Swift Segmented Control

Question

I made a segmented control in swift that changes a boolean to either true or false; However, every time I select "selectedSegmentedIndex == 1" in the application, I get error "Thread 1: signal SIGABERT"

My code goes as flows:

@IBOutlet weak var translationType: UISegmentedControl!

var state = true

@IBAction func translation(_ sender: Any)
{
    if translationType.selectedSegmentIndex == 0
    {
     state = ture
    }
    else if translationType.selectedSegmentIndex == 1
    {
     state = false
    }
}

Any information would be greatly appreciated. Thanks.

My guess is that you didn't link correctly this line @IBOutlet weak var translationType: UISegmentedControl! with the corresponding item in the Storyboard. — Larme
– Larme, Commented Aug 5, 2018 at 19:55

vadian · Accepted Answer · 2018-08-05 22:19:03Z

1

At least using the sender parameter and the static type avoids the crash if translationType is not connected – which is most likely the case.

@IBAction func translation(_ sender: UISegmentedControl)
{
    if sender.selectedSegmentIndex == 0
    {
     state = true
    }
    else if sender.selectedSegmentIndex == 1
    {
     state = false
    }
}

or a bit shorter

@IBAction func translation(_ sender: UISegmentedControl)
{
     state = sender.selectedSegmentIndex == 0
}

edited Aug 5, 2018 at 22:19

answered Aug 5, 2018 at 22:07

vadian

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Comments

Arie Pinto · Accepted Answer · 2018-08-05 21:58:02Z

0

var state = true

@IBOutlet weak var translationType: UISegmentedControl!

@IBAction func translation(_ sender: UISegmentedControl)
{
    if translationType.selectedSegmentIndex == 0
    {
        state = true
    }
    else if translationType.selectedSegmentIndex == 1
    {
        state = false
    }

    print(state)
    print(translationType.selectedSegmentIndex)
}

answered Aug 5, 2018 at 21:58

Arie Pinto

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4 Comments

vadian Over a year ago

This crashes as well if translationType is nil

Arie Pinto Over a year ago

well if the translationType is nil than uts not properly connected myfriend , reconnect it from the storyboard

vadian Over a year ago

Yes, therefore your code makes no difference at all.

Arie Pinto Over a year ago

just trying to help my dear friend

mila kohen · Accepted Answer · 2019-04-03 12:48:17Z

0

make sure your outlet is connected! see connection inspector

answered Apr 3, 2019 at 12:48

mila kohen

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1 Comment

saurav Over a year ago

This could have been a comment.

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