Function lo load async an image using Kingfisher pod

UIImageView+Async.swift

//
//  UIImageView+Async.swift
//
//  Created by Rigoberto Sáenz Imbacuán (https://www.linkedin.com/in/rsaenzi/)
//  Copyright © 2019. All rights reserved.
//

import UIKit
import Kingfisher

extension UIImageView {
    
    func loadAsync(_ imageUrl: String) {
        
        guard let downloadURL = URL(string: imageUrl) else {
            self.image = nil
            return
        }
        
        let placeholder = UIImage(named: "PlaceholderBanner")
        let options: [KingfisherOptionsInfoItem] = [.transition(.fade(0.5)), .cacheOriginalImage]
        
        let resource = ImageResource(downloadURL: downloadURL, cacheKey: imageUrl)
        
        self.kf.setImage(
            with: resource,
            placeholder: placeholder,
            options: options,
            progressBlock: nil,
            completionHandler: { _ in })
    }
}