Swift - determine which button was pressed with switch

Question

I have 4 buttons that call one function. Depending on which button was pressed i need to hide button inside of function that called after pressing.I dont know which button w

Answer 1

I know this has been answered, but if you set this up in IB, then I would recommend you check if the button was pressed by using the @IBOutlet variables as cases.

class SomeView: UIView {
    @IBOutlet weak var buttonA: UIButton!
    @IBOutlet weak var buttonB: UIButton!
    @IBOutlet weak var buttonC: UIButton!

    @IBAction func didHitButton(_ sender: UIButton) {
        switch sender {
        case buttonA:
            doThis()
        }
        case buttonB:
            doThat()
        }
        case buttonC:
            doThisAgain()
        }
        default:
            doNothing()
        }
    }
    ...
}

Now you hook up the buttons in your NIB to each @IBOutlet, and all of the buttons to the one @IBAction didHitButton.

This is pretty straight forward, and you don't have to worry about tags or changing names.