<!--
{
  "availability" : [
    "iOS: 17.0.0 -",
    "iPadOS: 17.0.0 -",
    "macCatalyst: 17.0.0 -",
    "macOS: 14.0.0 -",
    "tvOS: 17.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Accessibility",
  "identifier" : "/documentation/Accessibility/AccessibilityNotification",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "Accessibility"
    ],
    "preciseIdentifier" : "s:13Accessibility0A12NotificationO"
  },
  "title" : "AccessibilityNotification"
}
-->

# AccessibilityNotification

Types of accessibility notifications that an app can post.

```
enum AccessibilityNotification
```

## Overview

Accessibility notifications provide a unified, multiplatform way for your app to
convey information to someone using an assistive app. Your app can post these types
of notifications:

- *Announcement* to convey an announcement to an assistive app
- *Layout change* to indicate when the layout of a screen changes
- *Screen change* to indicate when a new view appears that occupies a major portion
  of the screen
- *Page scroll* to indicate when a scroll action completes

For announcement notifications, you can set a priority to specify the announcement’s
importance relative to other announcements that are in the queue for an assistive
app to speak. For more information, see [`AccessibilityNotification.Announcement`](/documentation/Accessibility/AccessibilityNotification/Announcement).

## Topics

### Notifications

[`AccessibilityNotification.Announcement`](/documentation/Accessibility/AccessibilityNotification/Announcement)

A notification that an app posts when it needs to convey an announcement to an assistive
app.

[`AccessibilityNotification.LayoutChanged`](/documentation/Accessibility/AccessibilityNotification/LayoutChanged)

A notification that an app posts when the layout of a screen changes.

[`AccessibilityNotification.ScreenChanged`](/documentation/Accessibility/AccessibilityNotification/ScreenChanged)

A notification that an app posts when a new view appears that occupies a major portion
of the screen.

[`AccessibilityNotification.PageScrolled`](/documentation/Accessibility/AccessibilityNotification/PageScrolled)

A notification that an app posts when a scroll action completes.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)