Core Spotlight

README.md

See https://developer.apple.com/documentation/foundation/task_management/increasing_app_usage_with_suggestions_based_on_user_activities

CoreSpotlight.swift

import CoreSpotlight
import Foundation
#if canImport(UniformTypeIdentifiers)
import UniformTypeIdentifiers
#endif
import MobileCoreServices

struct ShopIndexHandler {
    static let `default` : ShopIndexHandler = .init()

    private let spotlight: CSSearchableIndex = .default()

    private init() {}

    static func add(shop: ShopSummary) {
        let attributeSet: CSSearchableItemAttributeSet = {
            if #available(iOS 14.0, *) {
                return CSSearchableItemAttributeSet(contentType: .text)
            } else {
                return CSSearchableItemAttributeSet(itemContentType: kUTTypeText as String)
            }
        }()
        attributeSet.title = shop.brand.name + " " + shop.name

        if let imageUrl = shop.imageUrls.first {
            attributeSet.thumbnailURL = URL(string: imageUrl)
        }
        attributeSet.latitude = NSNumber(value: shop.latitude)
        attributeSet.longitude = NSNumber(value: shop.longitude)
        attributeSet.contentDescription = shop.scheduleText

        let item = CSSearchableItem(uniqueIdentifier: "\(shop.id)", domainIdentifier: nil, attributeSet: attributeSet)

        CSSearchableIndex.default().indexSearchableItems([item]) { error in
            if let error = error {
                print(error.localizedDescription)
            } else {
                print("Shop indexed.")
            }
        }
    }
}

SceneDelegate.swift

final class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    func scene(_ scene: UIScene, continue userActivity: NSUserActivity) {
        if let uniqueIdentifier = userActivity.userInfo?[CSSearchableItemActivityIdentifier] as? String {
          // Handle unique identifier
        }
    }
}