Why is the SwiftUI re-render the UI event if the view does not use the counter like in the example bellow...shouldn't SwiftUI framework be smart enough to detect that?? import SwiftUI class ViewModel: ObservableObject { @Published var counter: Int = 0 // Not used in the view's body @Published var displayText: String = "Hello" // Used in the view's body } struct ContentView: View { @StateObject private var viewModel = ViewModel() var body: some View { VStack { Text(viewModel.displayText) // Depends on displayText } .onChange(of: viewModel.counter) { newValue in print("Counter changed to: \(newValue)") } } } Is there any solution more elegant without using Publishers??

I have a macOS application developed in SwiftUI. It's a document-based application. I know how to hide the Show Tab Bar command under View. I don't want to hide it. I always want to show tabs. I wonder how to enable this command programmatically such that the document window always has the + button to the right. Thanks.

In keyboard shortcuts this buttons at the bottom are overlappin. Any one else?

For an iOS app that runs in both child and parent mode across iOS devices. On the child device, with Family Controls enabled using .child permissions via AuthorizationCenter.requestAuthorization(for: .child). Is any way to display a list of recently used apps by the child on the parent (guardian) device, in a privacy-preserving and Apple-compliant way?

Hi! I'm building an app that uses Swift Charts to visualize stock market data, and I'm encountering a couple of issues. The stock API I’m using provides data only for the trading days when the market is open. The problem is that I need to skip over the missing dates (non-trading days) in the chart, but still keep the x-axis formatted correctly (e.g., group ticks by month). If I convert the dates to String to handle missing data, I lose the correct x-axis formatting, and the date labels become inaccurate among with its data. Here’s som of the code I’m using for parsing the dates and structuring the data: struct StockDataPoint: Identifiable, Decodable { var id: String { datetime } let datetime: String let close: String var date: Date { datetime.toDate() ?? Date() } var closePrice: Double { Double(close) ?? 0.0 } } extension String { func toDate() -> Date? { let formatter = DateFormatter() formatter.locale = Locale(identifier: "en_US_POSIX") formatter.timeZone = TimeZone(abbreviation: "UTC") formatter.dateFormat = self.count == 10 ? "yyyy-MM-dd" : "yyyy-MM-dd HH:mm:ss" return formatter.date(from: self) } } And: LineMark( x: .value("Datum", point.date), y: .value("Pris", point.closePrice) ) .interpolationMethod(.cardinal) .lineStyle(StrokeStyle(lineWidth: 0.7)) .foregroundStyle(.linearGradient(colors: [.blue, .yellow, .orange], startPoint: .bottomTrailing, endPoint: .topLeading)) .frame(height: 300) .background(Color.black.opacity(0.6)) .chartYScale( domain: ( (stockAPI.stockData.map { $0.closePrice }.min() ?? 0) * 0.98 ... (stockAPI.stockData.map { $0.closePrice }.max() ?? 100) * 1.02 ) ) .chartXAxis { AxisMarks(values: .automatic(desiredCount: 5)) { value in AxisGridLine().foregroundStyle(Color.gray.opacity(0.5)) AxisTick().foregroundStyle(Color.gray) AxisValueLabel().foregroundStyle(Color.gray) } } .chartYAxis { AxisMarks(values: .automatic(desiredCount: 5)) { value in AxisGridLine().foregroundStyle(Color.gray.opacity(0.5)) AxisTick().foregroundStyle(Color.gray) AxisValueLabel().foregroundStyle(Color.gray) } } What I need help with: Skipping missing dates on the x-axis and show correct data for corresponding days. Keeping the x-axis well formatted (grouped by month, accurate labels). Thanks in advance for any suggestions!

In one of my apps I use an app group to share data between the app and a command line tool. This works as expected. The app also contains a Dock Tile plugin and I wonder if there's a way to access the group container from this plugin? Thanks in advance for your help. Best regards, Marc

Hello, I am wondering if it is possible to have a Line Mark with different line styles. I am trying to create a Line Mark where part of the line is solid and another part of the line is dashed. Even with a conditional it only displays one or the other. Is it currently possible in SwiftCharts to do something like the attached image? Thank you.

I'm trying to create a .pkg installer with productbuild/pkgbuild. But I'd also like to add my custom installer plugin to this. I'm using the following script. I'd like to add my bundle into this script. Since there are no official docs from apple how to do this nor there are a lot of updated resources, here are some things I have tried. adding the following line to Distrubtion.xml <bundle id="pluginid" path="path/to/myplugin.bundle"/> adding component tag to pkgbuild also doesn't do anything --component "path/to/myplugin.bundle" The bundle itself is build with XCode - it is a simple UI for user to type some input in Apple provides documentation for Distribution.xml file, which supports different UI elements but doesn't support text input - docs I have been also looking at this tutorial , it is very outdated but i could still fit it to my needs except the part where the .bundle file needs to be inserted into .pkg. Note - there is no option to view the contents of .pkg file build with pkbuild/productbuild How can i do this process correctly? I would like to link my installer pane plugin to a generic .pkg(with licenses and so on). I'd appreciate any kind of help!

I'm trying to make a Swift Chart where 24 AreaMarks an hour apart on X axis over a day display a vertical gradient. The gradient is vertical and is essentially [Color.opacity(0.1),Colour,Color.opacity(0.1] The idea here is where the upper and lower points of each AreaMark are the same or close to each other in the Y axis, the chart essentially displays a line, where they are far apart you get a nice fading vertical gradient. However, it seems that the .alignsMarkStylesWithPlotArea modifier is always set for AreaMarks even if manually applying it false. Investigating further, I've learnt that with AreaMarks in a series, Swift Charts seems to only listen to the first foreground style set in. I've created some sample code to demonstrate this. struct DemoChartView: View { var body: some View { Chart { AreaMark(x: .value("Time", Date().addingTimeInterval(0)), yStart: .value("1", 40), yEnd: .value("2", 60)) .foregroundStyle(LinearGradient(colors: [.pink, .teal], startPoint: .top, endPoint: .bottom)) .alignsMarkStylesWithPlotArea(false) AreaMark(x: .value("Time", Date().addingTimeInterval(3600)), yStart: .value("1", 44), yEnd: .value("2", 58)) .foregroundStyle(LinearGradient(colors: [.orange, .yellow], startPoint: .top, endPoint: .bottom)) .alignsMarkStylesWithPlotArea(false) AreaMark(x: .value("Time", Date().addingTimeInterval(03600*2)), yStart: .value("1", 50), yEnd: .value("2", 90)) .foregroundStyle(LinearGradient(colors: [.green, .blue], startPoint: .top, endPoint: .bottom)) .alignsMarkStylesWithPlotArea(false) } } } Which produces this: So here, all the different .foregroundStyle LinearGradients are being ignored AND the .alignsMarkStylesWithPlotArea(false) is also ignored - the amount of pink on the first mark is different to the second and third 🤷‍♂️ Has anyone encountered this. Are AreaMarks the correct choice or are they just not setup to create this type of data display. Thanks

I first applied a snapshot on the main thread like this: var snapshot = NSDiffableDataSourceSnapshot<Section, MessageViewModel>() snapshot.appendSections([.main]) snapshot.appendItems([], toSection: .main) dataSource.applySnapshotUsingReloadData(snapshot) After loading data, I applied the snapshot again using: Task { @MainActor in await dataSource.applySnapshotUsingReloadData(snapshot) } On an iPhone 13 mini, I received the following warning: Warning: applying updates in a non-thread confined manner is dangerous and can lead to deadlocks. Please always submit updates either always on the main queue or always off the main queue However, this warning did not appear when I ran the same code on an iPhone 16 Pro simulator. Can anyone explain it to me? Thank you

How to achieve the same navigation bar style as in the Design foundations from idea to interface - WWDC25 video? Screenshot: https://imgur.com/a/huzsm1H There's no new navigationBarTitleDisplayMode that has action buttons aligned with the title.

I need to check the network connection with NWPathMonitor. import Foundation import Network class NetworkViewModel: ObservableObject { let monitor = NWPathMonitor() let queue = DispatchQueue(label: "NetworkViewModel") @Published var isConnected = false var connectionDescription: String { if isConnected { return "You are connected." } else { return "You are NOT connected." } } init() { monitor.pathUpdateHandler = { path in DispatchQueue.main.async { self.isConnected = path.status == .satisfied } } monitor.start(queue: queue) } } import SwiftUI struct ContentView: View { @StateObject private var networkViewModel = NetworkViewModel() var body: some View { VStack { } .onAppear { if networkViewModel.isConnected { print("You are connected.") } else { print("You are NOT connected.") } } } } So there is nothing special, not at all. Yet, if I test it with a totally new Xcode project for iOS, it fails and return !isConnected. I've tested it with a macOS application. And it fails. I've tested it with an actual device. It fails. I've tested it with an old project. It still does work. I have no mere idea why new Xcode projects all fail to detect the WiFi connection. This is a total nightmare. Does anybody have a clue? thanks.

I would like to have different fill colors in my chart. What I want to achieve is that if the values drop below 0 the fill color should be red. If they are above the fill color should be red. My code looks as follows: import SwiftUI import Charts struct DataPoint: Identifiable {     let id: UUID = UUID()     let x: Int     let y: Int } struct AlternatingChartView: View {          enum Gradients {         static let greenGradient = LinearGradient(gradient: Gradient(colors: [.green, .white]), startPoint: .top, endPoint: .bottom)         static let blueGradient = LinearGradient(gradient: Gradient(colors: [.white, .blue]), startPoint: .top, endPoint: .bottom)     }          let data: [DataPoint] = [         DataPoint(x: 1, y: 10),         DataPoint(x: 2, y: -5),         DataPoint(x: 3, y: 20),         DataPoint(x: 4, y: -8),         DataPoint(x: 5, y: 15),     ]               var body: some View {         Chart {             ForEach(data) { data in                 AreaMark(                     x: .value("Data Point", data.x),                     y: .value("amount", data.y))                 .interpolationMethod(.catmullRom)                 .foregroundStyle(data.y < 0 ? Color.red : Color.green)                                  LineMark(                 x: .value("Data Point", data.x),                 y: .value("amount", data.y))                 .interpolationMethod(.catmullRom)                 .foregroundStyle(Color.black)                 .lineStyle(StrokeStyle.init(lineWidth: 4))                              }         }         .frame(height: 200)     } } #Preview {     AlternatingChartView() } The result looks like this: I also tried using foregroundStyle(by:) and chartForegroundStyleScale(_:) but the result was, that two separate areas had been drawn. One for the below and one for the above zero datapoints. So, what would be the right approach to have two different fill colors?

I'm running into a crash when trying to delete an item from a list that's loaded using SwiftData. The app works fine when selecting or displaying the data, but the moment I confirm a deletion, it crashes with this error: SwiftData/ModelSnapshot.swift:46: Fatal error: A ModelSnapshot must be initialized with a known-keys dictionary This happens right after I delete an item from the list using modelContext.delete(). I’ve double-checked that the item exists and is valid, and I'm not sure what I'm doing wrong. The data is loaded using @Query and everything seems normal until deletion. For further information, I have tried this on a new IOS project where I have one super Model class with a cascading relationship on a child class. When trying to delete the parent class while connected to one or more children, it still gives me the error. The same thing is happening with my original project. Class A has a relationship (cascading) with Class B. Attempting to delete Class A while there are relationships with Class B throws this error. If anyone has experienced this or knows what causes it, please let me know. I’m not even sure where to start debugging this one. Thanks in advance!

I'm working on a catalyst video editor and I'm using my wacom graphic tablet to work. The wacom input gets translated into a pencil touch. Whenever I hold down a modifier (shift, cmd etc) the touch gets ended and also ends all gestures. The mouse (indirectPointer touch) doesn't exhibit this kind of behavior. Is this expected behavior? If so is there a way to opt out? Any way to prevent this? This basically makes the typical transform gestures impossible to do when using the graphic tablet.

The badge is cut if it's assigned to the last item. Is it a known issue? Thank you.

I am attempting to start my application on iOS 26 with Xcode 26. It uses an UISplitViewController that is instantiated through a Storyboard. It uses the "Unspecified" style, which is a holdover from a previous version of iOS. I'm not sure if this is a bug in iOS, or if I am supposed to change it now. The viewControllers property only has the primary view controller on iOS, although it has the primary and detail view controllers on iPadOS. When I start the application on iOS 18.5, it has both primary and detail controllers on both platforms.

I am currently developing an AR experience using ARKit with SceneKit and am looking to implement functionality that enables: Zooming into the AR camera feed, ideally leveraging the ultra-wide or telephoto lenses available on supported devices. Macro-style focus capabilities, allowing users to view and interact with virtual content closely aligned with small or nearby real-world objects (within a few centimeters). My objective is to ensure that ARKit continues to render the scene accurately while enabling a zoomed-in view or macro-level focus for better detail visibility and alignment. Could you please advise on: Whether ARKit currently supports camera zoom or allows access to macro or ultra-wide cameras within an ARSession. Limitations or considerations when using multi-camera setups in conjunction with ARKit. Any guidance or references to documentation or sample code would be greatly appreciated. Best regards, Ayush

Hi, I can't get onScrollPhaseChange to fire when using a List. It works as expected when using a ScollView and LazyVStack. Interestingly, onScrollGeometryChange gets called as expected for both List and ScrollView. Has anyone successfully used onScrollPhaseChange with a List?

Hi, I'm embedding the QLPreviewController in a UIViewControllerRepresentable. When I view .usdz models I don't see the AR/Object selector at the top, nor the sharing button. I have tried presenting modally with a .sheet modifier and had the same result. What do I need to do to get the controls? Thanks, code attached. Code Spiff