[Flutter] Easy use enum in flutter version 3

enum HogeType {
  hoge('ほげ', 'hoge'),
  fuga('ふが', 'fuga'),
  piyo('ぴよ', 'piyo'),
  foo('ふー', 'foo'),
  bar('ばー', 'bar'),
  none('', '');

  const HogeType(this.name, this.type);
  final String name;
  final String type;

  static HogeType fromType(String from) {
    return HogeType.values.firstWhere(
      (value) {
        return value.type == from;
      },
      orElse: () {
        return HogeType.none;
      },
    );
  }
}

void hg() {
  print(HogeType.fromType('hoge'));
  //HogeType.hoge
  print(HogeType.fromType('aa'));
  //HogeType.none
}

Flutter Enum

What is enum ?

Enum in dart is enumerated, iterable
Enum is used for defining named constant values.

How to use ?

Synstax

enum PlatformEnum {
    android, ios, windown
}

Iterate over enum values

PlatformEnum.values.forEach((value) => print('value: $value, index: ${value.index}'));

Extension enum

extension PlatformEnumExtension on PlatformEnum {
    String? get title {
        switch …

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Flutter Enum

What is enum ?

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What is enum ?

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