What are definesPresentationContext and providesPresentationContextTransitionStyle

Question

ViewController has definesPresentationContext and providesPresentationContextTransitionStyle, but have no idea about how they work. I

Answer 1

definesPresentationContext is related to child view controllers which in storyboards are represented by Container View. So, this option influence a presentation of a new UIViewController from a container view.

providesPresentationContextTransitionStyle is related also to child view controllers and will take effect only when definesPresentationContext is true