How to use one IBAction for multiple buttons in Swift?

Question

I have multiple buttons each one with the ability to switch the language of the app. Instead of having to create multiple IBActions for each button is there a way to have t

Answer 1

Do not set tag if you have reference to the button.

You can just compare the reference instead of tags. This way, you won't introduce a new bug, because unlike a tag that you type yourself, reference is created by compiler automatically.

@IBOutlet weak var firstButton: UIButton!
@IBOutlet weak var secondButton: UIButton!
@IBOutlet weak var thirdButton: UIButton!

@IBAction changeLanguage(sender: UIButton) {
    if sender == firstButton {

    } else if sender == secondButton {

    } else if sender == thirdButton {

    }
}