# NSSplitViewController class documentation

Generated at 2026-06-27 19:09:52 +0000
Software documentation for the NSSplitViewController class
AppKit/NSSplitViewController.h
Description forthcoming.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.
addSplitViewItem:
item
Description forthcoming.
insertSplitViewItem:
item
atIndex:
index
Description forthcoming.
minimumThicknessForInlineSidebars
Description forthcoming.
removeSplitViewItem:
item
Description forthcoming.
setMinimumThicknessForInlineSidebars:
value
Description forthcoming.
setSplitView:
splitView
Description forthcoming.
setSplitViewItems:
items
Description forthcoming.
splitView
Description forthcoming.
splitView:
splitView
additionalEffectiveRectOfDividerAtIndex:
dividerIndex
Description forthcoming.
splitView:
splitView
canCollapseSubview:
subview
Description forthcoming.
splitView:
splitView
effectiveRect:
proposedEffectiveRect
forDrawnRect:
drawnRect
ofDividerAtIndex:
dividerIndex
Description forthcoming.
splitView:
splitView
shouldCollapseSubview:
subview
forDoubleClickOnDividerAtIndex:
dividerIndex
Description forthcoming.
splitView:
splitView
shouldHideDividerAtIndex:
dividerIndex
Description forthcoming.
splitViewItemForViewController:
vc
Description forthcoming.
splitViewItems
Description forthcoming.
toggleSidebar:
sender
Description forthcoming.