---
title: "splitViewControllerSupportedInterfaceOrientations(_:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uisplitviewcontrollerdelegate/splitviewcontrollersupportedinterfaceorientations(_:)"
---

# splitViewControllerSupportedInterfaceOrientations(_:)

Asks the delegate to specify the interface orientations that the split view controller supports.

## Declaration

```swift
optional func splitViewControllerSupportedInterfaceOrientations(_ splitViewController: UISplitViewController) -> UIInterfaceOrientationMask
```

## Parameters

- `splitViewController`: The split view controller.

## Return Value

Return Value The orientations that you want the specified split view controller to support. The value you return can be one or more of the UIInterfaceOrientationMask constants.

## Discussion

Discussion The split view controller calls this method to obtain the orientations that it supports. You can use this method to alter the set of orientations typically supported by a split view controller. If you don’t implement this method, the split view controller supports all orientations on iPad and all but the allButUpsideDown orientation on iPhone devices.

## See Also

### Related Documentation

- [supportedInterfaceOrientations](uikit/uiviewcontroller/supportedinterfaceorientations.md)

### Specifying the interface orientations

- [splitViewControllerPreferredInterfaceOrientationForPresentation(_:)](uikit/uisplitviewcontrollerdelegate/splitviewcontrollerpreferredinterfaceorientationforpresentation(_:).md)