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Scrollbar hittest penetration issue #99324
Description
Code
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
scrollBehavior: MyScrollBehavior(),
home: Scaffold(
body: Center(
child: SizedBox(
width: 200,
height: 200,
child: Scrollbar(
// interactive: false,
thumbVisibility: true,
trackVisibility: true,
child: SingleChildScrollView(
child: GestureDetector(
onTap: () => print('onTap'),
child: const FlutterLogo(
size: 300,
),
),
),
),
),
),
),
);
}
}
class MyScrollBehavior extends ScrollBehavior {
@override
Widget buildScrollbar(BuildContext context, Widget child, ScrollableDetails details) {
return child;
}
}Expect
Do not output onTap log if tap the track rectangle area.
Actual
Output onTap log if tap on the scrollbar track area.
Activity
maheshj01 commentedon Mar 1, 2022
Hi @xu-baolin, Thanks for filing the issue. I am able to reproduce the issue on the latest master channel tapping on the scrollBar track triggers onTap on the child. This is reproducible on mobile platforms too.
Screen.Recording.2022-03-01.at.5.13.30.PM.mov
flutter doctor -v (mac)
github-actions commentedon Mar 17, 2022
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.