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