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I want to make it like this How to disable the button that open the side bar, I only need the content and the detail view. I don't need the sidebar view. Below is my code import SwiftUI @available(iOS 16.0, *) struct Screen: View { @ObservedObject var userData = UserData() @State private var isIntroShown = true @State var Itema: Bool = false @State private var showFoodDetail = false @State var rb: Bool = false @State var Setting: Bool = false @State var Recipe: Bool = false @Environment(\.defaultMinListRowHeight) var minRowHeight @Environment(\.colorScheme) var colorScheme @State private var searchText = "" private let adaptiveColumns = [ GridItem(.adaptive(minimum: 170)) ] var columns = Array(repeating: GridItem(.flexible(), spacing: 10), count: 2) var filteredRooms: [Room] { if searchText.isEmpty { return userData.rooms } else { return userData.rooms.filter { room in let foodNames = room.food.map { $0.name.lowercased() } return room.name.lowercased().contains(searchText.lowercased()) || foodNames.contains { $0.contains(searchText.lowercased()) } } } } @State private var columnVisibility = NavigationSplitViewVisibility.doubleColumn var body: some View { NavigationSplitView (columnVisibility: $columnVisibility){ } content: { ScrollView{ GridView() .padding(.horizontal) .padding(.bottom, 20) }.toolbar { ToolbarItem(placement: .bottomBar){ Button(action:{self.Itema = true}) { HStack { Image(systemName: "plus.circle.fill").resizable().frame(width: 20, height: 20).foregroundColor(.white) Text("New Item").foregroundColor(.white).bold() } } .sheet(isPresented: self.$Itema){ NewItem(userData: self.userData) } } ToolbarItem(placement: .bottomBar){ Button(action:{self.rb = true}) { HStack { Text("New Room").foregroundColor(.white) } } .sheet(isPresented: self.$rb){ NewRoom(userData: self.userData) } } ToolbarItem(placement: .navigationBarTrailing){ Button(action:{self.Setting = true}) { HStack { Image(systemName: "gear").foregroundColor(.white) } } .sheet(isPresented: self.$Setting){ NavigationView { NewItem( userData: userData) .navigationBarItems(trailing:Button(action: { self.Setting = false }){ Text("Done") } ) } } } } .background(Color(red: 203/255, green: 237/255, blue: 207/255)) } detail: { ZStack { Text("") } .frame(maxWidth: .infinity, maxHeight: .infinity) .background(Color(red: 220/255, green: 247/255, blue: 234/255)) } .searchable(text: $searchText) } }

I want to make a picker can choose the room where item put. But the picker is not work. import SwiftUI struct NewItem: View{     @Environment(\.dismiss)var dismiss     @ObservedObject var itemStore = ItemStore()     @ObservedObject var roomStore = RoomStore()     @State  var Title = ""     @State  var Name = ""     @State private var selectedRoom: Room? = RoomStore().rooms.first     @State  var Notes = ""     var body: some View{         NavigationView {             List {                 Section{                     TextField("Title", text: $Title)                     TextField("Details", text: $Notes)                 }header: {                     Text("Detail")                 }                                                   Section{                     Picker(selection: $selectedRoom, label: Text("Room")) {                         ForEach(roomStore.rooms) { room in                                 Text(room.name).tag(room)                             }.onReceive([selectedRoom].publisher.first()) { (room) in                                 self.selectedRoom = room                             }.pickerStyle(MenuPickerStyle())                     }                 }             }.listStyle(.insetGrouped)                 .navigationBarTitle("New Item")                 .navigationBarTitleDisplayMode(.inline)                 .interactiveDismissDisabled()                 .toolbar{                     ToolbarItem(placement: .navigationBarTrailing){                         Button("Save") {                             let newItem = Item(title: self.Title, note: self.Notes, isComplete: false, room: self.selectedRoom?.name ?? "")                             self.itemStore.items.append(newItem)                             self.dismiss()                         }.disabled(Title == "")                     }                                          ToolbarItem(placement: .navigationBarLeading){                         Button("Cancel"){                             dismiss()                         }                     }                 }         }     } }