Hello,
I am trying to get the elements from my SwiftData databse in the configuration for my widget.
The SwiftData model is the following one:
@Model
class CountdownEvent {
@Attribute(.unique) var id: UUID
var title: String
var date: Date
@Attribute(.externalStorage) var image: Data
init(id: UUID, title: String, date: Date, image: Data) {
self.id = id
self.title = title
self.date = date
self.image = image
}
}
And, so far, I have tried the following thing:
AppIntent.swift
struct ConfigurationAppIntent: WidgetConfigurationIntent {
static var title: LocalizedStringResource { "Configuration" }
static var description: IntentDescription { "This is an example widget." }
// An example configurable parameter.
@Parameter(title: "Countdown")
var countdown: CountdownEntity?
}
Countdowns.swift, this is the file with the widget view
struct Provider: AppIntentTimelineProvider {
func placeholder(in context: Context) -> SimpleEntry {
SimpleEntry(date: Date(), configuration: ConfigurationAppIntent())
}
func snapshot(for configuration: ConfigurationAppIntent, in context: Context) async -> SimpleEntry {
SimpleEntry(date: Date(), configuration: configuration)
}
func timeline(for configuration: ConfigurationAppIntent, in context: Context) async -> Timeline<SimpleEntry> {
var entries: [SimpleEntry] = []
// Generate a timeline consisting of five entries an hour apart, starting from the current date.
let currentDate = Date()
for hourOffset in 0 ..< 5 {
let entryDate = Calendar.current.date(byAdding: .hour, value: hourOffset, to: currentDate)!
let entry = SimpleEntry(date: entryDate, configuration: configuration)
entries.append(entry)
}
return Timeline(entries: entries, policy: .atEnd)
}
// func relevances() async -> WidgetRelevances<ConfigurationAppIntent> {
// // Generate a list containing the contexts this widget is relevant in.
// }
}
struct SimpleEntry: TimelineEntry {
let date: Date
let configuration: ConfigurationAppIntent
}
struct CountdownsEntryView : View {
var entry: Provider.Entry
var body: some View {
VStack {
Text("Time:")
Text(entry.date, style: .time)
Text("Title:")
Text(entry.configuration.countdown?.title ?? "Default")
}
}
}
struct Countdowns: Widget {
let kind: String = "Countdowns"
var body: some WidgetConfiguration {
AppIntentConfiguration(kind: kind, intent: ConfigurationAppIntent.self, provider: Provider()) { entry in
CountdownsEntryView(entry: entry)
.containerBackground(.fill.tertiary, for: .widget)
}
}
}
CountdownEntity.swift, the file for the AppEntity and EntityQuery structs
struct CountdownEntity: AppEntity, Identifiable {
var id: UUID
var title: String
var date: Date
var image: Data
var displayRepresentation: DisplayRepresentation {
DisplayRepresentation(title: "\(title)")
}
static var defaultQuery = CountdownQuery()
static var typeDisplayRepresentation: TypeDisplayRepresentation = "Countdown"
init(id: UUID, title: String, date: Date, image: Data) {
self.id = id
self.title = title
self.date = date
self.image = image
}
init(id: UUID, title: String, date: Date) {
self.id = id
self.title = title
self.date = date
self.image = Data()
}
init(countdown: CountdownEvent) {
self.id = countdown.id
self.title = countdown.title
self.date = countdown.date
self.image = countdown.image
}
}
struct CountdownQuery: EntityQuery {
typealias Entity = CountdownEntity
static var typeDisplayRepresentation = TypeDisplayRepresentation(name: "Countdown Event")
static var defaultQuery = CountdownQuery()
@Environment(\.modelContext) private var modelContext // Warning here: Stored property '_modelContext' of 'Sendable'-conforming struct 'CountdownQuery' has non-sendable type 'Environment<ModelContext>'; this is an error in the Swift 6 language mode
func entities(for identifiers: [UUID]) async throws -> [CountdownEntity] {
let countdownEvents = getAllEvents(modelContext: modelContext)
return countdownEvents.map { event in
return CountdownEntity(id: event.id, title: event.title, date: event.date, image: event.image)
}
}
func suggestedEntities() async throws -> [CountdownEntity] {
// Return some suggested entities or an empty array
return []
}
}
CountdownsManager.swift, this one just has the function that gets the array of countdowns
func getAllEvents(modelContext: ModelContext) -> [CountdownEvent] {
let descriptor = FetchDescriptor<CountdownEvent>()
do {
let allEvents = try modelContext.fetch(descriptor)
return allEvents
}
catch {
print("Error fetching events: \(error)")
return []
}
}
I have installed it in my phone and when I try to edit the widget, it doesn't show me any of the elements I have created in the app, just a loading dropdown for half a second:
What am I missing here?
Topic:
App & System Services
SubTopic:
Widgets & Live Activities
Tags:
SwiftUI
WidgetKit
App Intents
SwiftData