How to Create a Group of Buttons with Flutter

Nov 28, 2021 | Programming

Welcome to the world of Flutter, where creating UI elements is a breeze! In this article, we’ll explore how to efficiently create a group of buttons using the GroupButton package. This package allows you to include Radio and CheckBox button models with customizable grouping types. Let the buttons make your app interactive!

Getting Started with GroupButton

To kick things off, follow these simple steps to integrate the GroupButton package into your Flutter project!

  • Add the Dependency: Open your pubspec.yaml file and add the GroupButton package:
  • dependencies:
      group_button: ^5.4.0
  • Import the Package: In your Dart file where you want to use the GroupButton, import the following:
  • import 'package:group_button/group_button.dart';
  • Simple Example: Here is a basic example of using the GroupButton:
  • GroupButton(
        isRadio: false,
        onSelected: (index, isSelected) => print('$index button is selected'),
        buttons: ['12:00', '13:00', '14:30', '18:00', '19:00', '21:40'],
    )

Controlling Your Buttons

With version 4.1.0 and above, control your Group Button easily using a controller. Let’s take a look:

final controller = GroupButtonController();
Column(
  children: [
    GroupButton.checkbox(
      controller: controller,
      buttons: ['12:00', '13:00', '14:00'],
      onSelected: (i, selected) => debugPrint('Button #$i $selected'),
    ),
    TextButton(
      onPressed: () => controller.selectIndex(1),
      child: const Text('Select 1 button'),
    ),
  ],
),

Custom Button Values

The new version (5.0.0) allows you to set custom button values, which can be various data types:

GroupButton(
  buttons: [DateTime(2022, 4, 9), DateTime(2022, 4, 10)],
),

Button Builders

Unleash your creativity with button builders that customize how your buttons appear:

  • buttonBuilder: Create a fully custom button based on the value parameter.
  • buttonIndexedBuilder: Customization based on button index.
  • buttonTextBuilder: Change the text of existing buttons while keeping their appearance.
  • buttonIndexedTextBuilder: Similar to buttonTextBuilder but based on the index.

Fully Customize Your Buttons

To engage in deeper customization of your buttons, use the GroupButtonOptions:

GroupButtonOptions(
  // Various customization options:
  selectedShadow: const [],
  selectedTextStyle: TextStyle(fontSize: 20, color: Colors.pink[900]),
  selectedColor: Colors.pink[100],
  unselectedShadow: const [],
  unselectedColor: Colors.amber[100],
  unselectedTextStyle: TextStyle(fontSize: 20, color: Colors.amber[900]),
  selectedBorderColor: Colors.pink[900],
  unselectedBorderColor: Colors.amber[900],
  borderRadius: BorderRadius.circular(100),
  spacing: 10,
  runSpacing: 10,
  groupingType: GroupingType.wrap,
  direction: Axis.horizontal,
  buttonHeight: 60,
  buttonWidth: 60,
  mainGroupAlignment: MainGroupAlignment.start,
  crossGroupAlignment: CrossGroupAlignment.start,
  groupRunAlignment: GroupRunAlignment.start,
  textAlign: TextAlign.center,
  textPadding: EdgeInsets.zero,
  alignment: Alignment.center,
  elevation: 0,
),

Troubleshooting

If you run into issues while implementing the GroupButton, here are some troubleshooting tips:

  • Ensure your dependencies are up to date. Sometimes versioning issues can lead to unexpected behavior.
  • Check for typos in your code, especially in imports or widget parameters that could prevent rendering.
  • If you have questions or need further assistance, feel free to look for help online or reach out to the community.

For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

GroupButton makes creating button groups in Flutter intuitive and simple, allowing you to focus on creating amazing user experiences. At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

Happy coding!

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