<!--
{
  "availability" : [
    "iOS: 9.0.0 -",
    "iPadOS: 9.0.0 -",
    "macCatalyst: 14.0.0 -",
    "tvOS: 17.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/AVCaptureSession/InterruptionReason",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "AVFoundation"
    ],
    "preciseIdentifier" : "c:@E@AVCaptureSessionInterruptionReason"
  },
  "title" : "AVCaptureSession.InterruptionReason"
}
-->

# AVCaptureSession.InterruptionReason

Constants identifying the reason a capture session was interrupted, found in an [`wasInterruptedNotification`](/documentation/AVFoundation/AVCaptureSession/wasInterruptedNotification) user info dictionary.

```
enum InterruptionReason
```

## Topics

### Constants

[`AVCaptureSession.InterruptionReason.videoDeviceNotAvailableInBackground`](/documentation/AVFoundation/AVCaptureSession/InterruptionReason/videoDeviceNotAvailableInBackground)

An interruption caused by the app being sent to the background while using a camera.

[`AVCaptureSession.InterruptionReason.audioDeviceInUseByAnotherClient`](/documentation/AVFoundation/AVCaptureSession/InterruptionReason/audioDeviceInUseByAnotherClient)

An interruption caused by the audio hardware temporarily being made unavailable (for example, for a phone call or alarm).

[`AVCaptureSession.InterruptionReason.videoDeviceInUseByAnotherClient`](/documentation/AVFoundation/AVCaptureSession/InterruptionReason/videoDeviceInUseByAnotherClient)

An interruption caused by the video device temporarily being made unavailable (for example, when used by another capture session).

[`AVCaptureSession.InterruptionReason.videoDeviceNotAvailableWithMultipleForegroundApps`](/documentation/AVFoundation/AVCaptureSession/InterruptionReason/videoDeviceNotAvailableWithMultipleForegroundApps)

An interruption caused when your app is running in Slide Over, Split View, or Picture in Picture mode on iPad.

[`AVCaptureSession.InterruptionReason.videoDeviceNotAvailableDueToSystemPressure`](/documentation/AVFoundation/AVCaptureSession/InterruptionReason/videoDeviceNotAvailableDueToSystemPressure)

An interruption due to system pressure, such as thermal duress.

[`AVCaptureSession.InterruptionReason.sensitiveContentMitigationActivated`](/documentation/AVFoundation/AVCaptureSession/InterruptionReason/sensitiveContentMitigationActivated)

An interruption caused by a `SCVideoStreamAnalyzer` when it detects sensitive content on an associated [`AVCaptureDeviceInput`](/documentation/AVFoundation/AVCaptureDeviceInput).  To resume your capture session, call your analyzer’s `SCVideoStreamAnalyzer/continueStream` method.


---

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)