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iOS

Simen Anthonsen
Simen Anthonsen
1,097 Points
Posted by Simen Anthonsen
Simen Anthonsen
1,097 Points

Customize textfield

Ok, so in my project i have created a deck of cards just like this:

       enum CardSuit: Int {
       case Diamonds = 0, Clubs, Hearts, Spades
       }
       enum CardValue: Int {
      case Two = 2, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Jack, Queen, King, Ace
      }
     class Card {
    var value: CardValue
    var suit: CardSuit

    init(value initialValue: CardValue, suit initialSuit: CardSuit) {
        value = initialValue
        suit = initialSuit

My objective is to get an UITexftield to be allowed to only contain name of the cards. The card that was written would be sent to an array. For example if twoOfHearts was written in the textfield the card twoOfHearts would be sent to an array. My "dream" code would be something like this: array.append(textfield.text)

The user can write anything he wants and still be able to push the button, but if he don´t write a card´s name, he will get a notification saying something like "Not a valid input". My button will be enabled as long as there som kind of input in the textfield.

If the user writes a valid card name and pushes the button, he will get a notification saying "You played (cards name)", and the card will be assigned to an array. I have sort of managed that by doing this: if textfield.text! == "TwoHearts" { array.append(twoOfHearts) }

But I am thinking there have to be a better and simpler way?

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points
Jhoan Arango
Jhoan Arango
14,575 Points

Hi,

Perhaps you want to evaluate first your textField by what the user types, and if it does not match any of your criteria, then alert the user. A switch statement can do that job for you, or an if statement as well. You can place the names of all your cards in a separate array, then iterate through it with a for in loop, and switch it with a best response.

something like 

let cards = ["Hearts", "King","Etc"]
let textField = textField.text


for card in cards {
    switch card {
    case card where card == textField:
        print("You played \(card)")
       // Or Append to an array
    case card where card == textField:
        print("You played \(card)")
      // Or Append to an array
    default:
        // Alert Window with other instructions or actions
    }
}

Or something of that nature.

Hope this idea helps you.

Good luck

Simen Anthonsen
Simen Anthonsen
1,097 Points
Simen Anthonsen
Simen Anthonsen
1,097 Points

Hi, thanks for your help. Looks like a good idea, but when i try to append the card in an array like this:

     case card where card == textfield:
     print("You played \(card)")
     array.append(card)

I get an error saying "Cannot convert value of type "String" to expected argument type "Card"

The print statement works fine, but seeing as card is a string it can´t get appended to an array of Cards which is the whole point.

The card that gets appended to an array, needs to have the value and suit value.