---
title: NSSplitViewItem.CollapseBehavior.preferResizingSiblingsWithFixedSplitView
framework: appkit
role: symbol
role_heading: Case
path: appkit/nssplitviewitem/collapsebehavior-swift.enum/preferresizingsiblingswithfixedsplitview
---

# NSSplitViewItem.CollapseBehavior.preferResizingSiblingsWithFixedSplitView

The item’s preference is to resize the other split panes.

## Declaration

```swift
case preferResizingSiblingsWithFixedSplitView
```

## Discussion

Discussion The split view item breaks this preference if it can’t fully expand without causing the other split panes to resize below their minimum size threshold.

## See Also

### Constants

- [NSSplitViewItem.CollapseBehavior.default](appkit/nssplitviewitem/collapsebehavior-swift.enum/default.md)
- [NSSplitViewItem.CollapseBehavior.preferResizingSplitViewWithFixedSiblings](appkit/nssplitviewitem/collapsebehavior-swift.enum/preferresizingsplitviewwithfixedsiblings.md)
- [NSSplitViewItem.CollapseBehavior.useConstraints](appkit/nssplitviewitem/collapsebehavior-swift.enum/useconstraints.md)