Push Notifications API Reference

Comprehensive API reference for APNs HTTP/2 transport, UserNotifications framework, and push-driven features including Live Activities and broadcast push.

Quick Reference

// AppDelegate — minimal remote notification setup
class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate {
    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        UNUserNotificationCenter.current().delegate = self
        return true
    }