UIApplicationDelegate
E770637
UIApplicationDelegate is an iOS application lifecycle protocol that defines methods for responding to app-level events such as launch, termination, and state transitions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| UIApplicationDelegate canonical | 1 |
| UISceneDelegate | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9004183 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: UIApplicationDelegate Context triple: [App protocol (SwiftUI), relatedTo, UIApplicationDelegate]
-
A.
NSObject
NSObject is the root base class in Objective-C from which most classes in Cocoa and Cocoa Touch inherit, providing fundamental object behavior such as memory management and message sending.
-
B.
UIKit
UIKit is Apple’s primary user interface framework for building and managing iOS app UIs, handling views, controls, event handling, and application infrastructure.
-
C.
NSNotificationCenter
NSNotificationCenter is a central dispatch mechanism in Objective-C/Cocoa frameworks that enables objects to broadcast and observe notifications for decoupled communication within an application.
-
D.
Apple Developer Documentation
Apple Developer Documentation is Apple’s official online resource providing comprehensive technical guides, API references, and sample code for building software across its platforms.
-
E.
Apple Push Notification service
Apple Push Notification service is Apple’s cloud-based system for delivering real-time notifications and messages to iOS, macOS, watchOS, and tvOS devices.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: UIApplicationDelegate Target entity description: UIApplicationDelegate is an iOS application lifecycle protocol that defines methods for responding to app-level events such as launch, termination, and state transitions.
-
A.
NSObject
NSObject is the root base class in Objective-C from which most classes in Cocoa and Cocoa Touch inherit, providing fundamental object behavior such as memory management and message sending.
-
B.
UIKit
UIKit is Apple’s primary user interface framework for building and managing iOS app UIs, handling views, controls, event handling, and application infrastructure.
-
C.
NSNotificationCenter
NSNotificationCenter is a central dispatch mechanism in Objective-C/Cocoa frameworks that enables objects to broadcast and observe notifications for decoupled communication within an application.
-
D.
Apple Developer Documentation
Apple Developer Documentation is Apple’s official online resource providing comprehensive technical guides, API references, and sample code for building software across its platforms.
-
E.
Apple Push Notification service
Apple Push Notification service is Apple’s cloud-based system for delivering real-time notifications and messages to iOS, macOS, watchOS, and tvOS devices.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
application lifecycle protocol
ⓘ
iOS protocol ⓘ |
| associatedType | UIApplication ⓘ |
| configuredIn |
@UIApplicationMain attribute (Swift)
ⓘ
main.m with UIApplicationMain function (Objective-C) ⓘ |
| conformsTo | NSObjectProtocol ⓘ |
| declaredInHeader |
UIKit/UIApplication.h
ⓘ
linked to:
UIKit
|
| definedIn |
UIKit framework
ⓘ
linked to:
UIKit
|
| introduced | iOS 2.0 ⓘ |
| keyMethod |
application:configurationForConnectingSceneSession:options:
ⓘ
application:continueUserActivity:restorationHandler: ⓘ application:didDiscardSceneSessions: ⓘ application:didFailToRegisterForRemoteNotificationsWithError: ⓘ application:didFinishLaunchingWithOptions: ⓘ application:didReceiveRemoteNotification:fetchCompletionHandler: ⓘ application:didRegisterForRemoteNotificationsWithDeviceToken: ⓘ application:handleEventsForBackgroundURLSession:completionHandler: ⓘ application:openURL:options: ⓘ application:performFetchWithCompletionHandler: ⓘ applicationDidBecomeActive: ⓘ applicationDidEnterBackground: ⓘ applicationWillEnterForeground: ⓘ applicationWillResignActive: ⓘ applicationWillTerminate: ⓘ |
| language |
Objective-C
ⓘ
Swift ⓘ |
| lifecyclePhase |
active
ⓘ
background ⓘ inactive ⓘ launch ⓘ termination ⓘ |
| platform |
iOS
ⓘ
iPadOS ⓘ tvOS ⓘ |
| purpose |
manage application lifecycle
ⓘ
respond to app-level events ⓘ |
| replacedPartiallyBy |
UISceneDelegate
ⓘ
linked to:
UIApplicationDelegate
|
| role |
coordinate app state transitions
ⓘ
entry point for app initialization ⓘ handle URL-based app launches ⓘ handle background URL session events ⓘ handle background fetch events ⓘ handle push notification registration callbacks ⓘ handle universal links ⓘ |
| threading | methods usually called on main thread ⓘ |
| typicalImplementationClass | AppDelegate ⓘ |
| updatedFor | iOS 13 scene-based lifecycle ⓘ |
| usedBy |
UIApplication
ⓘ
linked to:
UIKit
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: UIApplicationDelegate Description of subject: UIApplicationDelegate is an iOS application lifecycle protocol that defines methods for responding to app-level events such as launch, termination, and state transitions.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
App protocol
linked to: UIApplicationDelegate