How to get all enum values as an array
For Swift 4.2 (Xcode 10) and later
There's a CaseIterable
protocol:
enum EstimateItemStatus: String, CaseIterable { case pending = "Pending" case onHold = "OnHold" case done = "Done" init?(id : Int) { switch id { case 1: self = .pending case 2: self = .onHold case 3: self = .done default: return nil } }}for value in EstimateItemStatus.allCases { print(value)}
For Swift < 4.2
No, you can't query an enum
for what values it contains. See this article. You have to define an array that list all the values you have. Also check out Frank Valbuena's solution in "How to get all enum values as an array".
enum EstimateItemStatus: String { case Pending = "Pending" case OnHold = "OnHold" case Done = "Done" static let allValues = [Pending, OnHold, Done] init?(id : Int) { switch id { case 1: self = .Pending case 2: self = .OnHold case 3: self = .Done default: return nil } }}for value in EstimateItemStatus.allValues { print(value)}
Swift 5
Add CaseIterable protocol to enum:
enum EstimateItemStatus: String, CaseIterable { case pending = "Pending" case onHold = "OnHold" case done = "Done"}
Usage:
let values: [String] = EstimateItemStatus.allCases.map { $0.rawValue }//["Pending", "OnHold", "Done"]