NeilsUltimateLab

import UIKit

protocol ContainmentProvider: class {
    func addChild(_ viewController: UIViewController, to containerView: UIView)
    func removeChild(_ viewController: UIViewController?)
}

extension ContainmentProvider where Self: UIViewController {
    func addChild(_ viewController: UIViewController, to containerView: UIView) {
        self.addChild(viewController)

NeilsUltimateLab

@IBDesignable
class ShadowButton: UIButton {

    @IBInspectable
    var color: UIColor = .white {
        didSet {
            self.setNeedsDisplay()
        }
    }
    

NeilsUltimateLab

class ShadowView: UIView {
    
    var color: UIColor = .white {
        didSet {
            self.setNeedsDisplay()
        }
    }
    
    var cornerRadius: CGFloat = 12 {
        didSet {

NeilsUltimateLab

import UIKit

class PopoverController: UIViewController {

    enum Source {
        case barButtonItem(item: UIBarButtonItem)
        case sourceView(view: UIView?)
    }
    
    private var contentViewController: UIViewController?

NeilsUltimateLab

import UIKit

public class AppHUD {
    
    public init() {}
    
    public enum `Type` {
        case definite(String?, String?)
        case indefinite
        case message(UIImage?, String?, String?, TimeInterval)

NeilsUltimateLab

import UIKit

class ShadowView: UIView {

    var color: UIColor? {
        didSet {
            self.setNeedsDisplay()
        }
    }
    

NeilsUltimateLab

import UIKit

class IndicatorViewButton: UIButton {

    var roundedCornerRequired: Bool = true
    
    private var indicatorView: UIActivityIndicatorView = {
        let aiv = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.white)
        aiv.hidesWhenStopped = true
        aiv.translatesAutoresizingMaskIntoConstraints = false

NeilsUltimateLab

protocol Identifiable {
    static var identifier: String { get }
}

extension Identifiable where Self: UIViewController {
    static var identifier: String {
        return String(describing: self)
    }
}

NeilsUltimateLab

import UIKit

extension ModalPresentationAnimator {
    enum Mode {
        case present
        case dismiss
    }
    enum AnimationStyle {
        case modal
        case pop

NeilsUltimateLab

import UIKit

struct FileCoordinator {
    
    static func isFileExist(at url: URL, destinationUrl: @escaping (URL?)->Void) {
        
        let backgroundQueue = DispatchQueue.global(qos: DispatchQoS.QoSClass.background)
        backgroundQueue.async {
            guard let documentUrl = FileManager.default.urls(for: .documentDirectory, in: FileManager.SearchPathDomainMask.userDomainMask).first else {
                DispatchQueue.main.async {