Demo input parameter for enum extension

main.dart

enum SelectedColor {
  primaryColor,
  secondaryColor,
}

extension SelectedColorExtension on SelectedColor {
  String get name => describeEnum(this);

  String displayTitle(index) {
    print(index);
    switch (this) {
      case SelectedColor.primaryColor:
        return 'This is the Primary Color';
      case SelectedColor.secondaryColor:
        return 'This is the Secondary Color';
      default:
        return 'SelectedScheme Title is null';
    }
  }

  String describeEnum(Object enumEntry) {
    final String description = enumEntry.toString();
    final int indexOfDot = description.indexOf('.');
    assert(indexOfDot != -1 && indexOfDot < description.length - 1);
    return description.substring(indexOfDot + 1);
  }
}

void main() {
    print('${SelectedColor.primaryColor.displayTitle('input')}');
}