So far, I’ve followed everything explained in this video -> https://www.youtube.com/watch?v=rqo1w0d5i7w. After that, I created another widget in Xcode and added it to a new group. Unfortunately, that didn’t work.

Additionally, I made sure that the Runner is associated with both groups. However, when I try to add another widget on my iPhone’s home screen, the second widget I created in Xcode doesn’t appear.

Of course, I did get a successful build in Xcode.

This is my Flutter Code:

class HomePage extends StatefulWidget {
  const HomePage ({super.key});

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  String appGroupId = 'group.bird_clock';
  String iOSWidgetName = 'bird_clock_app_group';

  String appGroupId_1 = 'group.bird_clock_app_minutes';
  String iOSWidgetName_1 = 'bird_clock_app_minutes_group';

  updateWidgetFun() {
    HomeWidget.saveWidgetData<String>('title', 'Flutter');
    HomeWidget.saveWidgetData<String>('description', 'App development');
    HomeWidget.updateWidget(iOSName: iOSWidgetName);

    HomeWidget.saveWidgetData<String>('title', 'Flutter_1');
    HomeWidget.saveWidgetData<String>('description', 'App development_1');
    HomeWidget.updateWidget(iOSName: iOSWidgetName_1);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Bird Clock Test'),
        backgroundColor: Colors.deepPurple.withOpacity(0.4),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: () => updateWidgetFun(),
          child: const Text('Update'),
        ),
      ),
    );
  }
}

XCode
1 Widget:

import WidgetKit
import SwiftUI

private let widgetGroupId = "group.bird_clock_app_group"

struct Provider: TimelineProvider {
    func placeholder(in context: Context) -> SimpleEntry {
        SimpleEntry(date: Date(), emoji: "😀", title: "Placeholder Title", description: "Placeholder Message")
    }

    func getSnapshot(in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let data = UserDefaults.init(suiteName: widgetGroupId)
        let entry = SimpleEntry(date: Date(), emoji: "😀", title: "Placeholder Title", description: "Placeholder Message")
        
        completion(entry)
    }

    func getTimeline(in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
        getSnapshot(in: context) { (entry) in
            let timeline = Timeline(entries: [entry], policy: .atEnd)
            completion(timeline)
         }
    }
}

struct SimpleEntry: TimelineEntry {
    let date: Date
    let emoji: String
    let title: String
    let description: String
}

struct bird_clockEntryView : View {
    var entry: Provider.Entry

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

struct bird_clock: Widget {
    let kind: String = "bird_clock"

    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: Provider()) { entry in
            if #available(iOS 17.0, *) {
                bird_clockEntryView(entry: entry)
                    .containerBackground(.fill.tertiary, for: .widget)
            } else {
                bird_clockEntryView(entry: entry)
                    .padding()
                    .background()
            }
        }
        .configurationDisplayName("My Widget")
        .description("This is an example widget.")
    }
}

#Preview(as: .systemSmall) {
    bird_clock()
} timeline: {
    SimpleEntry(date: .now, emoji: "😀", title: "Placeholder Title", description: "Placeholder Message")
    SimpleEntry(date: .now, emoji: "🤩", title: "Placeholder Title", description: "Placeholder Message")
}

2 Widget:

import WidgetKit
import SwiftUI

private let widgetGroupId = "bird_clock_app_minutes_group"

struct Provider: TimelineProvider {
    func placeholder(in context: Context) -> SimpleEntry {
        SimpleEntry(date: Date(), emoji: "😀", title: "Placeholder Title", description: "Placeholder Message")
    }

    func getSnapshot(in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let data = UserDefaults.init(suiteName: widgetGroupId)
        let entry = SimpleEntry(date: Date(), emoji: "😀", title: "Placeholder Title", description: "Placeholder Message")
        
        completion(entry)
    }

    func getTimeline(in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
        getSnapshot(in: context) { (entry) in
            let timeline = Timeline(entries: [entry], policy: .atEnd)
            completion(timeline)
         }
    }
}

struct SimpleEntry: TimelineEntry {
    let date: Date
    let emoji: String
    let title: String
    let description: String
}

struct bird_clock_app_minutesEntryView : View {
    var entry: Provider.Entry

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

struct bird_clock_app_minutes: Widget {
    let kind: String = "bird_clock_app_minutes"

    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: Provider()) { entry in
            if #available(iOS 17.0, *) {
                bird_clock_app_minutesEntryView(entry: entry)
                    .containerBackground(.fill.tertiary, for: .widget)
            } else {
                bird_clock_app_minutesEntryView(entry: entry)
                    .padding()
                    .background()
            }
        }
        .configurationDisplayName("My Widget")
        .description("This is an example widget.")
    }
}

#Preview(as: .systemSmall) {
    bird_clock_app_minutes()
} timeline: {
    SimpleEntry(date: .now, emoji: "😀", title: "Placeholder Title", description: "Placeholder Message")
    SimpleEntry(date: .now, emoji: "🤩", title: "Placeholder Title", description: "Placeholder Message")
}