Cannot update UIButton.image after view loads

Question

I am attempting something relatively simple. I have a UIButton that loads with an image:

@IBOutlet var peer5Outlet: UIButton!

    override func viewDidLoad() {
    super.viewDidLoad()

    peer5Outlet.enabled = true
    var img = UIImage(named: "camera")
    peer5Outlet.setImage(UIImage(named: "camera"),forState: UIControlState.Normal) }

Once it is loaded, I simply want to update that image by calling a method:

func updateButtonImage() {

    peer5Outlet.imageView!.image = UIImage(named: "connected")!

    print("peer5Outlet.imageView!.image = \(peer5Outlet!.imageView!.image!)")

}

However, I am still unable to update the image; the original image never changes in the view.

Perhaps I am missing some sort of view reload method?

Answer 1

Update your updateButtonImage function to

func updateButtonImage() {
    peer5Outlet.setImage(UIImage(named: "connected"), forState: .Normal)
    print("peer5Outlet.imageView!.image = \(peer5Outlet!.imageView!.image!)")
}