ios - UIButton not reacting to first press in Swift -

i working on simple (ok, should simple) calculator estimates risk based on few inputs (toggle on/off)

everything working properly, except uibuttons need tapped 2 times toggle initially. after that, uibuttons work expected.

here code (contained within viewdidload())

@iboutlet weak var confusionbutton: uibutton!  var counter = 0  var confusiontoggle = 0 

and here 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 one? swift skills limited (my first attempt swift)

think getting confused. use print statements first understand happening, fancy button ui changes.

@ibaction func tapbutton(sender: uibutton) {      // user println 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--;     } }