[Swift] enum 열거형

 

Swift 공식 문서 (한국어 가이드)

https://jusung.gitbook.io/the-swift-language-guide/language-guide/08-enumerations

열거형 (Enumerations) - The Swift Language Guide (한국어)

 

import UIKit

// 학교 - 초, 중, 고
enum School_1 {
    case elementary
    case middle
    case high
}

enum School_2 {
    case elementary, middle, high
}

let yourSchool = School_1.high
print("yourSchool: \(yourSchool)")
print("yourSchool: ", yourSchool)

enum Grade : Int {
    case first = 1
    case second = 2
}

let yourGrade = Grade.second
print("yourGrade: \(yourGrade)")
print("yourGrade: \(yourGrade.rawValue)")

let yourGrade_2 = Grade.second.rawValue
print("yourGrade_2: \(yourGrade_2)")

enum SchoolDetail {
    case elementary(name: String)
    case middle(name: String)
    case high(name: String)
    
    func getName() -> String {//getName()을 호출하면 String을 반환하겠다.
        switch self { // 만약 SchoolDetail 나 자신이 ~ 라면
        case .elementary(let name):
            return name
        case let .middle(name):
            return name
        case .high(let name):
            return name
        }//switch end
    }//func end
}//enum

let yourMiddleSchooldName = SchoolDetail.middle(name: "단비중학교")
print("yourMiddleSchooldName: \(yourMiddleSchooldName)") //yourMiddleSchooldName: middle(name: "단비중학교")
print("yourMiddleSchooldName: \(yourMiddleSchooldName.getName())") //yourMiddleSchooldName: 단비중학교

 

enum 예제

enum BookmarkActionType {
    case add
    case delete
}

let action: BookmarkActionType

switch action {
case .add:
    // 스토어를 찜했을 때 동작하는 작업
case .delete:
    // 찜한 스토어를 삭제했을 때 동작하는 작업
}
[출처] https://labs.brandi.co.kr/2021/09/01/kimjh3.html