iOS Build a Simple iPhone App with Swift Improving Our User Interface Changing the Background Color

Changing background color: Swift 3

For some reason it now says my code for challenge one no longer works. Am i doing something wrong on challenge two

class ViewController: UIViewController {

let blueColor = 
var backgroundColor = 

  override func viewDidLoad() {
      // Do any additional setup after loading the view, typically from a nib.

  override func didReceiveMemoryWarning() {
      // Dispose of any resources that can be recreated.

2 Answers

Steve Hunter
Steve Hunter
Treehouse Moderator 57,657 Points

Oh, hang on ... you changed your code ...

You don't need to set backgroundColor outside of viewDidLoad so delete the line, var backgroundColor =

You want to use the blueColor constant to set the backgroundColor property of the view using dot notation inside the viewDidLoad method.


view.backgroundColor = blueColor

after the 'additional setup' comment once you have deleted the line I mentioned above.


Thank you so much