UIButton Blinking is working but, the button Action not Working

Question

Using "@IBOutlet var checkAvalibilityBtn: UIButton!", created a blinking code and called in viewdidLoad

   `override func viewDidLoad() {
    super.viewDidLoad()

    self.checkAvalibilityBtn.alpha = 1.0
    UIView.animate(withDuration: 0.80, delay: 0.0, options: [.curveEaseIn, .repeat, .autoreverse, .allowUserInteraction], animations: {() -> Void in
        self.checkAvalibilityBtn.alpha = 0.0
    }, completion: {(finished: Bool) -> Void in
    })`

But the buttion Action is not Working

@IBAction func checkBAvaBtnClick(_ sender: UIButton) { print("Success") }

I think you need to invert your alpha there after it works – Anbu.Karthik Mar 25 '19 at 03:58 — Anbu.Karthik, Mar 25 '19 at 03:58
If your button has alpha = 0.0, it won't catch the action – Quoc Nguyen Mar 25 '19 at 04:06 — Quoc Nguyen, Mar 25 '19 at 04:06

score 3 · Accepted Answer · answered Mar 25 '19 at 04:09

view alpha 0 does not receive touch events from the system, Refer SO old answer

override func viewDidLoad() {
    super.viewDidLoad()

    self.checkAvalibilityBtn.alpha = 0.0
    UIView.animate(withDuration: 0.80, delay: 0.0, options: [.curveEaseIn, .repeat, .autoreverse, .allowUserInteraction], animations: {() -> Void in
        self.checkAvalibilityBtn.alpha = 1.0
    }, completion: {(finished: Bool) -> Void in
    })

UIButton Blinking is working but, the button Action not Working

1 Answers1