Unexpected Android physical back button pop behavior when using PopScope with CupertinoTabView #139050
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
I found this issue by WillPopScope to PopScope migration work.
- Execute sample app with Android device or Emulator
- Press physical back button
Expected results
Do nothing. Because canPop value of PopScope is false. I want to prevent exit app with just single physical back button click.
Actual results
Pop page and show blank page and route history is empty.
This caused by CupertinoTabView - NavigatorPopHandler.
Code sample
Code sample
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _index = 0;
@override
Widget build(BuildContext context) {
return PopScope(
canPop: false,
child: CupertinoTabScaffold(
tabBar: CupertinoTabBar(
currentIndex: _index,
activeColor: Colors.blue,
inactiveColor: Colors.black12,
onTap: (index) {
setState(() {
_index = index;
});
},
items: const [
BottomNavigationBarItem(
label: 'abc', icon: Icon(Icons.abc)),
BottomNavigationBarItem(
label: 'outlined', icon: Icon(Icons.abc_outlined))
],
),
tabBuilder: (BuildContext context, int index) {
return CupertinoTabView(
builder: (BuildContext context) {
return _getPage(index);
},
);
},
),
);
}
Widget _getPage(int index) {
return [
Container(
alignment: Alignment.center,
child: const Text('First Page'),
),
Container(
alignment: Alignment.center,
child: const Text('Second Page'),
),
].elementAt(index);
}
}
Screenshots or Video
Screenshots / Video demonstration
Screen_Recording_20231127_174009.mp4
Logs
No response
Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.16.0, on macOS 14.0 23A344 darwin-arm64, locale ko-KR)
• Flutter version 3.16.0 on channel stable at /Users/jeong-uklee/Development/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision db7ef5bf9f (12 days ago), 2023-11-15 11:25:44 -0800
• Engine revision 74d16627b9
• Dart version 3.2.0
• DevTools version 2.28.2
[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
• Android SDK at /Users/jeong-uklee/Library/Android/sdk
• Platform android-33, build-tools 33.0.0
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 15.0.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 15A507
• CocoaPods version 1.12.0
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2022.3)
• 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 17.0.6+0-17.0.6b829.9-10027231)
[✓] VS Code (version 1.83.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension can be installed from:
🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (3 available)
• SM G991N (mobile) • R3CR30P353Y • android-arm64 • Android 13 (API 33)
• macOS (desktop) • macos • darwin-arm64 • macOS 14.0 23A344 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 119.0.6045.159
[✓] Network resources
• All expected network resources are available.
• No issues found!