Export public API types from animation and physics libraries (#106757)

Author: a14n

dev/benchmarks/microbenchmarks/lib/geometry/curves_bench.dart

@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'dart:ui';
 import 'package:flutter/animation.dart';
 
 import '../common.dart';

packages/flutter/lib/animation.dart

@@ -160,6 +160,9 @@
 ///    explicit [Animation] to animate their properties.
 library animation;
 
+// AnimationController can throw TickerCanceled
+export 'package:flutter/scheduler.dart' show TickerCanceled;
+
 export 'src/animation/animation.dart';
 export 'src/animation/animation_controller.dart';
 export 'src/animation/animations.dart';

packages/flutter/lib/src/animation/animation.dart

@@ -7,6 +7,10 @@ import 'package:flutter/foundation.dart';
 
 import 'tween.dart';
 
+export 'dart:ui' show VoidCallback;
+
+export 'tween.dart' show Animatable;
+
 // Examples can assume:
 // late AnimationController _controller;
 

packages/flutter/lib/src/animation/animation_controller.dart

@@ -14,7 +14,11 @@ import 'animation.dart';
 import 'curves.dart';
 import 'listener_helpers.dart';
 
-export 'package:flutter/scheduler.dart' show TickerFuture, TickerCanceled;
+export 'package:flutter/physics.dart' show Simulation, SpringDescription;
+export 'package:flutter/scheduler.dart' show TickerFuture, TickerProvider;
+
+export 'animation.dart' show Animation, AnimationStatus;
+export 'curves.dart' show Curve;
 
 // Examples can assume:
 // late AnimationController _controller, fadeAnimationController, sizeAnimationController;

packages/flutter/lib/src/animation/animations.dart

@@ -11,6 +11,11 @@ import 'animation.dart';
 import 'curves.dart';
 import 'listener_helpers.dart';
 
+export 'dart:ui' show VoidCallback;
+
+export 'animation.dart' show Animation, AnimationStatus, AnimationStatusListener;
+export 'curves.dart' show Curve;
+
 // Examples can assume:
 // late AnimationController controller;
 

packages/flutter/lib/src/animation/curves.dart

@@ -8,6 +8,8 @@ import 'dart:ui';
 
 import 'package:flutter/foundation.dart';
 
+export 'dart:ui' show Offset;
+
 /// An abstract class providing an interface for evaluating a parametric curve.
 ///
 /// A parametric curve transforms a parameter (hence the name) `t` along a curve

packages/flutter/lib/src/animation/listener_helpers.dart

@@ -7,6 +7,10 @@ import 'package:flutter/foundation.dart';
 
 import 'animation.dart';
 
+export 'dart:ui' show VoidCallback;
+
+export 'animation.dart' show AnimationStatus, AnimationStatusListener;
+
 /// A mixin that helps listen to another object only when this object has registered listeners.
 ///
 /// This mixin provides implementations of [didRegisterListener] and [didUnregisterListener],

packages/flutter/lib/src/animation/tween.dart

@@ -2,13 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'dart:ui' show Color, Size, Rect;
+import 'dart:ui' show Color, Rect, Size;
 
 import 'package:flutter/foundation.dart';
 
-import 'animation.dart';
 import 'animations.dart';
-import 'curves.dart';
+
+export 'dart:ui' show Color, Rect, Size;
+
+export 'animation.dart' show Animation;
+export 'curves.dart' show Curve;
 
 // Examples can assume:
 // late Animation<Offset> _animation;

packages/flutter/lib/src/animation/tween_sequence.dart

@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-
-import 'animation.dart';
 import 'tween.dart';
 
+export 'tween.dart' show Animatable;
+
 // Examples can assume:
 // late AnimationController myAnimationController;
 

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

@@ -7,7 +7,6 @@ import 'dart:ui' show lerpDouble;
 
 import 'package:flutter/animation.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/painting.dart';
 
 // How close the begin and end points must be to an axis to be considered
 // vertical or horizontal.