class Testing: UIViewController {
    @IBOutlet weak var slidingView: UIView!
    @IBOutlet weak var sliding_label: UILabel!
    override func viewDidLoad() {
        super.viewDidLoad()
       sliding_label.layer.cornerRadius=10
        sliding_label.layer.masksToBounds = true
    }
    override func viewWillAppear(_ animated: Bool) {
        self.sliding_label.slideInFromLeft()
        //      self.slidingTextLabel.slideInFromLeft(duration: 1.0, completionDelegate: self) // Use this line to specify a duration or completionDelegate
        self.sliding_label.text = "  "+"Sliding Registration and select location"+"  "
        self.sliding_label.alpha = 0
        self.sliding_label.fadeIn(completion: {
            (finished: Bool) -> Void in
            self.sliding_label.fadeOut()
        })
        self.sliding_label.isHidden = false
        DispatchQueue.main.asyncAfter(deadline: .now() + 7) {
            self.sliding_label.fadeOut()
        }
    }
}
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extensions:
extension UIView {
    // Name this function in a way that makes sense to you...
    // slideFromLeft, slideRight, slideLeftToRight, etc. are great alternative names
    func slideInFromLeft(duration: TimeInterval = 1.0, completionDelegate: AnyObject? = nil) {
        // Create a CATransition animation
        let slideInFromLeftTransition = CATransition()
        // Set its callback delegate to the completionDelegate that was provided (if any)
        if let delegate: AnyObject = completionDelegate {
            slideInFromLeftTransition.delegate = delegate as? CAAnimationDelegate
        }
        // Customize the animation's properties
        slideInFromLeftTransition.type = kCATransitionPush
        slideInFromLeftTransition.subtype = kCATransitionFromLeft
        slideInFromLeftTransition.duration = duration
        slideInFromLeftTransition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
        slideInFromLeftTransition.fillMode = kCAFillModeRemoved
        // Add the animation to the View's layer
        self.layer.add(slideInFromLeftTransition, forKey: "slideInFromLeftTransition")
    }
    func fadeIn(duration: TimeInterval = 1.0, delay: TimeInterval = 0.0, completion: @escaping ((Bool) -> Void) = {(finished: Bool) -> Void in}) {
        UIView.animate(withDuration: duration, delay: delay, options: UIViewAnimationOptions.curveEaseIn, animations: {
            self.alpha = 1.0
        }, completion: completion)  }
    func fadeOut(duration: TimeInterval = 1.0, delay: TimeInterval = 3.0, completion: @escaping (Bool) -> Void = {(finished: Bool) -> Void in}) {
        UIView.animate(withDuration: duration, delay: delay, options: UIViewAnimationOptions.curveEaseIn, animations: {
            self.alpha = 0.0
        }, completion: completion)
    }
}

