PopScope cannot exit the app

[ilgnefz]

Steps to reproduce

The above code is from example, which changes the navigation method from One to Two

Navigator.of(context).pushReplacementNamed('/two');

Expected results

The app will exit

Actual results

The app went black and did not exit

Code sample

Code sample

import 'package:flutter/material.dart';

void main() => runApp(const NavigatorPopHandlerApp());

class NavigatorPopHandlerApp extends StatelessWidget {
  const NavigatorPopHandlerApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      initialRoute: '/home',
      routes: <String, WidgetBuilder>{
        '/home': (BuildContext context) => const _HomePage(),
        '/two': (BuildContext context) => const _PageTwo(),
      },
    );
  }
}

class _HomePage extends StatefulWidget {
  const _HomePage();

  @override
  State<_HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<_HomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text('Page One'),
            TextButton(
              onPressed: () {
                Navigator.of(context).pushReplacementNamed('/two');
              },
              child: const Text('Next page'),
            ),
          ],
        ),
      ),
    );
  }
}

class _PageTwo extends StatefulWidget {
  const _PageTwo();

  @override
  State<_PageTwo> createState() => _PageTwoState();
}

class _PageTwoState extends State<_PageTwo> {
  /// Shows a dialog and resolves to true when the user has indicated that they
  /// want to pop.
  ///
  /// A return value of null indicates a desire not to pop, such as when the
  /// user has dismissed the modal without tapping a button.
  Future<bool?> _showBackDialog() {
    return showDialog<bool>(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: const Text('Are you sure?'),
          content: const Text(
            'Are you sure you want to leave this page?',
          ),
          actions: <Widget>[
            TextButton(
              style: TextButton.styleFrom(
                textStyle: Theme.of(context).textTheme.labelLarge,
              ),
              child: const Text('Nevermind'),
              onPressed: () {
                Navigator.pop(context, false);
              },
            ),
            TextButton(
              style: TextButton.styleFrom(
                textStyle: Theme.of(context).textTheme.labelLarge,
              ),
              child: const Text('Leave'),
              onPressed: () {
                Navigator.pop(context, true);
              },
            ),
          ],
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text('Page Two'),
            PopScope(
              canPop: false,
              onPopInvoked: (bool didPop) async {
                if (didPop) {
                  return;
                }
                final bool shouldPop = await _showBackDialog() ?? false;
                if (context.mounted && shouldPop) {
                  Navigator.pop(context);
                }
              },
              child: TextButton(
                onPressed: () async {
                  final bool shouldPop = await _showBackDialog() ?? false;
                  if (context.mounted && shouldPop) {
                    Navigator.pop(context);
                  }
                },
                child: const Text('Go back'),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Screenshots or Video

Screenshots / Video demonstration

Logs

Logs

[Paste your logs here]

Flutter Doctor output

Doctor output

Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
[√] Flutter (Channel stable, 3.19.3, on Microsoft Windows [版本 10.0.19045.4170], locale zh-CN)
    • Flutter version 3.19.3 on channel stable at D:\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision ba39319843 (9 days ago), 2024-03-07 15:22:21 -0600
    • Engine revision 2e4ba9c6fb
    • Dart version 3.3.1
    • DevTools version 2.31.1
    • Pub download mirror https://pub.flutter-io.cn
    • Flutter download mirror https://storage.flutter-io.cn

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at D:\Android\Sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: D:\Android\Android Studio\jbr\bin\java
    • Java version OpenJDK Runtime Environment (build 17.0.9+0--11185874)
    • All Android licenses accepted.

[X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.8.3)
    • Visual Studio at D:\Microsoft Visual Studio\2022\Community
    • Visual Studio Community 2022 version 17.8.34330.188
    • Windows 10 SDK version 10.0.22621.0

[√] Android Studio (version 2023.2)
    • Android Studio at D:\Android\Android Studio
    • 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 17.0.9+0--11185874)

[√] Connected device (3 available)
    • sdk gphone64 x86 64 (mobile) • emulator-5554 • android-x64    • Android 14 (API 34) (emulator)
    • Windows (desktop)            • windows       • windows-x64    • Microsoft Windows [版本 10.0.19045.4170]
    • Edge (web)                   • edge          • web-javascript • Microsoft Edge 121.0.2277.106

[!] Network resources
    X An HTTP error occurred while checking "https://github.com/": Connection closed before full header was received

! Doctor found issues in 2 categories.

[ilgnefz]

GIF： https://github-production-user-asset-6210df.s3.amazonaws.com/58471330/313457157-3a9fd7a7-c600-451d-85d2-7d0fc5dc4d56.gif?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAVCODYLSA53PQK4ZA%2F20240317%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240317T084135Z&X-Amz-Expires=300&X-Amz-Signature=22979fd3c6a67b5efe0cae624d3083515c7c72bb5057c3c07696435d9c88fe71&X-Amz-SignedHeaders=host&actor_id=58471330&key_id=0&repo_id=31792824

[faisalansari0367]

I am facing the same issue with Go router.
when the last page is in the stack it should close the app on context.pop() (in case of go router) or Navigator.pop(context).
the app is moving to the background and not terminating.
I even tried SystemNavigator.pop() it's not working as well.

[CodesbyRobot]

Try

await SystemChannels.platform.invokeMethod('SystemNavigator.pop')

[faisalansari0367]

Try

await SystemChannels.platform.invokeMethod('SystemNavigator.pop')

Under the hood SystemNavigator.pop() is calling the same thing then what's the difference between this and that

[CodesbyRobot]

In theory nothing, in practice should work?

[darshankawar]

@ilgnefz
Check https://docs.flutter.dev/release/breaking-changes/android-predictive-back and see if it helps in your case or not.

[github-actions]

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