在导航回视图时更新SwiftUI选择器最小和最大

当需要实时更改选择器范围时，可以考虑.id()。下面的示例可以解决这个特定问题。它可能涉及到实际复杂情况下的其他情况，如数据绑定。但那是另一个故事。``` struct Ticket : Hashable{ var min1 : Int var max1 : Int var pick1 : Int }

            struct CoolPickers: View {


                 @State var ticket: Ticket = Ticket(min1: 1, max1: 10, pick1: 2)

                var body: some View {
                    GeometryReader { geometry in
                NavigationView{
                    VStack{
                        NavigationLink("Next", destination: SettingPickersView(ticket: self.$ticket))
                    Picker(selection: self.$ticket.pick1, label: Text("")) {
                        ForEach(self.ticket.min1 ... self.ticket.max1, id: \.self) {
                                Text("\($0)")
                                .frame(width: geometry.size.width / 6)
                            }
                    }.id(self.ticket)
                    }}
                }
                }

            }

            struct SettingPickersView: View {
                @Binding var ticket: Ticket

                var body: some View {
                    Group{
                    Text("Pick One")
                        .fontWeight(.bold)
                    Stepper(value: $ticket.min1, in: 1...100, label: {Text("Minimum: \(ticket.min1)")})
                    Stepper(value: $ticket.max1, in: 1...100, label: {Text("Maximum: \(ticket.max1)")})
                    }}

            }