fix fade_transition issue (#157663)

Fixes: #157312

A simpler way to reproduce this issue:
```dart
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with SingleTickerProviderStateMixin {
  late AnimationController controller = AnimationController(
    duration: const Duration(seconds: 2),
    value: 1,
    vsync: this,
  );
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: FadeTransition(
            opacity: controller,
            child: Builder(
              builder: (context) {
                return GestureDetector(
                  onTap: () {
                    controller.value = 0.5;
                    context.findRenderObject()?.markNeedsPaint();
                    controller.value = 0;
                  },
                  child: Text("Click"),
                );
              },
            ),
          ),
        ),
      ),
    );
  }
}

```
The main reason is that updating the opacity with
`markNeedsCompositedLayerUpdate` followed by `markNeedsPaint` causes it
to be added to `owner!._nodesNeedingPaint` twice.

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [ ] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md

---------

Co-authored-by: Nate Wilson <nathan.wilson1232@gmail.com>
Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>
This commit is contained in:
yim
2024-12-11 08:54:07 +08:00
committed by GitHub
parent df330d5949
commit 7814641bd8
3 changed files with 41 additions and 2 deletions

View File

@@ -2958,7 +2958,7 @@ abstract class RenderObject with DiagnosticableTreeMixin implements HitTestTarge
if (!isRepaintBoundary && _wasRepaintBoundary) {
_needsPaint = false;
_needsCompositedLayerUpdate = false;
owner?._nodesNeedingPaint.remove(this);
owner?._nodesNeedingPaint.removeWhere((RenderObject t) => identical(t, this));
_needsCompositingBitsUpdate = false;
markNeedsPaint();
} else if (oldNeedsCompositing != _needsCompositing) {

View File

@@ -378,6 +378,25 @@ void main() {
expect(calledBack, true);
});
test('Change isRepaintBoundary after both markNeedsCompositedLayerUpdate and markNeedsPaint', () {
List<FlutterErrorDetails?>? caughtErrors;
TestRenderingFlutterBinding.instance.onErrors = () {
caughtErrors = TestRenderingFlutterBinding.instance.takeAllFlutterErrorDetails().toList();
};
final TestRenderObject object = TestRenderObject(allowPaintBounds: true);
object.isRepaintBoundary = true;
object.attach(TestRenderingFlutterBinding.instance.pipelineOwner);
object.layout(const BoxConstraints.tightForFinite());
PaintingContext.repaintCompositedChild(object, debugAlsoPaintedParent: true);
object.markNeedsCompositedLayerUpdate();
object.markNeedsPaint();
object.isRepaintBoundary = false;
object.markNeedsCompositingBitsUpdate();
TestRenderingFlutterBinding.instance.pumpCompleteFrame();
expect(caughtErrors, isNull);
});
test('ContainerParentDataMixin asserts parentData type', () {
final TestRenderObject renderObject = TestRenderObjectWithoutSetupParentData();
final TestRenderObject child = TestRenderObject();

View File

@@ -10,7 +10,7 @@ void main() {
testWidgets('FadeTransition', (WidgetTester tester) async {
final DebugPrintCallback oldPrint = debugPrint;
final List<String> log = <String>[];
debugPrint = (String? message, { int? wrapWidth }) {
debugPrint = (String? message, {int? wrapWidth}) {
log.add(message!);
};
debugPrintBuildScope = true;
@@ -33,4 +33,24 @@ void main() {
debugPrint = oldPrint;
debugPrintBuildScope = false;
});
// Regression test for https://github.com/flutter/flutter/issues/157312
testWidgets('No exception when calling markNeedsPaint during opacity changes', (WidgetTester tester) async {
final GlobalKey key = GlobalKey();
final AnimationController controller = AnimationController(
vsync: const TestVSync(),
value: 1,
duration: const Duration(seconds: 2),
);
addTearDown(controller.dispose);
await tester.pumpWidget(FadeTransition(
opacity: controller,
child: Placeholder(key: key),
));
controller.value = 0.5;
key.currentContext?.findRenderObject()?.markNeedsPaint();
controller.value = 0;
await tester.pump();
expect(tester.takeException(), isNull);
});
}