---
title: UIDeviceOrientation.unknown
framework: uikit
role: symbol
role_heading: Case
path: uikit/uideviceorientation/unknown
---

# UIDeviceOrientation.unknown

The orientation of the device can’t be determined.

## Declaration

```swift
case unknown
```

## See Also

### Device orientations

- [UIDeviceOrientation.portrait](uikit/uideviceorientation/portrait.md)
- [UIDeviceOrientation.portraitUpsideDown](uikit/uideviceorientation/portraitupsidedown.md)
- [UIDeviceOrientation.landscapeLeft](uikit/uideviceorientation/landscapeleft.md)
- [UIDeviceOrientation.landscapeRight](uikit/uideviceorientation/landscaperight.md)
- [UIDeviceOrientation.faceUp](uikit/uideviceorientation/faceup.md)
- [UIDeviceOrientation.faceDown](uikit/uideviceorientation/facedown.md)