---
title: AudioAccessoryHeadTracking.Handler
framework: AudioAccessoryKit
role: symbol
role_heading: Protocol
platforms: [iOS 27.0+]
path: audioaccessorykit/audioaccessoryheadtracking/handler
---

# AudioAccessoryHeadTracking.Handler

## Declaration

```swift
protocol Handler : Sendable
```

## Topics

### Instance Methods

- [activate(for:)](audioaccessorykit/audioaccessoryheadtracking/handler/activate(for:).md)
- [handleAccessorySensorMessage(_:)](audioaccessorykit/audioaccessoryheadtracking/handler/handleaccessorysensormessage(_:).md)
- [headTrackingStateDidChange(isActive:)](audioaccessorykit/audioaccessoryheadtracking/handler/headtrackingstatedidchange(isactive:).md)
- [invalidate()](audioaccessorykit/audioaccessoryheadtracking/handler/invalidate().md)

## Relationships

### Inherits From

- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)