How to loop through an enum in SwiftUI?

In SwiftUI, looping through an enum is not directly possible without some extra work because enums in Swift don’t inherently support iteration. However, you can achieve this by making the enum CaseIterable, which automatically provides a collection of all cases in the enum.

Here’s how you can loop through an enum using CaseIterable:

Example

import SwiftUI

// Define your enum and make it conform to CaseIterable
enum Fruit: String, CaseIterable {
    case apple = "Apple"
    case banana = "Banana"
    case cherry = "Cherry"
}

struct ContentView: View {
    var body: some View {
        // Use List to loop over the enum cases
        List(Fruit.allCases, id: \.self) { fruit in
            Text(fruit.rawValue)
        }

        // Or, use ForEach to loop over the enum cases
        ForEach(Fruit.allCases) { fruit in
            Text(fruit.rawValue)
                .padding()
                .font(.title2)
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

Explanation

• CaseIterable automatically synthesizes a static allCases property, which is an array containing all the cases of the enum.
• You can loop through Fruit.allCases in a SwiftUI List or any other loop construct.
• id: \.self ensures each fruit case is uniquely identifiable, which is necessary when using enums in views like List.

This is the easiest way to loop through an enum in SwiftUI.