Fade In Fade Out Animation

Question

Here is some code I struggle with for a while.

If you start the fade in animation, the label text fades in. If I start the fade out animation the the label text fades ou

Answer 1

Swift 4 If you need just one pulse when clicking the button, use that:

@IBAction func didPressButton(_ sender: UIButton) {
        self.someView.alpha = 0
        UIView.animate(withDuration: 0.4,
                       delay: 0,
                       options: [.curveEaseInOut, .autoreverse],
                       animations: {
                        self.someView.alpha = 1
        },
                       completion: { _ in
                        self.someView.alpha = 0
        })
    }