How to change button destiny with segmented control?

What do mean:

On the same page, I have a button leading to the next page

So I understand the button and segmented control are on the same view

but

My segemented control is located in my ViewController.swift and my button in Main.storyboard.

storyboard is a set of views. The button must be in a view. Which one is it ?

In addition, I suppose you have declare an IBOutlet for segmented control, as

@IBOutlet var Sege : UISegmentedControl!

Did you do it ?

Note that by convention, the name should start with a lowercase sege

Hi Claude, thanks for your help!

Yea I did it like this:

@IBOutlet weak var Sege: UISegmentedControl!

Also the button is on the same view as the segmented control.

So there is no problem to make it work.

You connect the button to the IBAction.

To check, just add at the beginning of the IBAction

print("Test segment value ", sege.selectedSegmentIndex)

What is this UNKNOWN in your code ?

To lead to another view, you can use segues.

Create a segue from the first view (the one with segmented control and button) to the destination view by control drag from the yellow button at the top of firstView to the destination (you can have several segues like this).

Name it "FirstSegue" in IB (Identifier of segue) ; it will be used if segment 0 is selected

You should also add a default value:

@IBAction func startRide(_ sender: UIButton) {
       print("Test segment value ", sege.selectedSegmentIndex )

        switch Sege.selectedSegmentIndex {
        case 0 :
            performSegue(withIdentifier: "FirstSegue", sender: nil) // can also write sender : sender
        case 1:
            break
        case 2:
            break
        case 3:
            break
        case 4:
            break
        case 5:
            break
        case 6:
            break
        default :
            break
        }
    }

Hey, sorry that it took me so long to answer, but I have a problem and tried to figure it out.

I connected my first view to 3 different views, as you said, and named them "FirstSegue", "SecondSegue" and "ThirdSegue".

When I start my App now, the first value of the segmented view is selected, and the button to to the "FirstSegue" view, as it should, but when i just click on the second or third value, the app crashes and I get an error "Thread 1: signal SIGABRT".

According to the internet, I should delete onee "Referencing Outlet", but except for the segmented control there is one. If I delete the one from the segmented control nothing works. Do you know where the problem is?

Figured it out and now it works, thanks a lot!