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iOS Build a Playlist Browser with Swift Building the Music Library and Playlist Models Creating UIImageView instances

Posted by ricky gomes
ricky gomes
2,301 Points

Not working

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    let friends = Treehouse().friends

    //Add your code below
    let profileImageName = friends["profilePicture"] as String //this isn't working

}

}

ImageViews.swift 
import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let friends = Treehouse().friends

        //Add your code below
        let profileImageName = friends["profilePicture"] as String

    }

}
Treehouse.swift 
struct Treehouse {
    let friends = [
        "firstName": "Susan",
        "lastName": "Olson",
        "profilePicture": "susan_profile.png"
    ]
}

1 Answer

Jens Hagfeldt
Jens Hagfeldt
16,548 Points
Jens Hagfeldt
Jens Hagfeldt
16,548 Points

You need to put a exclamation mark (!) after you set the type to String like shown here below. Also you need to create an instance of UIImage using the image name and then store it in a constant called profilePicture.

let profileImageName = friends["profilePicture"] as String!
let profilePicture = UIImage(named: "\(profileImageName)")
Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Hi Jens Hagfeldt !

I changed your comment to answer.