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Clarify swizzling requirement for APNs token registration in AppDelegate #1740

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Clarify swizzling requirement for APNs token registration in AppDelegate #1740

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3d57509
Clarify swizzling requirement for APNs token registration in AppDelegate
Preacher999987 Jul 30, 2025
1c40c1a
fix: Swift file formatting
Preacher999987 Jul 30, 2025
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4 changes: 3 additions & 1 deletion messaging/MessagingExampleSwift/AppDelegate.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
print("Unable to register for remote notifications: \(error.localizedDescription)")
}

// This function is added here only for debugging purposes, and can be removed if swizzling is enabled.
// NOTE: When method swizzling is enabled (default), this method must still be explicitly declared.
// Firebase Messaging uses it to intercept and register the APNs device token internally.
// If omitted, the device token will not be received.
// If swizzling is disabled then this function must be implemented so that the APNs token can be paired to
// the FCM registration token.
func application(_ application: UIApplication,
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