Creates a hosting controller object from the contents of the specified nib file.
Mac Catalyst 13.0+
The name of the nib file containing the UIKit view controller. Do not include a filename extension or leading path information as part of the name. If you specify nil, you must assign a valid view to the rootView property before accessing the view controller's view property.
The bundle in which to search for the nib file. If you specify nil, this method looks for the file in the main bundle.
A UIViewController object that you can present from your interface.