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

Challenge Task 1 of 1

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() {

        //Add your code below
        let friends = Treehouse().friends
        let friends = Treehouse().friends
        let profileImageName = friends["profilePicture"]
        let profilePicture = UIImage(named: profileImageName)


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

2 Answers

You're very close.

First, you've got two friends constants defined - remove one of those.

Then, you need to unwrap the result of accessing the dictionary with the key - you've nearly got that right ... it should look like:

        let profileImageName = friends["profilePicture"]!

Then your last line is correct:

        let profilePicture = UIImage(named: profileImageName)

I hope that helps!


Thanks Steve. I passed it.

let friends = Treehouse().friends let profileImageName = friends["profilePicture"]! let profilePicture = UIImage(named: profileImageName)