class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?
var controller: SLPagingViewSwift!
var nav: UINavigationController?
var home: ViewController?

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {


    window = UIWindow(frame: UIScreen.main.bounds)
    let orange = UIColor(red: 255/255, green: 69.0/255, blue: 0.0/255, alpha: 1.0)
    let gray = UIColor(red: 0.84, green: 0.84, blue: 0.84, alpha: 1.0)

    let stb = UIStoryboard(name: "Main", bundle: nil)
    self.home = stb.instantiateViewController(withIdentifier: "ViewController") as? ViewController
    let vc2 = ViewController()
    vc2.view.backgroundColor = .red
    let vc3 = ViewController()
    vc3.view.backgroundColor = .blue


    var homeBtn = UIImage(named: "profile")
    homeBtn = homeBtn?.withRenderingMode(.alwaysTemplate)
    var vc2Btn = UIImage(named: "gear")
    vc2Btn = vc2Btn?.withRenderingMode(.alwaysTemplate)
    var vc3Btn = UIImage(named: "chat")
    vc3Btn = vc3Btn?.withRenderingMode(.alwaysTemplate)

    let items = [UIImageView(image: homeBtn),
                 UIImageView(image: vc2Btn),
                 UIImageView(image: vc3Btn)]

    let controllers = [self.home!,
                       vc2,
                       vc3] as [UIViewController]

    self.controller = SLPagingViewSwift(items: items, controllers: controllers, showPageControl: false)

    self.controller.pagingViewMoving = ({ subviews in
        if let imageViews = subviews as? [UIImageView] {
            for imgView in imageViews {
                var c = gray
                let originX = Double(imgView.frame.origin.x)

                if (originX > 45 && originX < 145) {
                    c = self.gradient(originX, topX: 46, bottomX: 144, initC: orange, goal: gray)
                }
                else if (originX > 145 && originX < 245) {
                    c = self.gradient(originX, topX: 146, bottomX: 244, initC: gray, goal: orange)
                }
                else if(originX == 145){
                    c = orange
                }
                imgView.tintColor = c
            }
        }
    })

    self.nav = UINavigationController(rootViewController: self.controller)
    self.window?.rootViewController = self.nav
    self.window?.backgroundColor = UIColor.black
    self.window?.makeKeyAndVisible()

    return true

}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    let stb = UIStoryboard(name: "Main", bundle: nil)
    let vc = stb.instantiateViewController(withIdentifier: "SegueVC")
    let appDelegate = UIApplication.shared.delegate as! AppDelegate

    appDelegate.controller?.navigationController?.pushViewController(vc, animated: true)
    //appDelegate.nav?.pushViewController(vc, animated: true)
}

appDelegate.controller?.navigationController?.pushViewController(vc, animated: true)
//appDelegate.nav?.pushViewController(vc, animated: true)

self.nav = UINavigationController(rootViewController: self.controller)
self.window?.rootViewController = self.nav
self.window?.backgroundColor = UIColor.black
self.window?.makeKeyAndVisible()