Add CurvedAnimation disposals in some widgets (#143790)

Contributes to https://github.com/flutter/flutter/issues/141198

### Description
- Adds `CurvedAnimation` disposals to `material/chip.dart`, `material/input_decorator.dart`, `material/toggleable.dart`, `widgets/animated_switcher.dart`, `widgets/overscroll_indicator.dart`.

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

@@ -902,11 +902,11 @@ class _RawChipState extends State<RawChip> with MaterialStateMixin, TickerProvid
   late AnimationController avatarDrawerController;
   late AnimationController deleteDrawerController;
   late AnimationController enableController;
-  late Animation<double> checkmarkAnimation;
-  late Animation<double> avatarDrawerAnimation;
-  late Animation<double> deleteDrawerAnimation;
-  late Animation<double> enableAnimation;
-  late Animation<double> selectionFade;
+  late CurvedAnimation checkmarkAnimation;
+  late CurvedAnimation avatarDrawerAnimation;
+  late CurvedAnimation deleteDrawerAnimation;
+  late CurvedAnimation enableAnimation;
+  late CurvedAnimation selectionFade;
 
   bool get hasDeleteButton => widget.onDeleted != null;
   bool get hasAvatar => widget.avatar != null;
@@ -993,6 +993,11 @@ class _RawChipState extends State<RawChip> with MaterialStateMixin, TickerProvid
     avatarDrawerController.dispose();
     deleteDrawerController.dispose();
     enableController.dispose();
+    checkmarkAnimation.dispose();
+    avatarDrawerAnimation.dispose();
+    deleteDrawerAnimation.dispose();
+    enableAnimation.dispose();
+    selectionFade.dispose();
     super.dispose();
   }
 

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

@@ -181,9 +181,9 @@ class _BorderContainerState extends State<_BorderContainer> with TickerProviderS
 
   late AnimationController _controller;
   late AnimationController _hoverColorController;
-  late Animation<double> _borderAnimation;
+  late CurvedAnimation _borderAnimation;
   late _InputBorderTween _border;
-  late Animation<double> _hoverAnimation;
+  late CurvedAnimation _hoverAnimation;
   late ColorTween _hoverColorTween;
 
   @override
@@ -218,6 +218,8 @@ class _BorderContainerState extends State<_BorderContainer> with TickerProviderS
   void dispose() {
     _controller.dispose();
     _hoverColorController.dispose();
+    _borderAnimation.dispose();
+    _hoverAnimation.dispose();
     super.dispose();
   }
 
@@ -1902,7 +1904,7 @@ class InputDecorator extends StatefulWidget {
 
 class _InputDecoratorState extends State<InputDecorator> with TickerProviderStateMixin {
   late final AnimationController _floatingLabelController;
-  late final Animation<double> _floatingLabelAnimation;
+  late final CurvedAnimation _floatingLabelAnimation;
   late final AnimationController _shakingLabelController;
   final _InputBorderGap _borderGap = _InputBorderGap();
   static const OrdinalSortKey _kPrefixSemanticsSortOrder = OrdinalSortKey(0);
@@ -1946,6 +1948,7 @@ class _InputDecoratorState extends State<InputDecorator> with TickerProviderStat
   @override
   void dispose() {
     _floatingLabelController.dispose();
+    _floatingLabelAnimation.dispose();
     _shakingLabelController.dispose();
     _borderGap.dispose();
     super.dispose();

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

@@ -68,8 +68,8 @@ mixin ToggleableStateMixin<S extends StatefulWidget> on TickerProviderStateMixin
   ///
   /// To paint the actual radial reaction, [ToggleablePainter.paintRadialReaction]
   /// may be used.
-  Animation<double> get reaction => _reaction;
-  late Animation<double> _reaction;
+  CurvedAnimation get reaction => _reaction;
+  late CurvedAnimation _reaction;
 
   /// Controls the radial reaction's opacity animation for hover changes.
   ///
@@ -79,8 +79,8 @@ mixin ToggleableStateMixin<S extends StatefulWidget> on TickerProviderStateMixin
   ///
   /// To paint the actual radial reaction, [ToggleablePainter.paintRadialReaction]
   /// may be used.
-  Animation<double> get reactionHoverFade => _reactionHoverFade;
-  late Animation<double> _reactionHoverFade;
+  CurvedAnimation get reactionHoverFade => _reactionHoverFade;
+  late CurvedAnimation _reactionHoverFade;
   late AnimationController _reactionHoverFadeController;
 
   /// Controls the radial reaction's opacity animation for focus changes.
@@ -90,8 +90,8 @@ mixin ToggleableStateMixin<S extends StatefulWidget> on TickerProviderStateMixin
   ///
   /// To paint the actual radial reaction, [ToggleablePainter.paintRadialReaction]
   /// may be used.
-  Animation<double> get reactionFocusFade => _reactionFocusFade;
-  late Animation<double> _reactionFocusFade;
+  CurvedAnimation get reactionFocusFade => _reactionFocusFade;
+  late CurvedAnimation _reactionFocusFade;
   late AnimationController _reactionFocusFadeController;
 
   /// Whether [value] of this control can be changed by user interaction.
@@ -203,9 +203,13 @@ mixin ToggleableStateMixin<S extends StatefulWidget> on TickerProviderStateMixin
   @override
   void dispose() {
     _positionController.dispose();
+    _position.dispose();
     _reactionController.dispose();
+    _reaction.dispose();
     _reactionHoverFadeController.dispose();
+    _reactionHoverFade.dispose();
     _reactionFocusFadeController.dispose();
+    _reactionFocusFade.dispose();
     super.dispose();
   }
 

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

@@ -25,7 +25,7 @@ class _ChildEntry {
   final AnimationController controller;
 
   // The (curved) animation being used to drive the transition.
-  final Animation<double> animation;
+  final CurvedAnimation animation;
 
   // The currently built transition for this child.
   Widget transition;
@@ -308,7 +308,7 @@ class _AnimatedSwitcherState extends State<AnimatedSwitcher> with TickerProvider
       reverseDuration: widget.reverseDuration,
       vsync: this,
     );
-    final Animation<double> animation = CurvedAnimation(
+    final CurvedAnimation animation = CurvedAnimation(
       parent: controller,
       curve: widget.switchInCurve,
       reverseCurve: widget.switchOutCurve,
@@ -331,7 +331,7 @@ class _AnimatedSwitcherState extends State<AnimatedSwitcher> with TickerProvider
     required Widget child,
     required AnimatedSwitcherTransitionBuilder builder,
     required AnimationController controller,
-    required Animation<double> animation,
+    required CurvedAnimation animation,
   }) {
     final _ChildEntry entry = _ChildEntry(
       widgetChild: child,
@@ -348,6 +348,7 @@ class _AnimatedSwitcherState extends State<AnimatedSwitcher> with TickerProvider
           _markChildWidgetCacheAsDirty();
         });
         controller.dispose();
+        animation.dispose();
       }
     });
     return entry;
@@ -376,9 +377,11 @@ class _AnimatedSwitcherState extends State<AnimatedSwitcher> with TickerProvider
   void dispose() {
     if (_currentEntry != null) {
       _currentEntry!.controller.dispose();
+      _currentEntry!.animation.dispose();
     }
     for (final _ChildEntry entry in _outgoingEntries) {
       entry.controller.dispose();
+      entry.animation.dispose();
     }
     super.dispose();
   }

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

@@ -313,12 +313,12 @@ class _GlowController extends ChangeNotifier {
     }
     _glowController = AnimationController(vsync: vsync)
       ..addStatusListener(_changePhase);
-    final Animation<double> decelerator = CurvedAnimation(
+    _decelerator = CurvedAnimation(
       parent: _glowController,
       curve: Curves.decelerate,
     )..addListener(notifyListeners);
-    _glowOpacity = decelerator.drive(_glowOpacityTween);
-    _glowSize = decelerator.drive(_glowSizeTween);
+    _glowOpacity = _decelerator.drive(_glowOpacityTween);
+    _glowSize = _decelerator.drive(_glowSizeTween);
     _displacementTicker = vsync.createTicker(_tickDisplacement);
   }
 
@@ -330,6 +330,7 @@ class _GlowController extends ChangeNotifier {
   double _paintOffsetScrollPixels = 0.0;
 
   // animation values
+  late final CurvedAnimation _decelerator;
   final Tween<double> _glowOpacityTween = Tween<double>(begin: 0.0, end: 0.0);
   late final Animation<double> _glowOpacity;
   final Tween<double> _glowSizeTween = Tween<double>(begin: 0.0, end: 0.0);
@@ -383,6 +384,7 @@ class _GlowController extends ChangeNotifier {
   @override
   void dispose() {
     _glowController.dispose();
+    _decelerator.dispose();
     _displacementTicker.dispose();
     _pullRecedeTimer?.cancel();
     super.dispose();

packages/flutter/test/widgets/overscroll_indicator_test.dart

@@ -6,7 +6,6 @@ import 'dart:math' as math;
 
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 final Matcher doesNotOverscroll = isNot(paints..circle());
 
@@ -293,8 +292,6 @@ void main() {
   });
 
   testWidgets('Nested overscrolls do not throw exceptions',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
-  experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
   (WidgetTester tester) async {
     await tester.pumpWidget(Directionality(
       textDirection: TextDirection.ltr,

packages/flutter/test/widgets/scrollable_restoration_test.dart

@@ -5,7 +5,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 void main() {
   testWidgets('CustomScrollView restoration', (WidgetTester tester) async {
@@ -264,8 +263,6 @@ void main() {
   });
 
   testWidgets('PageView restoration',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
-  experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
   (WidgetTester tester) async {
     await tester.pumpWidget(
       TestHarness(