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CarouselView children are not clickable #154701

@erickjtorres

Description

@erickjtorres

Steps to reproduce

Create any CarouselView with children that are clickable.

Expected results

I expect to be able to trigger the onTap of the children passed into the CarouselView.

Actual results

Nothing happens when I click on the items. I am forced to use CarouseView's onTap. This is limiting and restricts further customization. What if I want each item to have its own onTap behavior but want to avoid writing conditional logic on the onTap. Perhaps I might want to trigger different actions depending on where a user might click on a single item.

If you run the following code in DartPad you can see that the print statement never gets called really

Code sample

Code sample
import 'package:flutter/material.dart';

/// Flutter code sample for [Carousel].

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Carousel Sample'),
        ),
        body: const CarouselExample(),
      ),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Center(
      child: ConstrainedBox(
        constraints: const BoxConstraints(maxHeight: 200),
        child: CarouselView(
          itemExtent: 330,
          shrinkExtent: 200,
          // Reduced the number of items for simplicity
          children: List<Widget>.generate(5, (int index) {
            return GestureDetector(
              onTap: () {
                print('Clicked on Item $index');
              },
              child: UncontainedLayoutCard(index: index, label: 'Item $index'),
            );
          }),
        ),
      ),
    );
  }
}

class UncontainedLayoutCard extends StatelessWidget {
  const UncontainedLayoutCard({
    super.key,
    required this.index,
    required this.label,
  });

  final int index;
  final String label;

  @override
  Widget build(BuildContext context) {
    return ColoredBox(
      color: Colors.primaries[index % Colors.primaries.length].withOpacity(0.5),
      child: Center(
        child: Text(
          label,
          style: const TextStyle(color: Colors.white, fontSize: 20),
          overflow: TextOverflow.clip,
          softWrap: false,
        ),
      ),
    );
  }
}

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Flutter Doctor output

Doctor output
[✓] Flutter (Channel stable, 3.24.2, on macOS 15.1 24B5035e darwin-arm64, locale en-US)
    • Flutter version 3.24.2 on channel stable at /Users/ericktorres-moreno/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 4cf269e36d (2 days ago), 2024-09-03 14:30:00 -0700
    • Engine revision a6bd3f1de1
    • Dart version 3.5.2
    • DevTools version 2.37.2

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/ericktorres-moreno/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • 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 16.1)
    • Xcode at /Applications/Xcode-beta.app/Contents/Developer
    • Build 16B5001e
    • CocoaPods version 1.15.2

[✓] 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 1.92.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.96.0

[✓] Connected device (2 available)
    • iPhone 15 Pro (mobile)     • ios            • com.apple.CoreSimulator.SimRuntime.iOS-18-1 (simulator)
    • Chrome (web)                    • chrome                               • web-javascript • Google Chrome 128.0.6613.120

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

• No issues found!

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    P2Important issues not at the top of the work listc: new featureNothing broken; request for a new capabilityc: proposalA detailed proposal for a change to Flutterf: material designflutter/packages/flutter/material repository.frameworkflutter/packages/flutter repository. See also f: labels.r: fixedIssue is closed as already fixed in a newer versionteam-designOwned by Design Languages teamtriaged-designTriaged by Design Languages teamwaiting for PR to land (fixed)A fix is in flight

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