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

Ruben Mercado
Ruben Mercado
1,933 Points

confused

don't know what to do

ViewController.swift
class ViewController: UIViewController {
    var blueColor = UIColor.blue
    UICOlor.backgroundColor = blueColor
  override func viewDidLoad() {
      super.viewDidLoad()
      // Do any additional setup after loading the view, typically from a nib.
  }

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

1 Answer

Paolo Scamardella
Paolo Scamardella
24,828 Points

The first step is asking to create a property called blueColor of type UIColor and set it to the value of blue like this:

    let blueColor: UIColor = UIColor.blue

Then in step two, it is asking to change the background color of view to blue when view is loaded like this:

   override func viewDidLoad() {
      super.viewDidLoad()
      // Do any additional setup after loading the view, typically from a nib.
      self.view.backgroundColor = blueColor
  }