UIButton+Loading.swift

//
//  UIButton+Animations.swift
//  OneWallet
//
//  Created by Omar Alshammari on 25/01/1440 AH.
//  Copyright © 1440 Omar Alshammari. All rights reserved.
//

import UIKit
import PureLayout

//protocol UIViewLoadinAnimating {
//    var loadingIndicator: UIView {get set}
//
//    func startLoadingAnimation()
//    func stopLoadingAnimation()
//}
//
//extension UIViewLoadinAnimating {
//
//    var loadingIndicator: UIView {
//        get {
//            return UIActivityIndicatorView(activityIndicatorStyle: .gray)
//        }
//        set {
//            self.loadingIndicator = newValue
//        }
//    }
//
//}

extension UIButton
{
    
    func startLoadingAnimation() {
        //
        self.isEnabled = false
        let spin = UIActivityIndicatorView(activityIndicatorStyle: .gray)
        addSubview(spin)
        spin.autoPinEdge(toSuperviewSafeArea: .trailing, withInset: 10.0)
        spin.autoPinEdge(toSuperviewSafeArea: .bottom)
        spin.autoPinEdge(toSuperviewSafeArea: .top)
        spin.autoSetDimension(.width, toSize: 20.0)
        spin.isHidden = false
        spin.startAnimating()
    }
    
    func stopLoadingAnimation()  {
        //
        for view in subviews {
            if let spin = view as? UIActivityIndicatorView {
                spin.stopAnimating()
                spin.isHidden = true
                spin.removeFromSuperview()
            }
        }
        self.isEnabled = true
    }

}