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

Harry Hendel
Harry Hendel
Courses Plus Student 2,748 Points

Editing the background colour of a view

Hi, I am trying to edit the background if the view and am getting an error that says that I need to define the view.

Thanks, From Harry

class ViewController: UIViewController {
    let blueColor = UIColor.blueColor()
    view.backgroundColor = 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

1 Answer

Hi Harry,

You need to move the following line to be inside viewDidLoad() function, as in a class you can't execute a line of code outside a method/function.

view.backgroundColor = blueColor

Cheers, Safwat

Mauricio Carvalho
Mauricio Carvalho
5,271 Points

Thank you! I was having a really hard time creating a new function to no avail, or sticking my view.backgroundColor line everywhere, except on the right place!