Skip to content

Stretching overscroll keeps stretching when change overscroll direction #88741

@nt4f04uNd

Description

@nt4f04uNd

Steps to Reproduce

Run the code sample and drag the list up and down so the overscroll direction constantly changes

Expected results: list stretches in one direction, then in the opposite. I didn't actually check how it's in Android 12 since I didn't set up the distro yet, but I think this is how it would look like.

Actual results: list jumps when drag direction changes, and constantly keeps stretching

Code sample
import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(
        androidOverscrollIndicator: AndroidOverscrollIndicator.stretch,
      ),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: SafeArea(
          child: Center(
            child: MyWidget(),
          ),
        ),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemBuilder: (context, index) => Container(
        height: 50,
        color: Colors.amber[(index % 9 + 1) * 100],
        child: const Center(child: Text('Entry A')),
      ),
      itemCount: 10,
      padding: const EdgeInsets.all(8),
    );
  }
}
flutter doctor -v
[√] Flutter (Channel master, 2.5.0-7.0.pre.83, on Microsoft Windows [Version 10.0.19041.1110], locale ru-RU)
    • Flutter version 2.5.0-7.0.pre.83 at C:\dev\src\flutter
    • Upstream repository [email protected]:nt4f04und/flutter.git
    • FLUTTER_GIT_URL = [email protected]:nt4f04und/flutter.git
    • Framework revision 06be7e5392 (4 hours ago), 2021-08-15 14:37:02 -0400
    • Engine revision 1af0a20793
    • Dart version 2.15.0 (build 2.15.0-15.0.dev)

[!] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at C:\Users\danya\AppData\Local\Android\sdk
    X cmdline-tools component is missing
      Run `path/to/sdkmanager --install "cmdline-tools;latest"`
      See https://developer.android.com/studio/command-line for more details.
    X Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.7.7)
    • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
    • Visual Studio Community 2019 version 16.7.30621.155
    • Windows 10 SDK version 10.0.19041.0

[√] Android Studio (version 4.1)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] IntelliJ IDEA Community Edition (version 2020.3)
    • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.3.3
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart

[√] VS Code (version 1.59.0)
    • VS Code at C:\Users\danya\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.25.0

[√] Connected device (4 available)
    • Redmi Note 5 (mobile)   • 40c9f14       • android-arm64  • Android 9 (API 28)
    • sdk gphone x86 (mobile) • emulator-5554 • android-x86    • Android 11 (API 30) (emulator)
    • Windows (desktop)       • windows       • windows-x64    • Microsoft Windows [Version 10.0.19041.1110]
    • Chrome (web)            • chrome        • web-javascript • Google Chrome 92.0.4515.131
    • Edge (web)              • edge          • web-javascript • Microsoft Edge 92.0.902.67

! Doctor found issues in 1 category.
Desktop.2021.08.23.-.23.35.33.257.mp4

Metadata

Metadata

Assignees

No one assigned

    Labels

    a: fidelityMatching the OEM platforms betterf: material designflutter/packages/flutter/material repository.f: scrollingViewports, list views, slivers, etc.found in release: 2.5Found to occur in 2.5frameworkflutter/packages/flutter repository. See also f: labels.has reproducible stepsThe issue has been confirmed reproducible and is ready to work onplatform-androidAndroid applications specificallyr: fixedIssue is closed as already fixed in a newer version

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions