
-
+  @protected
   @override
   Widget build(BuildContext context) {
     return SliverGrid(

packages/flutter/lib/src/widgets/autofill.dart

@@ -213,12 +213,14 @@ class AutofillGroupState extends State<AutofillGroup> with AutofillScopeMixin {
     _clients.remove(autofillId);
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
     _isTopmostAutofillGroup = AutofillGroup.maybeOf(context) == null;
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     return _AutofillScope(
@@ -227,6 +229,7 @@ class AutofillGroupState extends State<AutofillGroup> with AutofillScopeMixin {
     );
   }
 
+  @protected
   @override
   void dispose() {
     super.dispose();

packages/flutter/lib/src/widgets/editable_text.dart

@@ -2979,6 +2979,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
 
   // State lifecycle:
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -3005,6 +3006,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
   // cursor) are supposed to run.
   bool _tickersEnabled = true;
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -3080,6 +3082,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     }
   }
 
+  @protected
   @override
   void didUpdateWidget(EditableText oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -3183,6 +3186,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     }
   }
 
+  @protected
   @override
   void dispose() {
     _internalScrollController?.dispose();
@@ -5178,6 +5182,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     EditableTextTapOutsideIntent: _makeOverridable(_EditableTextTapOutsideAction()),
   };
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMediaQuery(context));

packages/flutter/lib/src/widgets/form.dart

@@ -268,6 +268,7 @@ class FormState extends State<Form> {
     }
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     switch (widget.autovalidateMode) {
@@ -671,24 +672,28 @@ class FormFieldState<T> extends State<FormField<T>> with RestorationMixin {
   @override
   String? get restorationId => widget.restorationId;
 
+  @protected
   @override
   void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
     registerForRestoration(_errorText, 'error_text');
     registerForRestoration(_hasInteractedByUser, 'has_interacted_by_user');
   }
 
+  @protected
   @override
   void deactivate() {
     Form.maybeOf(context)?._unregister(this);
     super.deactivate();
   }
 
+  @protected
   @override
   void initState() {
     super.initState();
     _errorText = RestorableStringN(widget.forceErrorText);
   }
 
+  @protected
   @override
   void didUpdateWidget(FormField<T> oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -697,6 +702,7 @@ class FormFieldState<T> extends State<FormField<T>> with RestorationMixin {
     }
   }
 
+  @protected
   @override
   void dispose() {
     _errorText.dispose();
@@ -705,6 +711,7 @@ class FormFieldState<T> extends State<FormField<T>> with RestorationMixin {
     super.dispose();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     if (widget.enabled) {

packages/flutter/lib/src/widgets/framework.dart

@@ -1495,6 +1495,9 @@ abstract class State<T extends StatefulWidget> with Diagnosticable {
     properties.add(ObjectFlagProperty<T>('_widget', _widget, ifNull: 'no widget'));
     properties.add(ObjectFlagProperty<StatefulElement>('_element', _element, ifNull: 'not mounted'));
   }
+
+  // If @protected State methods are added or removed, the analysis rule should be
+  // updated accordingly (dev/bots/custom_rules/protect_public_state_subtypes.dart)
 }
 
 /// A widget that has a child widget provided to it, instead of building a new

packages/flutter/lib/src/widgets/gesture_detector.dart

@@ -1405,6 +1405,7 @@ class RawGestureDetectorState extends State<RawGestureDetector> {
   Map<Type, GestureRecognizer>? _recognizers = const <Type, GestureRecognizer>{};
   SemanticsGestureDelegate? _semantics;
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -1412,6 +1413,7 @@ class RawGestureDetectorState extends State<RawGestureDetector> {
     _syncAll(widget.gestures);
   }
 
+  @protected
   @override
   void didUpdateWidget(RawGestureDetector oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -1486,6 +1488,7 @@ class RawGestureDetectorState extends State<RawGestureDetector> {
     semanticsGestureHandler!.validActions = actions; // will call _markNeedsSemanticsUpdate(), if required.
   }
 
+  @protected
   @override
   void dispose() {
     for (final GestureRecognizer recognizer in _recognizers!.values) {
@@ -1538,6 +1541,7 @@ class RawGestureDetectorState extends State<RawGestureDetector> {
     _semantics!.assignSemantics(renderObject);
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     Widget result = Listener(
@@ -1556,6 +1560,7 @@ class RawGestureDetectorState extends State<RawGestureDetector> {
     return result;
   }
 
+  @protected
   @override
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);

packages/flutter/lib/src/widgets/implicit_animations.dart

@@ -369,6 +369,7 @@ abstract class ImplicitlyAnimatedWidgetState<T extends ImplicitlyAnimatedWidget>
   Animation<double> get animation => _animation;
   late CurvedAnimation _animation = _createCurve();
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -381,6 +382,7 @@ abstract class ImplicitlyAnimatedWidgetState<T extends ImplicitlyAnimatedWidget>
     didUpdateTweens();
   }
 
+  @protected
   @override
   void didUpdateWidget(T oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -405,6 +407,7 @@ abstract class ImplicitlyAnimatedWidgetState<T extends ImplicitlyAnimatedWidget>
     return CurvedAnimation(parent: _controller, curve: widget.curve);
   }
 
+  @protected
   @override
   void dispose() {
     _animation.dispose();
@@ -554,6 +557,7 @@ abstract class ImplicitlyAnimatedWidgetState<T extends ImplicitlyAnimatedWidget>
 /// [AnimatedWidgetBaseState] to iterate through the subclasses' widget's fields
 /// and animate them.
 abstract class AnimatedWidgetBaseState<T extends ImplicitlyAnimatedWidget> extends ImplicitlyAnimatedWidgetState<T> {
+  @protected
   @override
   void initState() {
     super.initState();

packages/flutter/lib/src/widgets/navigator.dart

@@ -3706,6 +3706,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     return true;
   }
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -3742,6 +3743,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
 
   int get _nextPagelessRestorationScopeId => _rawNextPagelessRestorationScopeId.value++;
 
+  @protected
   @override
   void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
     registerForRestoration(_rawNextPagelessRestorationScopeId, 'id');
@@ -3810,6 +3812,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     assert(() { _debugLocked = false; return true; }());
   }
 
+  @protected
   @override
   void didToggleBucket(RestorationBucket? oldBucket) {
     super.didToggleBucket(oldBucket);
@@ -3822,6 +3825,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
   @override
   String? get restorationId => widget.restorationScopeId;
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -3915,6 +3919,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     }
   }
 
+  @protected
   @override
   void didUpdateWidget(Navigator oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -3969,6 +3974,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     }());
   }
 
+  @protected
   @override
   void deactivate() {
     for (final NavigatorObserver observer in _effectiveObservers) {
@@ -3978,6 +3984,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     super.deactivate();
   }
 
+  @protected
   @override
   void activate() {
     super.activate();
@@ -3988,6 +3995,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     }
   }
 
+  @protected
   @override
   void dispose() {
     assert(!_debugLocked);
@@ -5646,6 +5654,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
     return result;
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(!_debugLocked);

packages/flutter/lib/src/widgets/nested_scroll_view.dart

@@ -425,6 +425,7 @@ class NestedScrollViewState extends State<NestedScrollView> {
 
   _NestedScrollCoordinator? _coordinator;
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -436,12 +437,14 @@ class NestedScrollViewState extends State<NestedScrollView> {
     );
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
     _coordinator!.setParent(widget.controller);
   }
 
+  @protected
   @override
   void didUpdateWidget(NestedScrollView oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -450,6 +453,7 @@ class NestedScrollViewState extends State<NestedScrollView> {
     }
   }
 
+  @protected
   @override
   void dispose() {
     _coordinator!.dispose();
@@ -476,6 +480,7 @@ class NestedScrollViewState extends State<NestedScrollView> {
     }
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     final ScrollPhysics scrollPhysics = widget.physics?.applyTo(const ClampingScrollPhysics())

packages/flutter/lib/src/widgets/overlay.dart

@@ -604,6 +604,7 @@ class Overlay extends StatefulWidget {
 class OverlayState extends State<Overlay> with TickerProviderStateMixin {
   final List<OverlayEntry> _entries = <OverlayEntry>[];
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -808,6 +809,7 @@ class OverlayState extends State<Overlay> with TickerProviderStateMixin {
     });
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     // This list is filled backwards and then reversed below before
@@ -842,6 +844,7 @@ class OverlayState extends State<Overlay> with TickerProviderStateMixin {
     );
   }
 
+  @protected
   @override
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);

packages/flutter/lib/src/widgets/reorderable_list.dart

@@ -388,6 +388,7 @@ class ReorderableListState extends State<ReorderableList> {
     _sliverReorderableListKey.currentState!.cancelReorder();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     return CustomScrollView(
@@ -630,6 +631,7 @@ class SliverReorderableListState extends State<SliverReorderableList> with Ticke
   Axis get _scrollDirection => axisDirectionToAxis(_scrollable.axisDirection);
   bool get _reverse => axisDirectionIsReversed(_scrollable.axisDirection);
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -644,6 +646,7 @@ class SliverReorderableListState extends State<SliverReorderableList> with Ticke
     }
   }
 
+  @protected
   @override
   void didUpdateWidget(covariant SliverReorderableList oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -661,6 +664,7 @@ class SliverReorderableListState extends State<SliverReorderableList> with Ticke
     }
   }
 
+  @protected
   @override
   void dispose() {
     _dragReset();
@@ -1030,6 +1034,7 @@ class SliverReorderableListState extends State<SliverReorderableList> with Ticke
     );
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasOverlay(context));

packages/flutter/lib/src/widgets/scroll_notification_observer.dart

@@ -216,6 +216,7 @@ class ScrollNotificationObserverState extends State<ScrollNotificationObserver>
     }
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     return NotificationListener<ScrollMetricsNotification>(
@@ -239,6 +240,7 @@ class ScrollNotificationObserverState extends State<ScrollNotificationObserver>
     );
   }
 
+  @protected
   @override
   void dispose() {
     assert(_debugAssertNotDisposed());

packages/flutter/lib/src/widgets/scrollable.dart

@@ -626,6 +626,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     _effectiveScrollController.attach(position);
   }
 
+  @protected
   @override
   void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
     registerForRestoration(_persistedScrollOffset, 'offset');
@@ -635,6 +636,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     }
   }
 
+  @protected
   @override
   void saveOffset(double offset) {
     assert(debugIsSerializableForRestoration(offset));
@@ -644,6 +646,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     ServicesBinding.instance.restorationManager.flushData();
   }
 
+  @protected
   @override
   void initState() {
     if (widget.controller == null) {
@@ -652,6 +655,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     super.initState();
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     _mediaQueryGestureSettings = MediaQuery.maybeGestureSettingsOf(context);
@@ -680,6 +684,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     return widget.controller?.runtimeType != oldWidget.controller?.runtimeType;
   }
 
+  @protected
   @override
   void didUpdateWidget(Scrollable oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -711,6 +716,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     }
   }
 
+  @protected
   @override
   void dispose() {
     if (widget.controller != null) {
@@ -980,6 +986,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
 
   // DESCRIPTION
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(_position != null);
@@ -1064,6 +1071,7 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     return (<Future<void>>[ ensureVisibleFuture ], this);
   }
 
+  @protected
   @override
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);
@@ -1934,6 +1942,7 @@ class TwoDimensionalScrollableState extends State<TwoDimensionalScrollable> {
     return _horizontalInnerScrollableKey.currentState!;
   }
 
+  @protected
   @override
   void initState() {
     if (widget.verticalDetails.controller == null) {
@@ -1945,6 +1954,7 @@ class TwoDimensionalScrollableState extends State<TwoDimensionalScrollable> {
     super.initState();
   }
 
+  @protected
   @override
   void didUpdateWidget(TwoDimensionalScrollable oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -1985,6 +1995,7 @@ class TwoDimensionalScrollableState extends State<TwoDimensionalScrollable> {
     }
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(
@@ -2049,6 +2060,7 @@ class TwoDimensionalScrollableState extends State<TwoDimensionalScrollable> {
     );
   }
 
+  @protected
   @override
   void dispose() {
     _verticalFallbackController?.dispose();

packages/flutter/lib/src/widgets/scrollbar.dart

@@ -1378,6 +1378,7 @@ class RawScrollbarState<T extends RawScrollbar> extends State<T> with TickerProv
   @protected
   bool get enableGestures => widget.interactive ?? true;
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -1404,6 +1405,7 @@ class RawScrollbarState<T extends RawScrollbar> extends State<T> with TickerProv
     );
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -1562,6 +1564,7 @@ class RawScrollbarState<T extends RawScrollbar> extends State<T> with TickerProv
       ..ignorePointer = !enableGestures;
   }
 
+  @protected
   @override
   void didUpdateWidget(T oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -2159,6 +2162,7 @@ class RawScrollbarState<T extends RawScrollbar> extends State<T> with TickerProv
     }
   }
 
+  @protected
   @override
   void dispose() {
     _fadeoutAnimationController.dispose();
@@ -2168,6 +2172,7 @@ class RawScrollbarState<T extends RawScrollbar> extends State<T> with TickerProv
     super.dispose();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     updateScrollbarPainter();

packages/flutter/lib/src/widgets/selectable_region.dart

@@ -375,6 +375,7 @@ class SelectableRegionState extends State<SelectableRegion> with TextSelectionDe
   FocusNode? _localFocusNode;
   FocusNode get _focusNode => widget.focusNode ?? (_localFocusNode ??= FocusNode(debugLabel: 'SelectableRegion'));
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -398,6 +399,7 @@ class SelectableRegionState extends State<SelectableRegion> with TextSelectionDe
     _processTextActions.addAll(await _processTextService.queryTextActions());
   }
 
+  @protected
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -424,6 +426,7 @@ class SelectableRegionState extends State<SelectableRegion> with TextSelectionDe
     }
   }
 
+  @protected
   @override
   void didUpdateWidget(SelectableRegion oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -1704,6 +1707,7 @@ class SelectableRegionState extends State<SelectableRegion> with TextSelectionDe
     _selectable = null;
   }
 
+  @protected
   @override
   void dispose() {
     _selectable?.removeListener(_updateSelectionStatus);
@@ -1720,6 +1724,7 @@ class SelectableRegionState extends State<SelectableRegion> with TextSelectionDe
     super.dispose();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasOverlay(context));

packages/flutter/lib/src/widgets/undo_history.dart

@@ -225,6 +225,7 @@ class UndoHistoryState<T> extends State<UndoHistory<T>> with UndoManagerClient {
     }
   }
 
+  @protected
   @override
   void initState() {
     super.initState();
@@ -243,6 +244,7 @@ class UndoHistoryState<T> extends State<UndoHistory<T>> with UndoManagerClient {
     _effectiveController.onRedo.addListener(redo);
   }
 
+  @protected
   @override
   void didUpdateWidget(UndoHistory<T> oldWidget) {
     super.didUpdateWidget(oldWidget);
@@ -265,6 +267,7 @@ class UndoHistoryState<T> extends State<UndoHistory<T>> with UndoManagerClient {
     }
   }
 
+  @protected
   @override
   void dispose() {
     if (UndoManager.client == this) {
@@ -280,6 +283,7 @@ class UndoHistoryState<T> extends State<UndoHistory<T>> with UndoManagerClient {
     super.dispose();
   }
 
+  @protected
   @override
   Widget build(BuildContext context) {
     return Actions(