A swift extension showing how one can add UIColor objects to NSUserDefaults.

MNGUserDefaultsExtensions.swift

//
//  MNGUserDefaultsExtensions.swift
//  
//
//  Created by Tommie N. Carter, Jr., MBA on 11/4/15.
//  Copyright © 2015 MING Technology. All rights reserved.
//

import Foundation
import UIKit

extension NSUserDefaults {
    
    func colorForKey(key: String) -> UIColor? {
        var color: UIColor?
        if let colorData = dataForKey(key) {
            color = NSKeyedUnarchiver.unarchiveObjectWithData(colorData) as? UIColor
        }
        return color
    }
    
    func setColor(color: UIColor?, forKey key: String) {
        var colorData: NSData?
        if let color = color {
            colorData = NSKeyedArchiver.archivedDataWithRootObject(color)
        }
        setObject(colorData, forKey: key)
    }
    
}