UINavigationController

extension UINavigationController


                    
                    
                    push(_:animated:completion:)

Pushes the given view controller and calls the given closure upon completion.

Swift

public func push(_ viewController: UIViewController,
                 animated: Bool = true,
                 completion: (() -> Void)? = nil)

`viewController`	The view controller to push onto the stack.
`animated`	Specify `true` to animate the transition or `false` if you do not want the transition to be animated.
`completion`	The closure to be called upon completion.


                    
                    
                    pop(animated:completion:)

Pops the top view controller and calls the given closure upon completion.

Swift

public func pop(animated: Bool = true,
                completion: (() -> Void)? = nil)

`animated`	Specify `true` to animate the transition or `false` if you do not want the transition to be animated.
`completion`	The closure to be called upon completion.