SliverMainAxisGroup does not handle scrollOffsetCorrection #174368
Description
Steps to reproduce
- Display a
SliverListinSliverMainAxisGroup. - Scroll to middle/end of list.
- Press an item to unhide elements
- Scroll up, list breaks, doesn't show all elements
The example issue is similar to #59819 but on SliverMainAxisGroup.
Expected results
The items display is consistent during the scroll.
Actual results
The scroll position is not consistent.
Code sample
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(
MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('Sliver Example'), backgroundColor: Colors.blue),
body: const _MyAnomalyWidget(),
),
),
);
}
class _MyAnomalyWidget extends StatefulWidget {
const _MyAnomalyWidget();
@override
State<_MyAnomalyWidget> createState() => __MyAnomalyWidgetState();
}
class __MyAnomalyWidgetState extends State<_MyAnomalyWidget> {
bool skip = true;
@override
Widget build(BuildContext context) {
Widget buildItem(BuildContext context, int index) {
return !skip || index.isEven
? InkWell(
onTap: () => setState(() => skip = !skip),
child: Card(
child: ListTile(title: Text('item$index', style: const TextStyle(fontSize: 80))),
),
)
: Container();
}
return CustomScrollView(
slivers: <Widget>[
SliverMainAxisGroup(
slivers: <Widget>[
SliverList(delegate: SliverChildBuilderDelegate(buildItem, childCount: 30)),
],
),
],
);
}
}Screenshots or Video
Screenshots / Video demonstration
issue.mp4
Logs
Logs
Restarted application in 668ms.
D/EGL_emulation(15514): app_time_stats: avg=726.62ms min=0.77ms max=2903.44ms count=4
D/EGL_emulation(15514): app_time_stats: avg=11344.32ms min=11344.32ms max=11344.32ms count=1
D/EGL_emulation(15514): app_time_stats: avg=7.33ms min=1.01ms max=30.22ms count=58
D/EGL_emulation(15514): app_time_stats: avg=12.83ms min=0.91ms max=28.78ms count=58
D/EGL_emulation(15514): app_time_stats: avg=64.03ms min=9.10ms max=1124.57ms count=24
D/EGL_emulation(15514): app_time_stats: avg=89.59ms min=11.72ms max=1535.21ms count=24
D/EGL_emulation(15514): app_time_stats: avg=16.25ms min=7.17ms max=25.81ms count=61
D/EGL_emulation(15514): app_time_stats: avg=14.22ms min=1.27ms max=32.84ms count=58
D/EGL_emulation(15514): app_time_stats: avg=8.02ms min=0.97ms max=178.13ms count=48
D/EGL_emulation(15514): app_time_stats: avg=45.39ms min=1.08ms max=1236.98ms count=39
D/EGL_emulation(15514): app_time_stats: avg=9.85ms min=0.98ms max=25.00ms count=60
D/EGL_emulation(15514): app_time_stats: avg=2.16ms min=0.89ms max=9.06ms count=61
D/EGL_emulation(15514): app_time_stats: avg=17.63ms min=0.88ms max=544.41ms count=48
D/EGL_emulation(15514): app_time_stats: avg=21.86ms min=10.32ms max=119.29ms count=47
D/EGL_emulation(15514): app_time_stats: avg=163.83ms min=17.87ms max=882.79ms count=7
D/EGL_emulation(15514): app_time_stats: avg=69.51ms min=7.27ms max=1348.90ms count=25
D/EGL_emulation(15514): app_time_stats: avg=16.26ms min=7.27ms max=25.79ms count=61
D/EGL_emulation(15514): app_time_stats: avg=15.92ms min=9.89ms max=22.39ms count=61
D/EGL_emulation(15514): app_time_stats: avg=16.64ms min=4.30ms max=36.11ms count=58
D/EGL_emulation(15514): app_time_stats: avg=35.44ms min=6.49ms max=615.66ms count=33
D/EGL_emulation(15514): app_time_stats: avg=13.20ms min=1.13ms max=51.64ms count=56Flutter Doctor output
Doctor output
[✓] Flutter (Channel master, 3.33.0-1.0.pre-1252, on macOS 15.6 24G84 darwin-arm64, locale fr-FR) [2,3s]
• Flutter version 3.33.0-1.0.pre-1252 on channel master at /Users/emmanuel_lefebvre/fvm/versions/master
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision fc28781423 (3 weeks ago), 2025-08-03 10:36:42 -0400
• Engine revision fc28781423
• Dart version 3.10.0 (build 3.10.0-59.0.dev)
• DevTools version 2.48.0
• Pub download mirror https://artifact.socrate.vsct.fr/artifactory/api/pub/all-pub
• Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, cli-animations, enable-native-assets
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.1) [1 689ms]
• Android SDK at /Users/emmanuel_lefebvre/Library/Android/sdk
• Emulator version 35.5.10.0 (build_id 13402964) (CL:N/A)
• Platform android-36, build-tools 35.0.1
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
This is the JDK bundled with the latest Android Studio installation on this machine.
To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
• Java version OpenJDK Runtime Environment (build 21.0.5+-13047016-b750.29)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 16.4) [1 405ms]
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16F6
• CocoaPods version 1.16.2
[✓] Chrome - develop for the web [7ms]
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Connected device (3 available) [6,8s]
• sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64 • Android 15 (API 35) (emulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 15.6 24G84 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 139.0.7258.139
! Error: Browsing on the local area network for iPhone XS. Ensure the device is unlocked and attached with a cable or associated with the same local area network as this Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)
[✓] Network resources [266ms]
• All expected network resources are available.Metadata
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Important issues not at the top of the work listViewports, list views, slivers, etc.Found to occur in 3.33Found to occur in 3.35flutter/packages/flutter repository. See also f: labels.The issue has been confirmed reproducible and is ready to work onIssue is closed as already fixed in a newer versionOwned by Framework teamTriaged by Framework team