Initializes and returns a presentation controller for transitioning between the specified view controllers
- iOS 8.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
The view controller being presented modally.
The view controller whose content represents the starting point of the transition.
An initialized presentation controller object or
nil if the presentation controller could not be initialized.
This method is the designated initializer for the presentation controller. You must call it from any custom initialization methods you define for your presentation controller subclasses.