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

Stuck on this task, could someone please HELP?

In our Treehouse model struct below we have a property named friends. It is a dictionary that holds information about our friends including their profile pictures. In the ViewController class, using the key profilePicture, retrieve the image name as a string from the dictionary and assign it to a constant named profileImageName. I’ve already created an instance of the Treehouse struct and stored a reference to the friends library in a constant named friends for you to use.

Once you have the image name, create an instance of UIImage using the image name and store it in a constant called profilePicture.

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {

        let friends = Treehouse().friends

        let profileImageName = profilePicture["imageName"] as [String]!
        imageName = UIImage(named: profileImageName)

        let profilePicture = 


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

1 Answer

HI Jamal,

First you need to obtain the string from the key/value pairing in the dictionary called friends.

That gets stored in a constant called profileImageName. The code for that would look something like:

let profileImageName: String = friends["profilePicture"]!

Next, you want to create a constant called profilePicture and use the UIImage methods to populate it. That would look something like:

let profilePicture = UIImage.imageNamed(profileImageName)

I hope that makes sense!