import WidgetKit
import SwiftUI

private let widgetGroupdId = "group.home_widget"

extension View {
    func widgetBackground(_ backgroundView: some View) -> some View {
        if #available(iOSApplicationExtension 17.0, *) {
            return containerBackground(for: .widget) {
                backgroundView
            }
        } else {
            return background(backgroundView)
        }
    }
}


struct Provider: TimelineProvider {
    func placeholder(in context: Context) -> SimpleEntry {
        SimpleEntry(date: Date(), city: "PlaceHolder", temperature: "2°", weatherDescription: "Bulutlu", feelsLikeTemperature: "0°")
    }
    
    func getSnapshot(in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let entry: SimpleEntry
        if context.isPreview{
          entry = placeholder(in: context)
        }
        else{
           
          let userDefaults = UserDefaults(suiteName: widgetGroupdId)
          let city = userDefaults?.string(forKey: "city") ?? "Tirana"
            print("City from UserDefaults: (city)")              
            if let city = userDefaults?.string(forKey: "city") {
                print("City from UserDefaults in main app: (city)")
            } else {
                print("City not found in UserDefaults")
            }

            
          entry = SimpleEntry(date: Date(), city: city, temperature: "2°", weatherDescription: "Bulutlu", feelsLikeTemperature: "0°")
        }
          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 city: String
        let temperature: String
        let weatherDescription: String
        let feelsLikeTemperature: String
    }
    
  
        


    struct meteo_home_widget_Previews: PreviewProvider {
        static var previews: some View {
            meteo_home_widgetEntryView(entry: SimpleEntry(date: Date(),city: "Example city", temperature: "2°", weatherDescription: "Buludlu", feelsLikeTemperature: "0°"))
                .previewContext(WidgetPreviewContext(family: .systemSmall))
            
        }
    }
}
@main
    struct meteo_home_widget: Widget {
        let kind: String = "meteo_home_widget"
        var body: some WidgetConfiguration {
            StaticConfiguration(kind: kind, provider: Provider()) { entry in
                meteo_home_widgetEntryView(entry: entry)
            }
            .configurationDisplayName ("My Widget")
            .description("This is an example widget.")
            .contentMarginsDisabled()
            
        }
    }
    
struct meteo_home_widgetEntryView : View {
    var entry: Provider.Entry
  
    var body: some View {
        VStack(alignment: .leading) {
            HStack {
                Image("navigation")
                    .foregroundColor(Color.white)
                Spacer().frame(width: 5)
                Text(entry.city).foregroundColor(.white).font(Font.system(size: 18))
                       }
            
        }
        .widgetBackground( Image("cloud")
            .resizable()
            .aspectRatio(contentMode: .fill )
            
            
        )
        .contentMargins(0)
        .padding(0)
        
      
    }
}

Here in UserDefaults I don’t get city, however in my Flutter app I update this info. I initialize home widget at main dart, and then

HomeWidget.saveWidgetData<String>(
      'city',
      city,
    );

update my city.

In android everything works perfect. I get data. But in iOS there is some problem. I think the problem is with swift code. Thank you in advance for help.