Why can't I create an array in ViewController?

Question

When I try to create an array of UIButtons in the ViewController

Instance member 'tile11' cannot be used on type 'ViewController'

It works when I create it inside a method, but I need the array in more than one method, and it's getting annoying to having to create the array again and again.

class ViewController: UIViewController {
    let tileArray: Array<UIButton> = [tile11, tile12, tile13, tile21, tile22, tile23, tile31, tile32, tile33]
}

keithbhunter · Accepted Answer · 2015-11-18 13:42:40Z

4

There isn't enough code to tell for sure, but I'm guessing tile11 and the other tiles are other instance variables (button outlets to be specific)? They would technically not be accessible until run-time. This is why you cannot instantiate tileArray like that, but why it works in a method. The only way to instantiate tileArray in line with the declaration is to use constants in the array. You should initialize tileArray in viewDidLoad().

answered Nov 18, 2015 at 13:42

keithbhunter

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3 Comments

StevoHN Over a year ago

Okay thanks for the clarification. They are outlets yes.

StevoHN Over a year ago

When moving it to the viewDidLoad() I can't access it in my methods.

Phillip Mills Over a year ago

Declare it as var tileArray: Array<UIButton> outside methods so that all can see it, but assign the value in viewDidLoad.

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