When using a UINavigationController the viewWillAppear or viewDidAppear methods of my controller are not called

Question

Here is the pitch.

• I have a UIViewController subclass which does something in its viewWillAppear and viewDidAppear methods.
• I want to nest this view c

Answer 1

The above solution not works for me. My case is the custom view controller nested under a complex UINavigationController not gets called viewWillAppear and viewDidAppear. Use below in custom view controller:

beginAppearanceTransition(true, animated: animated)  // Tells a child controller its appearance is about to change. Do not invoke viewWillAppear(_:), viewWillDisappear(_:), viewDidAppear(_:), or viewDidDisappear(_:) directly.
endAppearanceTransition() // Tells a child controller its appearance has changed.