MathVasc

func widgetActiveDisplayModeDidChange(_ activeDisplayMode: NCWidgetDisplayMode, withMaximumSize maxSize: CGSize) {
    if activeDisplayMode == .expanded {
        //1
        preferredContentSize = CGSize(width: maxSize.width, height: maxSize.width)
    } else if activeDisplayMode == .compact {
        //2
        preferredContentSize = maxSize
    }
}

MathVasc

override func viewDidLoad() {
    super.viewDidLoad()
    // Esta linha de código diz ao widget que seu modo de exibição é do tipo expanded
    self.extensionContext?.widgetLargestAvailableDisplayMode = .expanded
}

MathVasc

import UIKit
import CoreSpotlight
import MobileCoreServices

class SLManager {
    
    
}

MathVasc

public static func setSpotLightIndexes(){
        //1
        let items = DAOItem.sharedInstance.fetchItems()
        //2
        var searchableItems = [CSSearchableItem]()
}

MathVasc

public static func setSpotLightIndexes(){
	//.
	//.
	//.

  for item in items {
      //1
      let attributeSet = CSSearchableItemAttributeSet(itemContentType: kUTTypeItem as String)
      //2
      attributeSet.keywords = ["Groceries", "Grocery", "List"]

MathVasc

public static func setSpotLightIndexes(){
//.
//.
//.
//1
CSSearchableIndex.default().indexSearchableItems(searchableItems) { (error) in
            guard error == nil else {
                print(error!.localizedDescription)
                return
            }

MathVasc

public static func setSpotLightIndexes(){
    let items = DAOItem.sharedInstance.fetchItems()
    var searchableItems = [CSSearchableItem]()

    // deletando todos os itens
    CSSearchableIndex.default().deleteAllSearchableItems { (error) in
        guard error == nil else {
            print(error!.localizedDescription)
            return
        }

MathVasc

public static func setSpotLightIndexes(){
    let items = DAOItem.sharedInstance.fetchItems()
    var searchableItems = [CSSearchableItem]()

    // deletando todos os itens
    CSSearchableIndex.default().deleteAllSearchableItems { (error) in
        guard error == nil else {
            print(error!.localizedDescription)
            return
        }

MathVasc

public static func saveContext() {
    let context = persistentContainer.viewContext
    if context.hasChanges {
        do {
            try context.save()
    // Adicione esta linha
            SLManager.setSpotLightIndexes()
        } catch {
            let nserror = error as NSError
            fatalError("Unresolved error \(nserror), \(nserror.userInfo)")

MathVasc

let button = UIButton()
button.addTarget(self, action: #selector(goToNext), for: .touchUpInside)

@objc private func goToNext() {
  ...
}