ListStyles

import SwiftUI

enum Style: String, CaseIterable {
    case grouped, inset, insetGrouped, plain, sidebar
}

struct ContentView: View {
    @State private var selectedStyle: Style = .plain

    var body: some View {
        VStack {
            Picker("List Style", selection: $selectedStyle) {
                ForEach(Style.allCases, id: \.self) { style in
                    Text(style.rawValue)
                }
            }
            List {
                Section("Breakfast") {
                    Text("pancakes")
                    Text("bacon")
                    Text("orange juice")
                }
                Section("Lunch") {
                    Text("sandwich")
                    Text("chips")
                    Text("lemonade")
                }
                Section("Dinner") {
                    Text("spaghetti")
                    Text("bread")
                    Text("water")
                }
            }
            .listStyle(for: selectedStyle)
        }
    }
}

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



extension List {
    @ViewBuilder
    func listStyle(for customListStyle: Style) -> some View {
        switch customListStyle {
        case .grouped:
            listStyle(.grouped)
        case .inset:
            listStyle(.plain)
        case .insetGrouped:
            listStyle(.insetGrouped)
        case .plain:
            listStyle(.plain)
        case .sidebar:
            listStyle(.sidebar)
        }
    }
}