Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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.