import SwiftUI

struct CheckView: View {
    @State private var number: String = ""
    @FetchRequest(entity: Vehicle.entity(), sortDescriptors: []) var vehicles: FetchedResults<Vehicle>
    
    var body: some View {
        NavigationView {
            VStack(alignment: .center, spacing: 16) {
                TextField("A123AA777", text: $number)
                Button("Check") {
                    
                }
                List(vehicles) { vehicle in
                    Text(vehicle.number ?? "<none>")
                }
            }
            .toolbar {
                ToolbarItem(placement: .primaryAction) {
                    Button("New") {}
                }
            }
            #if os(iOS)
            .navigationBarTitle("Title", displayMode: .inline)
            #endif
        }
    }
}

struct CheckView_Previews: PreviewProvider {
    static var previews: some View {
        CheckView()
            .preferredColorScheme(.dark)
    }
}