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[cupertino/button.dart] CupertinoButton does not contain FocusNode and is not focusable. #144385

@davidhicks980

Description

@davidhicks980

Steps to reproduce

  1. Run example
  2. Try focusing CupertinoButton

This may be intentional, but I couldn't find a doc comment for it.

Expected results

Button should receive focus

Actual results

Button does not receive focus

Code sample

import 'package:flutter/cupertino.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return CupertinoApp(
      home: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            CupertinoSwitch(
              onChanged: (_) {},
              value: true,
            ),
            CupertinoButton.filled(
              onPressed: () {},
              child: Text('Button 2'),
            ),
            CupertinoSwitch(
              onChanged: (_) {},
              value: true,
            ),
          ],
        ),
      ),
    );
  }
}

Screenshots or Video

No response

Logs

No response

Flutter Doctor output

Doctor output
[✓] Flutter (Channel master, 3.19.0-2.0.pre.14, on macOS 14.0 23A344 darwin-arm64, locale en-US)
    • Flutter version 3.19.0-2.0.pre.14 on channel master at /Users/davidhicks/fvm/versions/master
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 29db9dbd44 (7 weeks ago), 2024-01-08 23:24:31 -0500
    • Engine revision 820645dbcc
    • Dart version 3.4.0 (build 3.4.0-4.0.dev)
    • DevTools version 2.31.0

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
    • Android SDK at /Users/davidhicks/Library/Android/sdk
    • Platform android-34, build-tools 33.0.0
    • ANDROID_HOME = /Users/davidhicks/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.7+0-17.0.7b1000.6-10550314)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.2)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15C500b
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2023.1)
    • 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 17.0.7+0-17.0.7b1000.6-10550314)

[✓] VS Code (version 1.86.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.83.20240201

[✓] Connected device (2 available)
    • macOS (desktop) • macos  • darwin-arm64   • macOS 14.0 23A344 darwin-arm64
    • Chrome (web)    • chrome • web-javascript • Google Chrome 122.0.6261.69
    ! Error: Browsing on the local area network for David’s iPhone. Ensure the device is unlocked and attached with a
      cable or associated with the same local area network as this Mac.
      The device must be opted into Developer Mode to connect wirelessly. (code -27)

[✓] Network resources
    • All expected network resources are available.

• No issues found!

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    f: cupertinoflutter/packages/flutter/cupertino repositoryf: focusFocus traversal, gaining or losing focusfound in release: 3.19Found to occur in 3.19found in release: 3.20Found to occur in 3.20frameworkflutter/packages/flutter repository. See also f: labels.has reproducible stepsThe issue has been confirmed reproducible and is ready to work onr: fixedIssue is closed as already fixed in a newer versionteam-designOwned by Design Languages team

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