enumerated_class

Description:

enumerated class

Enum Class #


A simple enum class with generic value type.
Pros

No extras file (*.g.dart), no need to use builder_runner

Cons

Require an extra static values variable & factory function when you want to create a instance of enum.

Implement #
Extend your class with Enum class, the generic type can be bool, num, string
class GameType extends Enum<int> {
// Add factory when you want to create from raw value
factory GameType(int rawValue) => Enum.factory(values, rawValue);

// Declare a private constructor,
// so the new case can only create inside the class
const GameType._(int rawValue) : super(rawValue);

// Cases
static const action = GameType._(0);
static const sport = GameType._(1);
static const arcade = GameType._(2);
static const rpg = GameType._(3);

// It is required when you declare a factory for this enum
// Values
static var values = [action, sport, arcade, rpg];
}
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Usage #
Using completely normal as you use with enum
// Create a case from raw value
final theCase = GameType(0);
print(theCase);

// Using the same as enum does
if (theCase == GameType.action) {
print("It's 'Action'");
}

switch (theCase){
case GameType.action:
print("It's 'Action' again");
break;

case GameType.rpg:
print("It will be never happend");
break;

default:
print("It will be never happend");
}
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