How to randomize cards data from model array without repetition - swift

Question

I am displaying cards data from my model array, how do i randomize card data everytime i start the app and should not be repetitive. I am using ZLSwipeable view library for creating cards fro swipe feature. this is the function in which i have write all my code for swipe cards, and in the code wordsdata is the model array that i have declaredlike this var wordsdata = ModelRsult.
CardView is the view i am displaying my cards into
screenshot of my card display screen
in the image it is shown banana as the first data, now when i run the app again it should show me another data first and so on
my source code:
func nextCardView() -> UIView?
{
let arrayData = wordsData
if (self.colorIndex >= arrayData.count)
{
return nil
}
let cardView = CardView(frame: swipeableView.bounds)
if loadCardsFromXib
{
let contentView = Bundle.main.loadNibNamed("CardContentView", owner: self, options: nil)?.first! as! CardView
contentView.superVC = self
contentView.translatesAutoresizingMaskIntoConstraints = false
contentView.backgroundColor = cardView.backgroundColor
cardView.addSubview(contentView)
let data = arrayData[(self.colorIndex)] as ModelResult
contentView.wordModel = data
let savedValue = UserDefaults.standard.bool(forKey: "isLangChanged")
tempLangChanged = savedValue
if tempLangChanged == false
{
if let spanishName = data.cardWordEnglish, spanishName.count != 0
{
contentView.wordSpanish.text = spanishName
print(spanishName)
}
}
else
{
if let dict = data.cardWordImage, dict.count != 0
{
let url = WS_wordIconUrl + dict
contentView.wordImage.kf.indicatorType = .activity
contentView.wordImage.kf.setImage(with: URL(string: url))
}
if let spanishName = data.cardWordSpanish, spanishName.count != 0
{
contentView.wordSpanish.text = spanishName
print(spanishName)
}
}
contentView.soundBtn.addTarget(self, action:#selector(self.soundBtn(sender:)), for: .touchUpInside)
contentView.hideCard.addTarget(self, action:#selector(self.hideCard(sender:)), for: .touchUpInside)
contentView.soundBtn.tag = self.colorIndex
contentView.hideCard.tag = self.colorIndex
cardView.tag = self.colorIndex
constrain(contentView, cardView) { view1, view2 in
view1.left == view2.left
view1.top == view2.top
view1.width == cardView.bounds.width
view1.height == cardView.bounds.height
}
}
colorIndex += 1
return cardView
}

Answer 1

The best way for this problem is to shuffle the array where your cards are and then use it. In your case, I would shuffle it at the app start.
array.shuffle()