In Swift 5, How to execute actions successively in UIAlert? - swift

Question

I have created an alert Where a mybutton have to be hidden while the activity indicator has to be shown. but it didn't work.
Here is the code:
private func showAlert() {
let alert = UIAlertController(title: "aaaaaa", message: ccccccccc, preferredStyle: .alert)
let attributedString = NSAttributedString(string: "aaaaa", attributes: [.font: UIFont.boldSystemFont(ofSize: 18), //your font here
.foregroundColor : Theme.bleu!])
alert.setValue(attributedString, forKey: "attributedTitle")
alert.addAction(UIAlertAction(title: annuler, style: .cancel))
alert.addAction(UIAlertAction(title: optimiserLesMicrosUniquement, style: .default, handler: { (action) in
self.myButton.isHidden = true // Here begins the problem
self.activityIndicator.isHidden = false
let menuOptimiser = functionNumberX()
self.activityIndicator.isHidden = true // Here is the problem
self.myButton.isHidden = false
let reponse = menuOptimiser.0
if reponse == false {
self.showAlerteMenuOptimal()
} else {
if menuOptimiser.1 > 0 {
self.presentAlerteDuGain(gain: menuOptimiser.1, menu: menuOptimiser.2)
} else {
self.presentAlerteOptimisationSansGainDeCalories(calorie: abs((round(menuOptimiser.1))), menu: menuOptimiser.2)
}
}
self.gestionDeLaNotationDuMenuEnCours()
}))
present(alert, animated: true)
}
When i execute it, mybutton never disappears, and activity indicator never appears.
i don't know how to do that.

Answer 1

try removing, these two lines , since you are opposite at almost the same time .
self.activityIndicator.isHidden = true // Here is the problem
self.myButton.isHidden = false

Answer 2

I just found a solution. Here is the code
var menuOptimiser : (Bool, Float, [[AlimentObject]])!
private func showAlert() {
let alert = UIAlertController(title: "aaaaaa", message: ccccccccc, preferredStyle: .alert)
let attributedString = NSAttributedString(string: "aaaaa", attributes: [.font: UIFont.boldSystemFont(ofSize: 18), //your font here
.foregroundColor : Theme.bleu!])
alert.setValue(attributedString, forKey: "attributedTitle")
alert.addAction(UIAlertAction(title: annuler, style: .cancel))
alert.addAction(UIAlertAction(title: optimiserLesMicrosUniquement, style: .default, handler: { (action) in
self.myButton.isHidden = true // Here begins the problem
self.activityIndicator.isHidden = false
DispatchQueue.main.asyncAfter(deadline: .now()) {
let menuOptimiser = functionNumberX()
self.activityIndicator.isHidden = true // Here is the problem
self.myButton.isHidden = false
let reponse = menuOptimiser.0
if reponse == false {
self.showAlerteMenuOptimal()
} else {
if menuOptimiser.1 > 0 {
self.presentAlerteDuGain(gain: menuOptimiser.1, menu: menuOptimiser.2)
} else {
self.presentAlerteOptimisationSansGainDeCalories(calorie: abs((round(menuOptimiser.1))), menu: menuOptimiser.2)
}
}
}
self.gestionDeLaNotationDuMenuEnCours()
}))
present(alert, animated: true)
}