CODEWITHSUNDEEP
swiftui
thekodols
thekodols

Reputation: 475

How to change a property of an element returned by a ForEach structure

I'm trying to do this:

struct ContentView : View {

    struct Element {
        var color: Color
    }

    @State var array = [Element, Element, Element]


ForEach(array){ element in
    Rectangle()
        .foregroundColor(element.color)
        .tapAction {
            element.color = Color.red
        }

I can't do that because the element is a let constant.

How would I go about making the element a variable so that I can change its properties?

*Edited to add more code.

Upvotes: 0

Views: 186

Answers (1)

kontiki
kontiki

Reputation: 40509

Ok, you should rewrite your code like this:

import SwiftUI

struct ContentView : View {

    struct Element {
        var color: Color
    }

    @State private var array = [Element(color: .red), Element(color: .green), Element(color: .blue)]

    var body: some View {
        ForEach(0..<array.count) { i in
            return Rectangle()
                .foregroundColor(self.array[i].color)
                .tapAction {
                    self.array[i].color = Color.red
            }
        }
    }
}

Upvotes: 1

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