shouldPerformSegue(withIdentifier:sender:)

Called immediately prior to the performance of a storyboard segue.

Declaration

@MainActor optional func shouldPerformSegue(withIdentifier identifier: NSStoryboardSegue.Identifier, sender: Any?) -> Bool

Parameters

identifier:
The string that identifies the segue to be performed.
Using the Interface Builder inspector, provide a unique identifier string for each segue in a storyboard. The system provides a segue’s identifier to this parameter when it calls this method. The identifier string is used to locate the segue inside the storyboard file that contains the view controller.
note:
This method throws an TP40008195 CH18 if there is no segue with the specified identifier.
sender:
The object that initiated the segue. This object is made available for informational purposes during the segue.

Return Value

true to allow a segue to proceed or false to stop it from proceeding.

Discussion

Override this method to return false for cases where you want to prevent the performance of a segue. By default, invocation of a segue results in the segue being performed.