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iOS

Posted by Bryan Krossley
Bryan Krossley
1,644 Points

@IBAction & @IBOutlet

Hi, I have a @IBAction from a UIButton with a sender: I also have @IBOutlet fronm the same button. Why does this cause an error?

obey me
obey me
1,135 Points

can you put up the code for us to help you ..

Bryan Krossley
Bryan Krossley
1,644 Points

I will as soon as I get home this evening.

Thanks

12 Answers

Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

whatever you name it shouldn't matter, as long as you are properly referring to them throughout your code...it's really more for your own organization and not confusing them.

as far as your code is concerned...I'm novice myself...so I couldn't help much there. haha! I'm glad you figured it out though!

Taylor Smith
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.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points
Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

without seeing your code, are you naming the action and the outlet different names? If it's the same, then that would cause an error

Bryan Krossley
Bryan Krossley
1,644 Points
Bryan Krossley
Bryan Krossley
1,644 Points

Taylor, They do have different names for example the name for the IBAction is orangeBtnPushed and the IBOutlet is orangedBtnPressed. I'm new to iOS bevelopment and the Interaction builder.

Thanks

Taylor Smith
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points
Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

are you getting this error:

https://teamtreehouse.com/forum/what-does-thread-1-signal-sigabrt-mean ?

Bryan Krossley
Bryan Krossley
1,644 Points
Bryan Krossley
Bryan Krossley
1,644 Points

I think that is it. I'll check when I get home to be sure. I will say this that I am pretty sure that the connection and name correctly because I have deleted them and redone them to make sure. But I do have the IBAction and IBOutlet named differently on the same button.

Taylor Smith
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.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points
Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

interesting..ok..well let us know when you get home!

Bryan Krossley
Bryan Krossley
1,644 Points
Bryan Krossley
Bryan Krossley
1,644 Points 
var buttonSender = UIButton()

 @IBOutlet weak var orangeBtnPicked: UIButton!

@IBAction func startGame() {

        firstButtonPressed()

    }

    func firstButtonPressed(){

       // var firstButton = randomNumber.randomNumberGen
        var firstButton = 0

        switch firstButton{
                    case 0:
                       orangeBtnPicked.alpha = 1
                    case 1:
                        purpleBtnPicked.alpha = 1
                    case 2:
                        redBtnPicked.alpha = 1
                    case 3:
                        blueBtnPicked.alpha = 1
                    case 4:
                        greenBtnPicked.alpha = 1
                    case 5:
                        yellowBtnPicked.alpha = 1
                    default:
                        7
                    }
         var timer = NSTimer.scheduledTimerWithTimeInterval(0.7, target: self, selector: "alphaSetting", userInfo: nil, repeats: false)
    }

    @IBAction func orangeBtnPressed(sender: UIButton) {
        buttonSender = sender
        sender.alpha = 1
        var timer = NSTimer.scheduledTimerWithTimeInterval(0.7, target: self, selector: "alphaSetting", userInfo: nil, repeats: false)
    }

   func alphaSetting(){
        if buttonSender.selected == true{
        buttonSender.alpha = 0.5
        }
        else {
          orangeBtnPicked.alpha = 0.5
        }

    }
Taylor Smith
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points
Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

what error are you receiving?

Bryan Krossley
Bryan Krossley
1,644 Points
Bryan Krossley
Bryan Krossley
1,644 Points

I might have figured it out. I took a closer look at the connection with IB and it was trying to use touch up outside instead of inside.

Taylor, I sure there is better ways to write the code than what I used but should the IBAction and IBAction work ok if they have different names? Any suggestions would be welcomed.

Thanks

Bryan Krossley
Bryan Krossley
1,644 Points
Bryan Krossley
Bryan Krossley
1,644 Points

Taylor, Is there anyway to see what is going on in IB behind the scenes?

Thanks

Taylor Smith
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.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points
Taylor Smith
.a{fill-rule:evenodd;}techdegree seal-36
Taylor Smith
iOS Development Techdegree Graduate 14,153 Points

The only thing I can think of is if you right click (or ctrl click) your button, it will give you the IB connections you've made, giving you options to change them, delete them, etc. other than that I have no clue! lol

Bryan Krossley
Bryan Krossley
1,644 Points
Bryan Krossley
Bryan Krossley
1,644 Points

Thank you for your help.

Bryan