How can I animate displaying UIPickerView after pressing button?

Question

I want to animate my UIPickerView after pressing the button. I already have coded my UIPickerView to be hidden on viewDidLoad and not hidden after pressing a button, but it does

Answer 1

Swift 3 Solution

I agree with @EshwarChaitanya, the alpha property is animatable and this is an appropriate use.

override func viewDidLoad() {
    super.viewDidLoad()
    
    timersPickerView.alpha = 0
}

@IBAction func selectTimer() {
    UIView.animate(withDuration: 0.3, animations: {
        self.timersPickerView.alpha = 1
    })
}

I am not sure how you want to hide it so I will leave it up to you.