In second Scaffold in an Overlay, the AppBar does not response to gesture #175062
Description
Steps to reproduce
This bug only appears on iOS, or on Android with ThemeData(platform: TargetPlatform.iOS).
If we push a second Scaffold of a smaller size to the overlay, with primary set to false.
The visual is correct, but the AppBar does not response to any gesture, buttons cannot be used.
Expected results
Second Scaffold should work as normal.
Actual results
The AppBar of the scaffold does not accept touch.
Code sample
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(OverlayApp());
}
class OverlayApp extends StatelessWidget {
const OverlayApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(platform: TargetPlatform.macOS),
home: Scaffold(
appBar: AppBar(title: const Text('Example')),
body: SizedBox.expand(),
floatingActionButton: Builder(
builder: (context) {
return FloatingActionButton(
onPressed: () {
OverlayEntry? entry = OverlayEntry(
builder: (BuildContext context) {
return Center(
child: SizedBox(
width: 300,
height: 500,
child: DecoratedBox(
position: DecorationPosition.foreground,
decoration: BoxDecoration(
border: Border.all(color: Colors.black, width: 2),
borderRadius: BorderRadius.circular(8),
),
child: Scaffold2(),
),
),
);
},
);
Overlay.of(context).insert(entry);
},
child: const Icon(Icons.add),
);
},
),
),
);
}
}
class Scaffold2 extends StatelessWidget {
const Scaffold2({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
primary: false,
appBar: AppBar(
title: const Text('Title'),
backgroundColor: Colors.green.withValues(alpha: 0.5),
primary: false,
actions: <Widget>[
IconButton(
onPressed: () {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('This is a snackbar')),
);
},
icon: Icon(Icons.info),
),
],
),
body: SizedBox.expand(),
);
}
}
Flutter Doctor output
Doctor output
Flutter (Channel main, 3.36.0-1.0.pre-450, on macOS 15.6.1 24G90 darwin-arm64, locale en-AU) [✓] Flutter (Channel stable, 3.35.1, on macOS 15.6.1 24G90 darwin-arm64, locale en-AU)