joelhenryclark123 / XKCD-Today

Shows the most recent XKCD Comic using UIKit, URLSession and Dispatch Queues!

XKCD Today

Displays the most recent Xkcd comic!

View

Just an ImageView aligned to the edges.

ViewController.Swift

Added this block to viewDidLoad():

ComicLoader.loadTodaysComic { (comic) in
    DispatchQueue.global().async {
        let imgUrl = URL(string: comic.img)!
        let data = try! Data(contentsOf: imgUrl)
        
        DispatchQueue.main.async {
            self.imageView.image = UIImage(data: data)
        }
    }
}

As well as an outlet to the ImageView created on main.storyboard:

@IBOutlet var imageView: UIImageView!

ComicLoader.swift

Contains a struct and a class:

class ComicLoader

Contains a static variable with the url to retrieve the most recent comic on Xkcd's json interface

Also contains a static function

static func loadTodaysComic(completion: @escaping (Comic) -> Void)

struct Comic: Codable

This is just to conform to Xkcd's json response format