When showing an ImageDownloader actor, the presenter said a solution on avoiding duplicate downloads is shown with the code associated with this video. When will this code be available? I don't see it on the video page.

When using a UIHostingController to host my SwiftUI content, I can't get the navigation title to start large and shift to inline as the user scrolls. Is this a known problem with using the UIHostingController? var viewModel: DashboardViewModel! lazy var contentView = UIHostingController(rootView: DashboardView(viewModel: viewModel)) override func viewDidLoad() { super.viewDidLoad() addChild(contentView) view.addSubview(contentView.view) setupConstraints() navigationItem.title = "Test Title" navigationItem.largeTitleDisplayMode = .automatic } The title in the navigation controller shows inline

I want to add SwiftUI to an existing package. Super simple to get started. It previews with Xcode 15.4, but gives an error on Xcode 16.0: JITError: Runtime linking failure Anyone have an idea on what may be failing? Full SwiftUI code: import SwiftUI struct Dashboard: View { var body: some View { Text("hello") } } #Preview { Dashboard() }

Is it possible to do Swift Data operations on a background processing event?

I have a SwiftUI view that is being passed a binding from a parent view. I would like to preview the subview, but can't. I tried .constant and a @Model object directly. Both ways crash the preview. Any idea on how I can get this to work properly? @Model class FamilyMember: Identifiable { @Attribute(.unique) var id: String { name } var name = "" init(name: String = "") { self.name = name } } struct MemberView: View { @Bindable var member: FamilyMember var body: some View { Text(member.name) } } #Preview { MemberView(member: FamilyMember(name: "Family member")) } #Preview { MemberView(member: .constant(FamilyMember(name: "Family member"))) }

I have a project with a single asset image. In the dependency package, I am attempting to preview using the image in the project using Bundle.main. I just get a blank. How can I get this to work? Sample project here: https://github.com/AaronBratcher/SwiftUIPreviewProblem

I'm trying to swap out the rootViewController in my appDelegate with an animation and it is just flashing to the new viewController without any animation.-(void)showRootController:(UIViewController *)controller { [UIView transitionWithView:self.window duration:0.5 options:UIViewAnimationOptionTransitionCrossDissolve animations:^{ self.window.rootViewController = controller; [self.window makeKeyAndVisible]; } completion:nil]; }How can I do this with an animation? (Testing on an iPhone 5s with iOS 8)

I created a new Package with Xcode and incorporated a dependency, however when I try to use it, I get a "No such module" error. How do I use the dependency in the Package sources? In a normal project, I can easily import and use AgileDB. Here's the Package: // The swift-tools-version declares the minimum version of Swift required to build this package. import PackageDescription let package = Package(     name: "DBCore",     products: [         // Products define the executables and libraries a package produces, and make them visible to other packages.         .library(             name: "DBCore",             targets: ["DBCore"]),     ],     dependencies: [   .package(url: "https://github.com/AaronBratcher/AgileDB", from: "6.4.0")     ],     targets: [         // Targets are the basic building blocks of a package. A target can define a module or a test suite.         // Targets can depend on other targets in this package, and on products in packages this package depends on.         .target(             name: "DBCore",             dependencies: []),         .testTarget(             name: "DBCoreTests",             dependencies: ["DBCore"]),     ] ) Perhaps the AgileDB package as a dependency in the target? I tried copying that and it won't recognize it.

On my M1 mac, using Xcode 13.3, I created a package and displayed the code coverage bar (Editor menu –> Code Coverage). After running tests, there is no indication of code coverage at all in the source code. How do I get code coverage when testing a package?

Create new SwiftUI project Replace ContentView with the code below Tap either link. Both views are pushed onto the nav stack class ContentViewModel: ObservableObject { @Published var navigationPath = NavigationPath() } struct ContentView: View { @StateObject var viewModel = ContentViewModel() var body: some View { NavigationStack(path: $viewModel.navigationPath) { Form { Section { VStack { NavigationLink(value: 1) { Text("Location") } NavigationLink(value: 2) { Text("Category") } } } }.navigationDestination(for: Int.self) { route in switch route { case 1: Text("Location") case 2: Text("Category") default: Text("Unknown") } }.navigationTitle("Home") } } } What am I doing wrong? I would only expect the tapped item to be pushed into the stack.

Given a simple class: final class Person { name: String age: Int } How can I get aggregated data such as average age, or count of people within specific ranges without retrieving all the data and doing the aggregates myself?

I have a view with @Bindable property. (It's a model) I can use TextField("Name", text: $chore.name), but not Picker(selection: $chore.choreFrequency, label: EmptyView()) The auto-complete doesn't even show choreFrequency as an option enum ChoreFrequency: String, CaseIterable, Identifiable, Codable { case daily, weekly, monthly, seasonal var id: ChoreFrequency { self } } @Model class Chore: Identifiable { @Attribute(.unique) var id = UUID() var name: String var frequency: ChoreFrequency var assignedTo: FamilyMember var isComplete: Bool var dueDate: Date } Can I not use the Bindable property in the Picker?

I have this in my code and it works, however if I have a long list it gets tiresome. Is there a better way of having an enum with associated values that also conforms to RawRepresentable? public enum IconColor { case regular case error case warning case success case custom(String) public var value: Color { return loadColor(self.rawValue) } } extension IconColor: RawRepresentable { public var rawValue: String { switch self { case .regular: return "icon_regular" case .error: return "icon_error" case .warning: return "icon_warning" case .success: return "icon_success" case .custom(let value): return value } } public init(rawValue: String) { switch rawValue { case "icon_regular": self = .regular case "icon_error": self = .error case "icon_warning": self = .warning case "icon_success": self = .success default: self = .custom(rawValue) } } }

I have a custom EnvironmentVariable called analyticsData. On the button tap, I want to perform my button's action and then call a method to send this data. struct PrimaryButton: View { @Environment(\.analyticsData) private var analyticsData private let title: String private let action: (() -> Void) init(_ title: String, action: @escaping (() -> Void)) { self.title = title self.action = action } var body: some View { Button(action: handleTap) { Text(title) } } func handleTap() { action() // need updated value of analyticsData here! AnalyticsProxy.shared.sendAnalytics(analyticsData) } } At the point of use for this PrimaryButton, I would like to update my data dynamically. However, tapping between my 2 buttons, the data is 1 click behind. button 1 tapped, analytics output: buttonTapped = "" button 2 tapped, analytics output: buttonTapped = "B1" button 1 tapped, analytics output: buttonTapped = "B2" In my PrimaryButton handleTap method (above), I need to get the updated value of the environmentVariable before sending the analytics. Is this possible? Point of use: struct ContentView: View { @State var buttonTapped = "" var body: some View { VStack(spacing: 64) { PrimaryButton("Button 1") { buttonTapped = "B1" }.analytics(type: .event, name: "Button Tap", data: ["Button": buttonTapped]) PrimaryButton("Button 2") { buttonTapped = "B2" }.analytics(type: .event, name: "Button Tap", data: ["Button": buttonTapped]) } } }

I have my animation for the rotation working beautifully, but the image is also moving vertically. Why? struct SyncView: View { @State var isSyncing = false let animation: Animation = Animation.linear(duration: 2.0).repeatForever(autoreverses: false) var body: some View { VStack(spacing: 16) { HStack { VStack(alignment: .leading) { Text("Linked Device's Name") Text("Updating (Last update: Oct 1, 2022)") .font(.callout) .foregroundColor(.gray) } Spacer() Text(Image(systemName: "arrow.triangle.2.circlepath")) .foregroundStyle(Color.yellow) .font(.title) .rotationEffect(Angle.degrees(isSyncing ? 360 : 0)) .animation(animation, value: isSyncing) } } .padding() .onAppear { isSyncing = true } } }