UIButton not reacting to first press in Swift - ios

Question

I am working on a simple (ok, it should be simple) calculator that estimates risk based on a few inputs (toggle on/off)
Everything is working properly, except that the UIButtons need to be tapped 2 times to toggle initially. After that, the UIButtons work as expected.
Here is the code (contained within viewDidLoad())
#IBOutlet weak var confusionButton: UIButton!
var counter = 0
var confusionToggle = 0
and here is the action
#IBAction func pressConfusion(sender: UIButton) {
if confusionToggle == 0 {
confusionButton.backgroundColor = UIColor.clearColor()
confusionButton.alpha = 1;
confusionToggle++;
counter++;
} else {
confusionButton.backgroundColor = UIColor.grayColor()
confusionButton.alpha = 0.5;
confusionToggle = 0
counter--;
}
}
Any thoughts on this one? My Swift skills are very limited (my first attempt with Swift)

Answer 1

Think your just getting yourself confused. Use print statements to first understand what is happening, then do all your fancy button UI changes.
#IBAction func tapButton(sender: UIButton) {
// user println to help debug
println(confusionToggle)
if confusionToggle == 0 {
sender.backgroundColor = UIColor.grayColor()
sender.alpha = 0.5;
confusionToggle++;
counter++;
}
else {
// RESET
sender.backgroundColor = UIColor.clearColor()
sender.alpha = 1;
confusionToggle = 0
counter--;
}
}

Answer 2

I don't know what you trying to do.
Just let you know that confusionToggle will be 0 at first time. So, when you click on the button your first condition will be called, It will clear the background color and increase the value of confusionToggle to 1 then after it's because of 1 it will not go to the first condition. So, it goes to else part and give the background color to the gray. confusionToggle again goes to 0.
And it will iterate every time like 0 - 1 - 0 - 1 ...
If you want to do gray color to the button when you tap then you have to change your logic.
if confusionToggle == 0 {
confusionButton.backgroundColor = UIColor.grayColor()
confusionButton.alpha = 0.5;
confusionToggle = 1;
counter++;
} else {
confusionButton.backgroundColor = UIColor.clearColor()
confusionButton.alpha = 1;
confusionToggle = 0
counter--;
}
Hope it helps to you.