情节提要中封面垂直过渡的对面

Question

I was wondering how i could create a segue with the exact opposite transition of cover vertical! Cover Vertical comes from bottom to top, i want a top to bottom transition. How could i achieve this? Thanks in advance!

Answer 1

I believe your question can be answered by another stackoverflow post

And from Apple

The key is to implement your own - (void)perform method. Before the + animateWithDuration:delay:options:animations:completion: method, set the viewController.view.origin to be below the screen and in the animations block adjust it's height.