StretchingOverscrollIndicator: frozen overscroll animation #146277
Description
Steps to reproduce
This bug is not easy to reproduce but I observed it on different devices.
It only happens with a certain combination of screen size, text scale, and keyboard height.
How I reproduced it:
- Set up a Pixel 6 Pro emulator (Android 13.0) with default settings and GBoard keyboard
- Set keyboard height to "Extra-tall"
- Run the code sample below
- Tap on the 'Press me' button and wait
- Tap it again if needed
Expected results
Overscroll animation does not freeze and finishes animating.
Content is not stretched.
Red container looks like a square.
Actual results
Overscroll animation may freeze. When this happens:
- Content looks stretched.
- Red container does not look like a square.
Code sample
Code sample
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
brightness: Brightness.light,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _focusNode1 = FocusNode();
final _focusNode2 = FocusNode();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Align(
alignment: Alignment.bottomCenter,
child: MediaQuery(
data: MediaQuery.of(context).copyWith(textScaleFactor: 1.0),
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
const SizedBox(height: 350),
Container(
width: 50,
color: Colors.red,
height: 50,
),
TextButton(
onPressed: _onPressed,
child: const Text('Press me'),
),
_TestFormField(
focusNode: _focusNode1, type: TextInputType.emailAddress),
_TestFormField(
focusNode: _focusNode2, type: TextInputType.phone),
const SizedBox(
height: 51.5,
),
],
),
),
),
),
);
}
Future<void> _onPressed() async {
await Clipboard.setData(const ClipboardData(text: ''));
_focusNode2.requestFocus();
await Future.delayed(const Duration(milliseconds: 1000));
_focusNode1.requestFocus();
await Future.delayed(const Duration(milliseconds: 1000));
_focusNode2.requestFocus();
await Future.delayed(const Duration(milliseconds: 1000));
_focusNode2.requestFocus();
}
}
class _TestFormField extends StatelessWidget {
const _TestFormField({this.type, this.focusNode});
final TextInputType? type;
final FocusNode? focusNode;
@override
Widget build(BuildContext context) {
return TextFormField(
focusNode: focusNode,
initialValue: '123456789',
keyboardType: type,
);
}
}
Screenshots or Video
Screenshots / Video demonstration
Screen.Recording.2024-04-04.at.16.07.43.mov
Logs
Logs
Flutter Doctor output
Doctor output
flutter doctor -v
[!] Flutter (Channel master, 3.22.0-4.0.pre.36, on macOS 14.4.1 23E224
darwin-arm64, locale en-GB)
• Flutter version 3.22.0-4.0.pre.36 on channel master at
/Users/gilnobrega/fvm/versions/custom_local
! Warning: `dart` on your path resolves to
/opt/homebrew/Cellar/dart/2.17.6/libexec/bin/dart, which is not inside
your current Flutter SDK checkout at
/Users/gilnobrega/fvm/versions/custom_local. Consider adding
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Set environment variable "FLUTTER_GIT_URL" to
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• Framework revision ac2ca9347c (6 hours ago), 2024-04-04 05:09:20 -0400
• Engine revision 4303dc0d7a
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• Android SDK at /Users/gilnobrega/Library/Android/sdk
• Platform android-34, build-tools 33.0.0
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• Java version OpenJDK Runtime Environment (build
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[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
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• Android Studio at /Applications/Android Studio.app/Contents
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• VS Code at /Applications/Visual Studio Code.app/Contents
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[✓] Connected device (4 available)
• sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64 •
Android 13 (API 33) (emulator)
• macOS (desktop) • macos • darwin-arm64 •
macOS 14.4.1 23E224 darwin-arm64
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Google Chrome 123.0.6312.106
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