splitViewController(_:willShow:)
Tells the delegate that the specified column is about to be shown.
Declaration
optional func splitViewController(_ svc: UISplitViewController, willShow column: UISplitViewController.Column)Parameters
- svc:
The split view controller whose column is being shown.
- column:
The column to be shown. See Column for possible values.
Discussion
This delegate method only applies to column-style split view interfaces. For more information, see Split view styles.
The split view controller calls this method when the system is preparing to show one of its columns; for example, when a person rotates the device. The system doesn’t call this method when you display the column programmatically with show(_:). Use this method to perform any customization associated with showing the column. You can use the split view controller’s transitionCoordinator to coordinate any of your animations alongside the transition animation.