uiview - On a programmatic view, my button can't be clicked -

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i have uiview leads uiview. have userinteraction set true. button shows, button not when clicked. added println statement make sure wasn't code ran in function. wrong view, or how button , function connected.

i using swift.

this code. in snipits, won't see viewdidload method:

let initiallaunchcontroller = uiview()     let teachingscreen = uiview()          learntoplaybutton.settitle("click here learn how play.", forstate: .normal)         learntoplaybutton.settitlecolor(uicolor.whitecolor(), forstate: .normal)         learntoplaybutton.titlelabel.font = uifont(name: "helveticaneue-ultralight", size: 35)         learntoplaybutton.titlelabel.textalignment = .center         learntoplaybutton.addtarget(self, action: "learntoplaypage:", forcontrolevents: .touchupinside)         learntoplaybutton.frame = cgrectmake(37, 70, 500, 200)  initiallaunchcontroller.backgroundcolor = uicolor.whitecolor()         teachingscreen.backgroundcolor = uicolor.whitecolor()          initiallaunchcontroller.userinteractionenabled = true         teachingscreen.userinteractionenabled = true      func learntoplaypage(sender: uibutton!) {         //switch view teach learn play          println("debugging..")          let imageviewinsidefunc = uiimageview(image: background)         self.teachingscreen.addsubview(imageviewinsidefunc)         self.teachingscreen.addsubview(titletoteachtoplaylabel)         self.teachingscreen.addsubview(teachtoplaylabel)         self.teachingscreen.addsubview(suregetstartedbutton)         self.initiallaunchcontroller.addsubview(teachingscreen)      }

you should wrap action parameter selector initializer:

learntoplaybutton.addtarget(self, action: selector("learntoplaypage"), forcontrolevents: uicontrolevents.touchupinside)

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