I want to create a loop that creates 10 different strings and use that strings to show 10 different-CodePudding

import Foundation

class Card: Identifiable, ObservableObject {

var id = UUID()
var result: String = ""

init() {

for _ in 1...10 {

let suit = ["D","K","B","S"][Int(arc4random() % 4]
let numStr = ["1","2","3","4"][Int(arc4random() % 4]

result = suit   numStr
     }
   }
}



import SwiftUI

struct EasyModeView: View {

@ObservedObject var cardModel: Card

var body : some View {

HStack {

ForEach((1...10, id: \.self) { _ in 

Button { } label: { Image(cardModel.result) } } }

   }
}

I created loop but it always shows me 10 same cards and i want all 10 different. My Images in Assets are named same as combination of two variables example "D1","D2","S1","S2" etc.

CodePudding user response：

You are using only one card, instead of creating 10. Fix like this

struct EasyModeView: View {
    
    var body : some View {
        HStack {
            ForEach(0..<10) { _ in
                Button { } label: {
                    Image(Card().result)
                }
            }
        }
    }
}

CodePudding user response：

Here is a right way of what you are trying:

struct ContentView: View {
    
    var body: some View {
        
        EasyModeView()
        
    }
    
}

struct EasyModeView: View {
    
    @StateObject var cardModel: Card = Card()
    
    var body : some View {
        
        HStack {
            
            ForEach(cardModel.results) { card in

                Button(action: {}, label: {
                    
                        Text(card.result)
                            .padding(3.0)
                            .background(Color.yellow.cornerRadius(3.0))
                    
                })
                
            }
            
        }
        
        Button("re-set") { cardModel.reset() }.padding()

    }
}

struct CardType: Identifiable {

    let id: UUID = UUID()
    var result: String
}

class Card: ObservableObject {
    
   @Published var results: [CardType] = [CardType]()
    
    private let suit: [String] = ["D","K","B","S"]
    
    init() { initializing() }
    
    private func initializing() {
        
        if (results.count > 0) { results.removeAll() }
        
        for _ in 0...9 { results.append(CardType(result: suit.randomElement()!   String(describing: Int.random(in: 1...4)))) }
        
    }
    
    func reset() { initializing() }
    
}

Result: