| // 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. |
| |
| import 'package:flutter/animation.dart'; |
| import 'package:flutter/scheduler.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| |
| void main() { |
| test('Disposing controller removes listeners to avoid memory leaks', () { |
| final _TestAnimationController controller = _TestAnimationController( |
| duration: const Duration(milliseconds: 100), |
| vsync: const TestVSync(), |
| ); |
| int statusListener = 0; |
| int listener = 0; |
| controller.addListener(() { |
| listener++; |
| }); |
| controller.addStatusListener((AnimationStatus _) { |
| statusListener++; |
| }); |
| expect(statusListener, 0); |
| expect(listener, 0); |
| |
| controller.publicNotifyListeners(); |
| controller.publicNotifyStatusListeners(AnimationStatus.completed); |
| expect(statusListener, 1); |
| expect(listener, 1); |
| |
| controller.dispose(); |
| controller.publicNotifyListeners(); |
| controller.publicNotifyStatusListeners(AnimationStatus.completed); |
| expect(statusListener, 1); |
| expect(listener, 1); |
| }); |
| } |
| |
| class _TestAnimationController extends AnimationController { |
| _TestAnimationController({ |
| double? value, |
| Duration? duration, |
| Duration? reverseDuration, |
| String? debugLabel, |
| double lowerBound = 0.0, |
| double upperBound = 1.0, |
| AnimationBehavior animationBehavior = AnimationBehavior.normal, |
| required TickerProvider vsync, |
| }) : super( |
| value: value, |
| duration: duration, |
| reverseDuration: reverseDuration, |
| debugLabel: debugLabel, |
| lowerBound: lowerBound, |
| upperBound: upperBound, |
| animationBehavior: animationBehavior, |
| vsync: vsync, |
| ); |
| |
| void publicNotifyListeners() { |
| super.notifyListeners(); |
| } |
| |
| void publicNotifyStatusListeners(AnimationStatus status) { |
| super.notifyStatusListeners(status); |
| } |
| } |