import SwiftUI

​

struct Item: Identifiable {

    let id = UUID()

    var isComplete: Bool = false

}

​

class Model: ObservableObject {

    @Published var isOn: Bool = false

    @Published var arr = [Item(isComplete: true), Item(isComplete: false), Item(isComplete: true), Item(isComplete: false), Item(isComplete: true), Item(isComplete: true)]

}

​

struct ContentView: View {

    @ObservedObject var model = Model()

​

    var body: some View {

        List {

​

            Toggle(isOn: $model.isOn) { Text("Toggle") }

​

            ForEach(self.model.arr.filter { model.isOn ? true : $0.isComplete }) { item in

                Row(item: item, model: self.model)

            }

        }

    }

}

​

struct Row: View {

    let item: Item

    @ObservedObject var model: Model

​

    var body: some View {

        HStack {

​

            Button(action: {

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                if let idx = self.model.arr.firstIndex(where: { $0.id == self.item.id }) {

                    self.model.arr[idx].isComplete.toggle()

                    self.model.isOn = false

                }

​

            }) {

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                Text("Button")

​

            }

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            Text(item.isComplete ? "Complete" : "Not complete")

​

        }

    }

}