iOS tap status bar to scroll up doesn't work with CustomScrollView #92119
Description
Steps to Reproduce
- Create an app with sample code below
- Scroll down, and then attempt to scroll to the top by tapping the status bar
Expected results:
The CustomScrollView should be scrolled to the top.
Actual results:
- If the scroll view is scrolling, then nothing happens
- If the scroll view is not scrolling, then nothing happens on the first tap but it works on the second tap
- If debugging, hot restarting the app causes the gesture to stop working entirely
See video:
tap_to_scroll_up_bug.mov
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
home: Scaffold(
body: CustomScrollView(
slivers: [
SliverAppBar(
title: Text(
'iOS Tap to Scroll up',
),
pinned: true,
),
SliverFillRemaining(
hasScrollBody: false,
child: Column(
children: [
Colors.green,
Colors.red,
Colors.blue,
Colors.black,
Colors.white
]
.map(
(c) => Container(
height: 300,
color: c,
),
)
.toList(),
),
),
],
),
),
);
}
}Logs
$ flutter doctor -v
[✓] Flutter (Channel stable, 2.5.1, on macOS 11.6 20G165 darwin-x64, locale en-US)
• Flutter version 2.5.1 at /Users/jonathan.joelson/repos/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision ffb2ecea52 (5 weeks ago), 2021-09-17 15:26:33 -0400
• Engine revision b3af521a05
• Dart version 2.14.2
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at /Users/jonathan.joelson/Library/Android/sdk
• Platform android-30, build-tools 30.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 13.0, Build version 13A233
• CocoaPods version 1.11.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 4.1)
• 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 1.8.0_242-release-1644-b3-6915495)
[✓] VS Code (version 1.61.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.27.0
[✓] Connected device (3 available)
• Pixel 4a (mobile) • 0B201JEC221560 • android-arm64 • Android 11 (API 30)
• iPhone 13 (mobile) • 790573B6-26D3-4BB5-A18B-087D763036DF • ios • com.apple.CoreSimulator.SimRuntime.iOS-15-0 (simulator)
• Chrome (web) • chrome • web-javascript • Google Chrome 94.0.4606.81
• No issues found!