swift - SwiftUI widget not updating when @AppStorage value is changed

Question

I am trying to get a SwiftUI widget to update on command when the value of the @AppStorage changes. When I load the simulator the widget updates to the correct value from @AppStorage but does not update again no matter what I try. To display a new value in the widget, the simulator needs to be closed and reopened.

View in app:

import SwiftUI
import WidgetKit

struct MessageView: View {

    @AppStorage("message", store: UserDefaults(suiteName: "group.com.suiteName")) 
    var widgetMessage: String = ""

    var body: some View {
        VStack {
            Button(action: {
                self.widgetMessage = "new message"
                WidgetCenter.shared.reloadAllTimelines()
            }, label: { Text("button") })
        }

    }
}

Widget file:

import WidgetKit
import SwiftUI
import Intents

struct Provider: IntentTimelineProvider {
    @AppStorage("message", store: UserDefaults(suiteName: "group.com.suiteName")) 
    var widgetMessage: String = ""
    
    func placeholder(in context: Context) -> SimpleEntry {
        SimpleEntry(date: Date(), message: "Have a great day!", configuration: ConfigurationIntent())
    }

    func getSnapshot(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let entry = SimpleEntry(date: Date(), message: "Have a great day!", configuration: configuration)
        completion(entry)
    }

    func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
        let entry = SimpleEntry(date: Date(), message: widgetMessage, configuration: configuration)
        let timeline = Timeline(entries: [entry], policy: .never)
        completion(timeline)
    }
}

struct SimpleEntry: TimelineEntry {
    let date: Date
    let message: String
    let configuration: ConfigurationIntent
}

struct statusWidgetEntryView : View {
    var entry: Provider.Entry

    var body: some View {
        VStack{
            Text(entry.message)
        }
    }
}

@main
struct statusWidget: Widget {
    let kind: String = "StatusWidget"

    var body: some WidgetConfiguration {
        IntentConfiguration(
            kind: kind,
            intent: ConfigurationIntent.self,
            provider: Provider()
        ) { entry in
            statusWidgetEntryView(entry: entry)
        }
        .configurationDisplayName("Note Widget")
        .description("Display note from a friend or group")
    }
}

question from:https://stackoverflow.com/questions/65833346/swiftui-widget-not-updating-when-appstorage-value-is-changed

Answer 1

The AppStorage should be in view, everything else keep in entry

struct statusWidgetEntryView : View {
    @AppStorage("message", store: UserDefaults(suiteName: "group.com.suiteName")) 
    var widgetMessage: String = ""

    var entry: Provider.Entry

    var body: some View {
        VStack{
            Text(widgetMessage)
        }
    }
}