Swift enums and UISegmentedControl

enums.playground

import UIKit

enum Size: Int, CustomStringConvertible {
    case S = 0
    case M
    case L
    case XL
    
    static func allValues() -> [String] {
        return [S, M, L, XL].map({$0.description})
    }
    
    static func count() -> Int {
        return allValues().count
    }
    
    public var description: String {
        switch self {
        case .S:
            return "S"
        case .M:
            return "M"
        case .L:
            return "L"
        case .XL:
            return "XL"
        }
    }
}

Size.count()
Size.allValues()

let segmented = UISegmentedControl(items: Size.allValues())