Inserts a tab view into the tab view controller’s list of tabs.
- macOS 10.10+
The tab view item to insert. The tab view item must have an associated view controller. If this parameter is
nilor if the tab view item does not have a view controller, this method throws an exception.
The zero-based index at which to insert the tab. If the index is less than
0or greater than the number of items currently in the array, this method raises an exception.
Use this method to insert new tabs into the existing list of tabs. This method adds the tab’s associated view controller as a child of the tab view controller, so you do not need to call the
add method directly. The view for the new view controller is not loaded until its corresponding tab is selected by the user.
Inserting a new tab updates the tab view interface and adjusts the value in the
selected property as needed.
If you override this method, you must call
super at some point in your implementation.