<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "tvOS: -",
    "visionOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "UIKit",
  "identifier" : "/documentation/UIKit/UIPageViewController/OptionsKey/spineLocation",
  "metadataVersion" : "0.1.0",
  "role" : "Type Property",
  "symbol" : {
    "kind" : "Type Property",
    "modules" : [
      "UIKit"
    ],
    "preciseIdentifier" : "c:@UIPageViewControllerOptionSpineLocationKey"
  },
  "title" : "spineLocation"
}
-->

# spineLocation

Location of the spine.

```
static let spineLocation: UIPageViewController.OptionsKey
```

## Discussion

For possible values, see [`UIPageViewController.SpineLocation`](/documentation/UIKit/UIPageViewController/SpineLocation-swift.enum). A spine location is only valid if the transition style is [`UIPageViewController.TransitionStyle.pageCurl`](/documentation/UIKit/UIPageViewController/TransitionStyle-swift.enum/pageCurl).

If the transition style is [`UIPageViewController.TransitionStyle.pageCurl`](/documentation/UIKit/UIPageViewController/TransitionStyle-swift.enum/pageCurl), the default value for this property is [`UIPageViewController.SpineLocation.min`](/documentation/UIKit/UIPageViewController/SpineLocation-swift.enum/min); otherwise, the default is [`UIPageViewController.SpineLocation.none`](/documentation/UIKit/UIPageViewController/SpineLocation-swift.enum/none).

---

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)