Using IBAction button to cycle two different sets of instructions upon multiple presses

Question

I'm new to coding and have been attempting to put myself through an intensive course in swift. Right now I'm working on a project that I would like to have a IBAction button that completes "set 1" of instructions on first press, then "set 2" of instructions on second press. Then, press 3 would revert back to "set 1" instructions, press 4 "set 2" and so forth.

Forgive me if this is elementary, but any help would be appreciated.

//Set 1 instructions with the IBAction would be

@IBAction func punchInButtonPressed(sender: AnyObject) {

    statusLabel.text = "Status: Punched In"
    statusLabel.backgroundColor = UIColor(red: 96/255.0, green: 191/255.0, blue: 111/255.0, alpha: 1.0)

//Set 2 instructions would be

statusLabel.text = "Status: Punched Out"
statusLabel.backgroundColor = UIColor(red: 255/255.0, green: 110/255.0, blue: 115/255.0, alpha: 1.0)

Answer 1

You can handle this by adding a variable to your class that will hold the "state" of the button - punched in or punched out. Then, when the button is pressed, you toggle the state and then display the correct message:

class MyViewController: UIViewController {
    var punchedIn = false
    // rest of declarations

    @IBAction func punchInButtonPressed(sender: AnyObject) {
        // toggle status
        punchedIn = !punchedIn

        // show correct message
        if punchedIn {
            // set 1
            statusLabel.text = "Status: Punched In"
            statusLabel.backgroundColor = UIColor(red: 96/255.0, green: 191/255.0, blue: 111/255.0, alpha: 1.0)
        } else {
            // set 2
            statusLabel.text = "Status: Punched Out"
            statusLabel.backgroundColor = UIColor(red: 255/255.0, green: 110/255.0, blue: 115/255.0, alpha: 1.0)
        }
    }
}