---
title: HKSwimmingStrokeStyle.unknown
framework: healthkit
role: symbol
role_heading: Case
path: healthkit/hkswimmingstrokestyle/unknown
---

# HKSwimmingStrokeStyle.unknown

The user’s stroke could not be determined.

## Declaration

```swift
case unknown
```

## See Also

### Strokes

- [HKSwimmingStrokeStyle.backstroke](healthkit/hkswimmingstrokestyle/backstroke.md)
- [HKSwimmingStrokeStyle.breaststroke](healthkit/hkswimmingstrokestyle/breaststroke.md)
- [HKSwimmingStrokeStyle.butterfly](healthkit/hkswimmingstrokestyle/butterfly.md)
- [HKSwimmingStrokeStyle.freestyle](healthkit/hkswimmingstrokestyle/freestyle.md)
- [HKSwimmingStrokeStyle.mixed](healthkit/hkswimmingstrokestyle/mixed.md)
- [HKSwimmingStrokeStyle.kickboard](healthkit/hkswimmingstrokestyle/kickboard.md)