Dismiss second ViewController from the third ViewController

Question

I am trying to dismiss VC b from VC c where VC c is a popover and has a button for sign out but it is not working. The structure of the flow is

VC a ----presents modally----> VC b ----presents a popover----> VC c

When the button in the popover is clicked the VC c and VC b must be dismissed so that (VC a)ViewWillAppear is called.

Answer 1

Try this:

You can dismiss your presentingViewController from child view controller as follow

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

When you add a ViewController as childViewController

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

If this view controller is a child of a containing view controller (e.g. a navigation controller or tab bar controller,)

weak open var parent: UIViewController? { get }

The view controller that was presented by this view controller or its nearest ancestor.

open var presentedViewController: UIViewController? { get }

The view controller that presented this view controller (or its farthest ancestor.)

open var presentingViewController: UIViewController? { get }