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SwiftData updates delay in widget
My SwiftData model doesn't have time to update, and the widget gets old data on the timeline I create simple SwiftData app with widget extension. To share swiftdata between widget and app I use the same approach as in sample code "Adopting SwiftData for a Core Data app": let modelContext = ModelContext(DataModel.shared.modelContainer) if let models = try? modelContext.fetch(fetchDescriptor) { // use } After I create/delete/updated model I call: WidgetCenter.shared.reloadAllTimelines() The problem is that the widget receives outdated data as a result of modelContext.fetch. To get the new data I need to call WidgetCenter.shared.reloadAllTimelines() twice or with some delay: // MyModelEditorView private func save() { if let myModel { myModel.title = title } else { let myModel = MyModel( title: title ) modelContext.insert(word) } WidgetCenter.shared.reloadAllTimelines() // i have to call it twice WidgetCenter.shared.reloadAllTimelines() } I couldn't test SampleCode for similar update behavior, because somehow I couldn't get the models into the widget and I only have "No Trip" displayed there. If I remove the second call, the UI is updated immediately and the new title is displayed, but the widget in the timeline receive the old title. I don't understand whether this is the case and I need to update the widget with a delay or am I doing something wrong? BTW: Why is sample code in init we don't use shared container? private let modelContainer: ModelContainer init() { do { // why we don't use DataModel.shared.modelContainer modelContainer = try ModelContainer(for: Trip.self) } catch { fatalError("Failed to create the model container: \(error)") } }
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Jul ’24