How do I update data in my Widget … | Apple Developer Forums

How do I update data in my Widget when shared Core Data Container is updated?

Hi, I have a shared Core Data Container between my app and widget. Both have the same app group enabled. I am using data in my widget that accesses data from Core Data and one single image in FileManager.

In UIApplication.willResignActiveNotification I reload the timeline of my widget and if I make changes to the "one" single image in my FileManager it is immediately reflected in the updated Widget. But I cant figure out how to fetch updated data from my timeline in the widget from Core Data. I can initially load the data from CD using:

Code Block struct Provider: TimelineProvider {
  var managedObjectContext : NSManagedObjectContext
  var items: [Item] = []
   
  init(context : NSManagedObjectContext) {
    self.managedObjectContext = context
    let fetchRequest = NSFetchRequest<Item>(entityName: "Item")
    fetchRequest.sortDescriptors = [NSSortDescriptor(keyPath: \Item.checked, ascending: true), NSSortDescriptor(keyPath: \Item.timestamp, ascending: false)]
    do {
      items = try managedObjectContext.fetch(fetchRequest)
      if items.count == 0 {
      }
    } catch let error as NSError {
      print("Could not fetch: \(error)")
    }
		backgroundImageURL = getDocumentsDirectory().appendingPathComponent("background.png")
	}
...
}

Code Block
struct Provider: TimelineProvider {
var managedObjectContext : NSManagedObjectContext
var items: [Item] = []

init(context : NSManagedObjectContext) {
self.managedObjectContext = context
let fetchRequest = NSFetchRequest<Item>(entityName: "Item")
fetchRequest.sortDescriptors = [NSSortDescriptor(keyPath: \Item.checked, ascending: true), NSSortDescriptor(keyPath: \Item.timestamp, ascending: false)]
do {
items = try managedObjectContext.fetch(fetchRequest)
if items.count == 0 {
}
} catch let error as NSError {
print("Could not fetch: \(error)")
}
backgroundImageURL = getDocumentsDirectory().appendingPathComponent("background.png")
}
...
}

But how do I update "items" in

Code Block getTimeline(in context: Context, completion: @escaping (Timeline<Entry>) -> ())