---
title: UIAccessibilityVoiceOverStatusChanged
framework: uikit
role: symbol
role_heading: Global Variable
path: uikit/uiaccessibilityvoiceoverstatuschanged
---

# UIAccessibilityVoiceOverStatusChanged

A notification that UIKit posts when VoiceOver starts or stops.

## Declaration

```swift
nonisolated let UIAccessibilityVoiceOverStatusChanged: String
```

## Discussion

Discussion This notification doesn’t include a parameter. Use this notification to customize your application’s user interface (UI) for VoiceOver users. For example, if you display a UI element that briefly overlays other parts of your UI, you can make the display persistent for VoiceOver users, but allow it to disappear as designed for users who are not using VoiceOver. You can also use the isVoiceOverRunning function to determine whether VoiceOver is currently running. Observe this notification using the default notification center.

## See Also

### VoiceOver

- [announcement](uikit/uiaccessibility/notification/announcement.md)
- [voiceOverStatusDidChangeNotification](uikit/uiaccessibility/voiceoverstatusdidchangenotification.md)
- [announcementDidFinishNotification](uikit/uiaccessibility/announcementdidfinishnotification.md)