Looping programmed labels and buttons - ios

Question

In the last viewcontroller of my app I wrote a code which creates a number of labels which are filled with random characters from a set
Under the labels textfields appear where the user should match the characters from the labels. When he hits the button, his answer is checked. If the answer is right the score is updated.
After that the score label should update, and new text for the labels with characters should be generated and shown, but that's where I get stuck... My instinct would be to add a loop to the code in the viewDidLoad, but as the code to check the answer is in the buttonAction function outside of the viewDidLoad, I don't know how to do this...
Here is some code from my app which might clarify things. I deleted quite a lot of straightforward code and put a comment line in just for this example.
override func viewDidLoad()
{
super.viewDidLoad()
// variables are declared, the number of labels is calculated based on the frame size
// the text for the labels is calculated based on a function in a separate class I wrote
var a = 0
while a < numberOfLabels {
// the UILabels are made and filled
// the corresponding UITextFields are made
a += 1
labelX += labelWidth
}
// then here the button is coded, the last lines are:
myButton.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
view.addSubview(myButton)
}
#objc func buttonAction(sender: UIButton!) {
var a = 0
var rightAnswer = false
var userInput: [String] = Array()
while a < numberOfLabels.shared.category! {
if let theLabel = self.view.viewWithTag(a) as? UITextField {
let tekstInput = theLabel.text
userInput.insert(tekstInput!, at:a-1)
}
a = a + 1
}
let controle = Controle()
rightAnswer = controle.checkAnswer(userAnswer: userInput)
if rightAnswer {
if var score = PassScore.shared.category {
score += 1
PassScore.shared.category = score
}
else {
var score = 1
PassScore.shared.category = score
}
}
return
}

Answer 1

Have your initialization code in a function
func setupLabels() {
var a = 0
while a < numberOfLabels {
// the UILabels are made and filled
// the corresponding UITextFields are made
a += 1
labelX += labelWidth
}
}
And call it whenever you need it:
override func viewDidLoad()
{
super.viewDidLoad()
setupLabels()
}
#objc func buttonAction(sender: UIButton!) {
//...
setupLabels()
}