an implementation of UILoadingViewProtocol class

UILoadingView.swift

import PKHUD
extension UILoadingView where Self: UIViewController {
    
    func hideLoading(){
        HUD.hide()
    }
    func showLoading(){
        HUD.show(.progress)
    }
    func showLoadingWithLabel(title:String? = "Waiting", subtitle:String){
        HUD.show(.labeledProgress(title: title, subtitle: subtitle))
    }
    func showErrorWithLabel(message: String){
        HUD.flash(.labeledError(title: "Failure", subtitle: message), delay: 1.5)
    }
    func showSuccessWithLabel(message:String){
        HUD.flash(.labeledError(title: "Success", subtitle: message), delay: 1.5)
    }
}