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iOS Build a Simple iPhone App with Swift 2.0 Improving Our User Interface Changing the Background Color

Anthony Puertas
Anthony Puertas
362 Points

Code challenge task 1 of 2

I wrote this code and it gives me this error: Bummer! Make sure your UIColor instance is initialized with the values specified in the directions either using the initializer or the convenience method

colors.swift
class ViewController: UIViewController {
    let blueColor = UIColor(red: 0/255.0, green: 0/255.0, blue: 255/255.0, alpha: 1.0)

    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
    }
}

1 Answer

Moritz Lang
Moritz Lang
25,909 Points

Hi Anthony, the following code did work for me:

class ViewController: UIViewController {

    let blueColor = UIColor.blueColor()

    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
    }
}

If you want to use the initializer of UIColor instead you just have to use the values provided in the question:

let blueColor = UIColor(red: 0.0, green: 0.0, blue: 255.0, alpha: 1.0)