AVCaptureSessionInterruptionReasonKey

Tells the receiver to start running.

Tells the receiver to stop running.

Indicates whether the receiver is running.

Indicates whether the receiver has been interrupted.

Posted if an error occurred during a capture session.

Posted when a capture session starts.

Posted when a capture session stops.

Posted if a capture session is interrupted.

Posted if an interruption to a capture session finishes.

Key to retrieve the error object from a AVCaptureSessionRuntimeErrorNotification user info dictionary.

The key for retrieving information about system pressure factors that caused a capture session interruption.

Constants identifying the reason a capture session was interrupted, found in an AVCaptureSessionWasInterruptedNotification user info dictionary.