Access subview controls of a UIButton - ios

Question

I added a UILabel as subview of a UIButton as
var actLabel = UILabel(frame: CGRectMake(35, 0, 90, favHeight))
actLabel.font = UIFont(name: "Helvetica", size: 14)
actLabel.text = "Actions"
actLabel.textColor = darkBlueColor
actLabel.textAlignment = NSTextAlignment.Center
actPanel.addSubview(actLabel)
where actPanel is a UIButton
On action of this UIButton I want to access the controls of this UILabel. How can I do that?

Answer 1

Subclass UIButton
class ActionButton : UIButton {
var actionLabel: UILabel!
}
var actLabel = UILabel(frame: CGRectMake(35, 0, 90, favHeight))
actLabel.font = UIFont(name: "Helvetica", size: 14)
actLabel.text = "Actions"
actLabel.textColor = darkBlueColor
actLabel.textAlignment = NSTextAlignment.Center
actPanel.addSubview(actLabel)
actPanel.actionLabel = actLabel
Or build the smarts into the class
class ActionButton : UIButton {
var favoriteHeight: CGFloat = 80 // Or whatever default you want.
var darkBlueColor: UIColor = UIColor(red: 0, green: 0, blue: 0.75, alpha: 1) // Or whatever
#IBOutlet var actionLabel: UILabel! {
get {
if _actionLabel == nil {
var actLabel = UILabel(frame: CGRectMake(35, 0, 90, favoriteHeight))
actLabel.font = UIFont(name: "Helvetica", size: 14)
actLabel.textColor = darkBlueColor
actLabel.textAlignment = NSTextAlignment.Center
addSubview(actLabel)
_actionLabel = actLabel
}
return _actionLabel
}
set {
_actionLabel?.removeFromSuperview()
_actionLabel = newValue
if let label = _actionLabel {
addSubview(label)
}
}
}
override func willMoveToSuperview(newSuperview: UIView?) {
// Ensure actionLabel exists and the text has a value.
if actionLabel.text == nil || actionLabel.text!.isEmpty {
actionLabel.text = "Action" // Provide a default value
}
}
private var _actionLabel: UILabel!
}

Answer 2

You can access all subviews by
var subviews = actPanel.subviews()
Then you can iterate through that array and find your label.
But if you have this label as title of the button, UIButton already has its own titleLabel.

Answer 3

If you created a class for the actPanel and added the label as property you can access it with actPanel.actLabel.text = "Actions" else you can access it like you already did: actLabel.text = "Actions"