SwiftUI toggles not changing when clicked on - swift

Question

I'm trying to build a simple SwiftUI view that displays a number of toggles. While I can get everything to display ok, I cannot get the toggles to flip. Here's is a simplified code example:
import SwiftUI
class StoreableParam: Identifiable {
let name: String
var id: String { name }
#State var isEnabled: Bool
let toggleAction: ((Bool) -> Void)?
init(name: String, isEnabled: Bool, toggleAction: ((Bool) -> Void)? = nil) {
self.name = name
self.isEnabled = isEnabled
self.toggleAction = toggleAction
}
}
class StoreableParamViewModel: ObservableObject {
#Published var storeParams: [StoreableParam] = []
init() {
let storedParam = StoreableParam(name: "Stored Param", isEnabled: false) { value in
print("Value changed")
}
storeParams.append(storedParam)
}
}
public struct UBIStoreDebugView: View {
#StateObject var viewModel: StoreableParamViewModel
public var body: some View {
VStack {
List {
ForEach(viewModel.storeParams, id: \.id) { storeParam in
Toggle(storeParam.name, isOn: storeParam.$isEnabled)
.onChange(of: storeParam.isEnabled) {
storeParam.toggleAction?($0)
}
}
}
}.navigationBarTitle("Toggle Example")
}
}

Answer 1

As mentioned in the comments, there are a couple of things going on:
#State is only for use in a View
Your model should be a struct
Then, you can get a Binding using the ForEach element binding syntax:
struct StoreableParam: Identifiable {
let name: String
var id: String { name }
var isEnabled: Bool
let toggleAction: ((Bool) -> Void)?
}
class StoreableParamViewModel: ObservableObject {
#Published var storeParams: [StoreableParam] = []
init() {
let storedParam = StoreableParam(name: "Stored Param", isEnabled: false) { value in
print("Value changed")
}
storeParams.append(storedParam)
}
}
public struct UBIStoreDebugView: View {
#StateObject var viewModel: StoreableParamViewModel
public var body: some View {
VStack {
List {
ForEach($viewModel.storeParams, id: \.id) { $storeParam in
Toggle(storeParam.name, isOn: $storeParam.isEnabled)
.onChange(of: storeParam.isEnabled) {
storeParam.toggleAction?($0)
}
}
}
}
}
}