In iOS 16, the primary action of the Menu cannot be triggered. The Menu itself will always pops up instead of performing the primary action. I have tried to use iOS 15 simulator to preview the same code. It works well.

Is there any convenient way to back deploy the NavigationStack or NavigationSplitView?? The real problem is if I want to back support iOS 15 or 14, I must conditionally switch between NavigationView and NavigationStack / NavigationSplitView. Here is how I did for NavigationStack, but I have no idea how to deal with NavigationSplitView import SwiftUI struct NavigationStack<Content: View>: View {     var content: () -> Content     var body: some View {         if #available(iOS 16.0, macOS 13.0, *) {             SwiftUI.NavigationStack {                 content()             }         } else {             NavigationView {                 content()             }.navigationViewStyle(.stack)         }     } } Will the new NavigationStack and NavigationSplitView back support old devices? I think these behaviors in previous OS is not new features.

I have tried a lot of codes to see what’s the difference between browser and editor, but I can’t find some changes between those two things, so i’m wondering what’s the difference between browser and editor?

I am working on a SwiftUI project and in a subview I use @FetchRequest to fetch data from CoreData. I have a menu to let user select which data to fetch, and by default I want to fetch all datas. The problem is when user open the menu and select a category then it refetch the data, it's correct and when user close the menu, the nsPredicate that the user have given will disappear and switch to the default predicate. I tried to write the same pattern code on 'EarthQuake' sample app, it has the same problem. And here is the code: List(selection: $selection) {                 ListView(search: $searchText)             }             .background(toggle ? Color.red.opacity(0.01) : nil)             .toolbar {                 ToolbarItem(placement: .bottomBar) {                     Button {                         toggle.toggle()                     } label: {                         Text("Toggle")                     }                 }             }             .searchable(text: $searchText) ListView: struct ListView: View {     @FetchRequest(sortDescriptors: [SortDescriptor(\.time, order: .reverse)]) // predicate: nil     private var quakes: FetchedResults<Quake>     @Binding var search: String     var body: some View {         ForEach(quakes, id: \.code) { quake in             NavigationLink(destination: QuakeDetail(quake: quake)) {                 QuakeRow(quake: quake)             }         }         .onChange(of: search) { newValue in             quakes.nsPredicate = newValue.isEmpty ? nil : NSPredicate(format: "place CONTAINS %@", newValue)         }     } } I can filter data by typing in the search field but when I click on Toggle Button, it may refresh the ParentView which cause the @fetchRequest to update and nsPredicate return to nil. Is this a bug? Or maybe my understand was wrong. And is there any good suggestions?

I am working on an app that allow user to taking notes, and I want to support inline editing that means users can use PencilKit feature and edit text in a single note just like the Notes app. Is there any good idea to achieve this using SwiftUI?

I have done the same thing in SwiftUI using UIViewRepresentable, but toolPicker doesn't show so I checked isFirstResponder property and I found that it was still false after I called canvas.becomeFirstResponder(). Check this out: struct NoteCanvasView: UIViewRepresentable {     func makeUIView(context: Context) -> PKCanvasView {         let canvas = PKCanvasView()         canvas.drawingPolicy = .anyInput         canvas.delegate = context.coordinator.self                  let toolPicker = PKToolPicker()         toolPicker.setVisible(true, forFirstResponder: canvas)         toolPicker.addObserver(canvas)         print(canvas.canBecomeFirstResponder)         canvas.becomeFirstResponder()         print(canvas.isFirstResponder)         return canvas     }          func updateUIView(_ canvas: PKCanvasView, context: Context) {         canvas.becomeFirstResponder()     }          func makeCoordinator() -> Coordinator {         Coordinator(self)     }          class Coordinator: NSObject {         var parent: NoteCanvasView         init(_ parent: NoteCanvasView) {             self.parent = parent         }     } } I found canvas.canBecomeFirstResponder returns true and canvas.isFirstResponder always returns false. Is this a bug in current version of SwiftUI??

In the session, I have seen a lot of examples of rainbow effects and I'd like to bring it into my app written by SwiftUI, but one thing missing is that I'm not sure how to implement customizable markdown analysis and how to set the style for it. Please help me, maybe give me some ideas? or just some suggestions.