Present New ViewController programmatically [Swift 3] - ios

Question

What I am trying to do is present a new view controller programmatically with Swift 3 with an animated fade-out then fade-in and a pop-up then pop-down depending on what view controllers the user enters. This is so my app feels more modern and less old and blocky.
Here is the current method I am using for presenting a new view controller. It works, but it is rather abrupt and robotic:
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let ExampleVC = storyBoard.instantiateViewController(withIdentifier: "ExampleVC")
//ExampleVC standing for ExampleViewController
self.navigationController?.pushViewController(ExampleVC, animated: false)
here is a method for animating UIViews but it doesnt work with UIViewControllers
func popIn(yourView : UIView) {
yourView.transform = CGAffineTransform(scaleX: 0.01, y: 0.01)
UIView.animateKeyframes(withDuration: 0.2, delay: 0.0, options: UIViewKeyframeAnimationOptions.calculationModeDiscrete, animations: {
yourView.transform = .identity
}, completion: nil)
self.view.addSubview(yourView)
}
i need something similar to this but for a UIViewController
UPDATE
here is what you would use to to present a new viewcontroller in a cool way to make your app more modern
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let VC = storyboard.instantiateViewController(withIdentifier: "Example") //<<< make sure you enter in your storyboard ID here or you will crash your app
VC.modalTransitionStyle = .crossDissolve //you can change this to do different animations
VC.view.layer.speed = 0.1 //adjust this to animate at different speeds
self.navigationController?.present(VC, animated: true, completion: nil)
if you have any questions comment them so i can help you guys out

Answer 1

var storyboard = UIStoryboard(name: "Main", bundle: nil)
var ivc = storyboard.instantiateViewController(withIdentifier: "ExampleVC")
ivc.modalTransitionStyle = .crossDissolve
ivc.view.layer.speed = 0.1
self.present(ivc, animated: true, completion: { _ in })
Check this code for animation to view controller