child(_:ofItem:)
Returns the specified child of an item.
Declaration
func child(_ index: Int, ofItem item: Any?) -> Any?Parameters
- index:
The index of the child item in the parent.
- item:
The parent item whose child item you want to retrieve.
Return Value
The child item or nil if the item could not be found.
Discussion
You can call this method on an outline view with either a static or dynamic data source. For an outline view whose contents are dynamic, this method may call out to the outlineView(_:child:ofItem:) method of the associated data source object.