flutter enum

enum PlatformType {
  android('android', 'Android'),
  ios('ios', 'iOS'),
  web('web', 'Web');
 
  const PlatformType(this.code, this.name);
  final String code;
  final String name;
 
  factory PlatformType.getByCode(String code) {
    return PlatformType.values
        .firstWhere((value) => value.code == code, orElse: () => PlatformType.web);
  }
}

enum TitleType {
  id('id'),
  order('order'),
  developer('developer'),
  platform('platform'),
  service('service'),
  category('category'),
  flow('flow'),
  app('app'),
  email('email'),
  name('name');
 
  const TitleType(this.code);
  final String code;
}

enum RoleType {
  user('user'),
  manager('manager'),
  admin('admin');
 
  const RoleType(this.code);
  final String code;
}