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

The solution is incorrect. Blue value should be 1.0 and not 255.

The solution is incorrect. Blue value should be 1.0 and not 255.

ViewController.swift
class ViewController: UIViewController {

  let blueColor = UIColor(red: 0, green: 0, blue: 255, alpha: 1)

  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.
  }
}

Why?

UIColor initialization takes only CGFloat values between 0 and 1.0. This is clearly specified in the Apple documentation and surprisingly even specifically mentioned in the course video and the example itself.

Jason Anders
Jason Anders
Treehouse Moderator 145,093 Points

Hi Kris Rajendren. That's right. The correct answer should be 1.0, as per documentation and instruction.

I've flagged this post for Instructor feedback. Thank-you for bringing this to the Community! :)

:dizzy: