This code has the following issue: The first click on any list item will show the sheet with "This is sheet 0" - meaning that @State property "var example: Int" is not updated as part of the button code (exit live preview and start again, will reproduce the issue)

Any idea what is happening here !?

Code:

import SwiftUI

struct testing2: View {
    @State private var showSheet = false
    @State var example: Int = 0
    var computedItem: String {
        "This is sheet \(example)"
    }

    var body: some View {
        List(0 ..< 5) { item in
            Button("List item: \(item)") {
                self.example = item
                showSheet.toggle()
            }
        }
        .sheet(isPresented: $showSheet, content: {
            Text("\(computedItem)")
        })
    }
}

struct testing2_Previews: PreviewProvider {
    static var previews: some View {
        testing2()
    }
}

@State
    private var showSheet = false
    @State
    private var number: Int = 0

    var body: some View {
        List {
            ForEach(0..<5) { item in
                Button(
                    action: {
                        number = item
                        showSheet.toggle()
                    },
                    label: {
                        Text("Item: \(item)")
                    }
                )
            }
        }
        .sheet(
            isPresented: $showSheet) {
            Text("This is sheet: \(number)")
        }
    }

This works as expected.

Thanks a lot. But this helped me find the solution:

https://stackoverflow.com/questions/63928736/ios14-introducing-errors-with-state-bindings