A lightweight customized tabbar view. 📌

    let hhTabBarView = HHTabBarView.shared

    let referenceTabBarController = HHTabBarView.shared.referenceUITabBarController

    func setupReferenceUITabBarController() -> Void {
        
        //Creating a storyboard reference
        let storyboard = UIStoryboard.init(name: "Main", bundle: Bundle.main)
        
        //Creating navigation controller for navigation inside the first tab.
        let navigationController1: UINavigationController = UINavigationController.init(rootViewController: storyboard.instantiateViewController(withIdentifier: "FirstViewControllerID"))
        
        //Creating navigation controller for navigation inside the second tab.
        let navigationController2: UINavigationController = UINavigationController.init(rootViewController: storyboard.instantiateViewController(withIdentifier: "SecondViewControllerID"))
        
        //Update referenced TabbarController with your viewcontrollers
        referenceTabBarController.setViewControllers([navigationController1, navigationController2], animated: false)
    }

    //Update HHTabBarView reference with the tabs requires.
    func setupHHTabBarView() -> Void {
        
        //Default & Selected Background Color
        let defaultTabColor = UIColor.white
        let selectedTabColor = UIColor.init(red: 234/255, green: 218/255, blue: 195/255, alpha: 1.0)
        let tabFont = UIFont.init(name: "Helvetica-Light", size: 14.0)
        
        //Create Custom Tabs
        let t1 = HHTabButton.init(withTitle: "Calendar", tabImage: UIImage.init(named: "Calendar")!, index: 0)
        t1.titleLabel?.font = tabFont
        t1.titleLabel?.textColor = UIColor.black
        t1.setHHTabBackgroundColor(color: defaultTabColor, forState: .normal)
        t1.setHHTabBackgroundColor(color: selectedTabColor, forState: .selected)
        
        let t2 = HHTabButton.init(withTitle: "Refresh", tabImage: UIImage.init(named: "Refresh")!, index: 1)
        t2.titleLabel?.font = tabFont
        t2.titleLabel?.textColor = UIColor.black
        t2.setHHTabBackgroundColor(color: defaultTabColor, forState: .normal)
        t2.setHHTabBackgroundColor(color: selectedTabColor, forState: .selected)
        
        //Note: As HHTabButton are subclassed of UIButton so you can modify it as much as possible.
        
        //Set Custom Tabs
        hhTabBarView.tabBarTabs = [t1, t2]
        
        //Set Default Index for HHTabBarView.
        hhTabBarView.defaultIndex = 1
        
        //Show Animation on Switching Tabs
        hhTabBarView.tabChangeAnimationType = .none
        
        //Handle Tab Change Event
        hhTabBarView.onTabTapped = { (tabIndex) in
            print("Selected Tab Index:\(tabIndex)")
        }
    }

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        
        //Setup HHTabBarView
        setupReferenceUITabBarController()
        setupHHTabBarView()
        
        //Setup Application Window
        self.window = UIWindow.init(frame: UIScreen.main.bounds)
        self.window?.rootViewController = self.referenceTabBarController
        self.window?.makeKeyAndVisible()
        
        return true
    }