collapseSecondaryViewController(_:for:)
Called when a split view controller transitions to a compact-width size class.
Declaration
func collapseSecondaryViewController(_ secondaryViewController: UIViewController, for splitViewController: UISplitViewController)Parameters
- secondaryViewController:
The secondary view controller associated with the split view controller.
- splitViewController:
The current split view controller.
Discussion
This method provides default behavior when you do not overwrite the splitViewController(_:collapseSecondary:onto:) method. The primary view controller associated with the split view controller is displayed.