Push Up View Controller from Bottom using Swift

Question

I would like to push a view controller using Swift and animate it so it appears from the bottom and moves up. I have the following code to push my view controller:

Answer 1

I had a similar situation where I needed to show a navigation item with some UIBarButtonItems on a view controller, but when presenting modally, it wasn't showing up. It was showing only when pushing from a navigationController, but I really needed the animation from bottom -> up. I tried the CATransition examples from above, but it brought up another bug where there was like a black shadow / translucent background during the animation. I came up with a pretty simple solution in the end:

let someVC = storyboard?.instantiateViewController(withIdentifier: "SomeVC") as! SomeVC
let navController = UINavigationController(rootViewController: someVC)
navigationController?.present(navController, animated: true, completion: nil)

And to close the view controller and get rid of the navigation controller altogether, you just call:

self.dismiss(animated: true, completion: nil)

This will dismiss the view controller, and will release our navigationController from memory.

It is a simple solution in the end, but I spent some time until coming up with it. Maybe I'll save someone else's time :)