How can I make a Swift enum with UIColor value?

Question

I\'m making a drawing app and I would like to refer to my colors through use of an enum. For example, it would be cleaner and more convenient to use Colors.RedColor

Answer 1

This can be done much more succinctly (and should):

extension UIColor
{
    static let myColor = UIColor(displayP3Red: 0.0, green: 0.7, blue: 0.0, alpha: 1.0)
}

(Any other method that returns a UIColor is equally suitable, doesn't need to be displayP3Red)

Usage:

let someColor: UIColor = .myColor

Answer 2

If your color isn't one of those defined by UIColor's convenience method, you can add an extension to UIColor:

extension UIColor {
    static var firstColor: UIColor  { return UIColor(red: 1, green: 0, blue: 0, alpha: 1) }
    static var secondColor: UIColor { return UIColor(red: 0, green: 1, blue: 0, alpha: 1) }
}

// Usage
let myColor = UIColor.firstColor

Answer 3

If you want to return multiple value then use below code...it's absolutely working for me....

enum GetDriverStatus : String {
    case ClockIn            = "Clock In"
    case TripStart          = "Trip Start"
    case BeaconTouchPlant   = "Beacon Touch Plant"
    case PickUp             = "Pick Up"
    case BeaconTouchSite    = "Beacon Touch Site"
    case BeaconLeftSite     = "Beacon Left Site"
    case DropOff            = "Drop Off"
    case BreakIn            = "Break In"
    case BreakOut           = "Break Out"
    case TripEnd            = "Trip End"
    case DayEnd             = "Day End"
    //case ClockOut           = "Clock Out"

    //Get data from ID
    static var allValues: [GetDriverStatus] {
        return [
            .ClockIn,
            .TripStart,
            .BeaconTouchPlant,
            .PickUp,
            .BeaconTouchSite,
            .BeaconLeftSite,
            .DropOff,
            .BreakIn,
            .BreakOut,
            .TripEnd,
            .DayEnd
        ]
    }

    //Get Color
    var colorAndStatus: (UIColor,String) {
        get {
            switch self {
            case .ClockIn,.TripStart: //Idle
                return (UIColor(red: 248/255, green: 39/255, blue: 71/255, alpha: 1.0),"Idle") //dark pink-red
            case .BeaconTouchPlant,.PickUp:
                return (UIColor(red: 46/255, green: 180/255, blue: 42/255, alpha: 1.0),"Picking up") //Green
            case .BeaconTouchSite:
                return (UIColor(red: 252/255, green: 172/255, blue: 0/255, alpha: 1.0),"On site") //orange
            case .DropOff,.BeaconLeftSite:
                return (UIColor(red: 12/255, green: 90/255, blue: 255/255, alpha: 1.0),"Dropping off") //blue
            case .BreakIn,.BreakOut:
                return (UIColor(red: 151/255, green: 151/255, blue: 151/255, alpha: 1.0),"On break") //warm-grey-two
            case .TripEnd:
                return (UIColor.black,"Trip end")
            case .DayEnd:
                return (UIColor.black,"Done for the day")
            }
        }
    }
} 

How to use this code Passing .allvalues["index of your option"] you getting UIColor at 0 position as well as String value as 1 position

GetDriverStatus.allValues[1].colorAndStatus.0 //UIColor.Black
GetDriverStatus.allValues[2].colorAndStatus.1 //"Picking up"