Select Group

enum Sidebar { recents, home, applications }
 
FSelectGroup<Sidebar>(
  controller: FMultiSelectGroupController(values: {Sidebar.recents}),
  label: const Text('Sidebar'),
  description: const Text('These will be shown in the sidebar.'),
  items: [
    FSelectGroupItem.checkbox(
      value: Sidebar.recents,
      label: const Text('Recents'),
    ),
    FSelectGroupItem.checkbox(
      value: Sidebar.home,
      label: const Text('Home'),
    ),
    FSelectGroupItem.checkbox(
      value: Sidebar.applications,
      label: const Text('Applications'),
    ),
  ],
);

enum Language { dart, java, rust, python }
 
class CheckboxForm extends StatefulWidget {
  const CheckboxForm({super.key});
 
  @override
  State<CheckboxForm> createState() => CheckboxFormState();
}
 
class CheckboxFormState extends State<CheckboxForm> {
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
 
  @override
  Widget build(BuildContext context) => Form(
        key: _formKey,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            FSelectGroup<Language>(
              controller: FMultiSelectGroupController(),
              label: const Text('Favorite Languages'),
              description: const Text('Your favorite language.'),
              validator: (values) => values?.isEmpty ?? true ? 'Please select at least one language.' : null,
              items: [
                FSelectGroupItem.checkbox(
                  value: Language.dart,
                  label: const Text('Dart'),
                ),
                FSelectGroupItem.checkbox(
                  value: Language.java,
                  label: const Text('Java'),
                ),
                FSelectGroupItem.checkbox(
                  value: Language.rust,
                  label: const Text('Rust'),
                ),
                FSelectGroupItem.checkbox(
                  value: Language.python,
                  label: const Text('Python'),
                ),
              ],
            ),
            const SizedBox(height: 20),
            FButton(
              label: const Text('Submit'),
              onPress: () {
                if (!_formKey.currentState!.validate()) {
                  // Handle errors here.
                  return;
                }
 
                _formKey.currentState!.save();
                // Do something.
              },
            ),
          ],
        ),
      );
}

enum Notification { all, direct, nothing }
 
class RadioForm extends StatefulWidget {
  const RadioForm({super.key});
 
  @override
  State<RadioForm> createState() => RadioFormState();
}
 
class RadioFormState extends State<RadioForm> {
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
 
  @override
  Widget build(BuildContext context) => Form(
        key: _formKey,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            FSelectGroup<Notification>(
              controller: FRadioSelectGroupController(),
              label: const Text('Notifications'),
              description: const Text('Select the notifications.'),
              validator: (values) => values?.isEmpty ?? true ? 'Please select a value.' : null,
              items: [
                FSelectGroupItem.radio(
                  value: Notification.all,
                  label: const Text('All new messages'),
                ),
                FSelectGroupItem.radio(
                  value: Notification.direct,
                  label: const Text('Direct messages and mentions'),
                ),
                FSelectGroupItem.radio(
                  value: Notification.nothing,
                  label: const Text('Nothing'),
                ),
              ],
            ),
            const SizedBox(height: 20),
            FButton(
              label: const Text('Save'),
              onPress: () {
                if (!_formKey.currentState!.validate()) {
                  // Handle errors here.
                  return;
                }
 
                _formKey.currentState!.save();
                // Do something.
              },
            ),
          ],
        ),
      );
}