johncodeos

// For UIKit project
override func viewDidLoad() {
    super.viewDidLoad()
    self.title = "Demo App"
    self.navigationController?.navigationBar.isTranslucent = false
    self.navigationController?.navigationBar.tintColor = .white
    self.navigationController?.navigationBar.barTintColor = .red
    if #available(iOS 13.0, *) {
        let appearance = UINavigationBarAppearance()
        appearance.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]

johncodeos

extension String {
    func iso8601Value() -> Date? {
        let theDate = self

        let formatter = DateFormatter()
        formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZ"
        let date = formatter.date(from: theDate as String)

        return date
    }

johncodeos

extension UIColor {
    static func colorFromHex(_ hex: String) -> UIColor {
        var hexString = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()
        if hexString.hasPrefix("#") {
            hexString.remove(at: hexString.startIndex)
        }
        if hexString.count != 6 {
            return UIColor.magenta
        }

johncodeos

extension NSData {
    var attributedString: NSAttributedString? {
        do {
           return try NSAttributedString(data: self, options:[NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType, NSCharacterEncodingDocumentAttribute: NSUTF8StringEncoding], documentAttributes: nil)
        } catch let error as NSError {
            print(error.localizedDescription)
        }
        return nil
    }
}