Segues vs. UIViewControllerAnimatedTransitioning

Question

While searching how to perform custom animations when transitioning from one controller to another I found some info about UIViewControllerAnimatedTransitioning.

So the question is: why do we even need this if we have custom segues? Are they interchangeable or not? If yes, why does Apple provide two ways of doing the same task?

Answer 1

Some differences:

• Segues can only be used with storyboards.
• Animator objects can be used programmatically, or along with segues.
• Animator objects allow you to set a customized final position and size for your new view controller.
• Animator objects can be configured to do special animations with navigation controllers and collection views.
• Animator objects also allow interactive transitions using UIViewControllerInteractiveTransitioning, which segues don't.