---
title: Notification dictionary keys
framework: uikit
role: collectionGroup
role_heading: API Collection
path: uikit/notification-dictionary-keys
---

# Notification dictionary keys

Handle notifications with keys in the user info dictionary.

## Topics

### Notification keys

- [announcementStringValueUserInfoKey](uikit/uiaccessibility/announcementstringvalueuserinfokey.md)
- [announcementWasSuccessfulUserInfoKey](uikit/uiaccessibility/announcementwassuccessfuluserinfokey.md)
- [focusedElementUserInfoKey](uikit/uiaccessibility/focusedelementuserinfokey.md)
- [unfocusedElementUserInfoKey](uikit/uiaccessibility/unfocusedelementuserinfokey.md)
- [assistiveTechnologyUserInfoKey](uikit/uiaccessibility/assistivetechnologyuserinfokey.md)
- [UIAccessibility.AssistiveTechnologyIdentifier](uikit/uiaccessibility/assistivetechnologyidentifier.md)

## See Also

### Notifications

- [Notification names](uikit/notification-names.md)
- [post(notification:argument:)](uikit/uiaccessibility/post(notification:argument:).md)