SliverMainAxisGroup's childScrollOffset method not overridden #135407
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
- Run the code below
- Taps on the second blue tile
Expected results
The second blue tile should be at the top of the screen
Actual results
The first blue tile is at the top of the screen
I think it's because the childScrollOffset method of SliverMainAxisGroup is not overridden, therefore it always returns 0.0.
Code sample
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(const MaterialApp(home: MyHome()));
}
class MyHome extends StatelessWidget {
const MyHome({super.key});
@override
Widget build(BuildContext context) {
return const Scaffold(
body: CustomScrollView(
slivers: [
Tile(color: Colors.green),
Tile(color: Colors.greenAccent),
Tile(color: Colors.green),
Tile(color: Colors.greenAccent),
Tile(color: Colors.green),
Tile(color: Colors.greenAccent),
SliverMainAxisGroup(slivers: [
Tile(color: Colors.blue),
Tile(color: Colors.lightBlueAccent),
Tile(color: Colors.blue),
Tile(color: Colors.lightBlueAccent),
Tile(color: Colors.blue),
Tile(color: Colors.lightBlueAccent),
]),
Tile(color: Colors.yellow),
Tile(color: Colors.yellowAccent),
Tile(color: Colors.yellow),
Tile(color: Colors.yellowAccent),
Tile(color: Colors.yellow),
Tile(color: Colors.yellowAccent),
],
),
);
}
}
class Tile extends StatelessWidget {
const Tile({
super.key,
required this.color,
});
final Color color;
@override
Widget build(BuildContext context) {
return SliverToBoxAdapter(
child: GestureDetector(
onTap: () {
Scrollable.ensureVisible(context);
},
child: SizedBox(
height: 100,
child: ColoredBox(
color: color,
),
),
),
);
}
}Screenshots or Video
Screenshots / Video demonstration
Logs
Logs
Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.13.2, on macOS 12.5.1 21G83 darwin-arm64, locale fr-FR)
• Flutter version 3.13.2 on channel stable at /Users/xxx/dev/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision ff5b5b5fa6 (5 weeks ago), 2023-08-24 08:12:28 -0500
• Engine revision b20183e040
• Dart version 3.1.0
• DevTools version 2.25.0
[✓] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
• Android SDK at /Users/xxx/Library/Android/sdk
• Platform android-33, build-tools 32.1.0-rc1
• Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.11+0-b60-7772763)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 14.0)
• Xcode at /Applications/Xcode-14.0.0.app/Contents/Developer
• Build 14A309
• CocoaPods version 1.11.3
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2021.1)
• Android Studio at /Applications/Android Studio.app/Contents
• 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 11.0.11+0-b60-7772763)
[✓] VS Code (version 1.75.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.72.0
[✓] Connected device (4 available)
• IN2023 (mobile) • 87950fce • android-arm64 • Android 13 (API 33)
• iPhone 13 Pro Max (mobile) • F7BD4E2B-91F5-47DA-9594-0D808C2C260C • ios • com.apple.CoreSimulator.SimRuntime.iOS-15-5 (simulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 12.5.1 21G83 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 117.0.5938.92
[✓] Network resources
• All expected network resources are available.
• No issues found!