How do I insert code in ViewDidAppear and ViewDidDisappear From other class

Question

I want to change button image whenever UISideMenuNavigationController Appear Or Disappear.

This is the class that has a button.

class MenuViewController         


        

Answer 1

1. Your MenuViewController class could have a function that changes the image on the button. Eg, func changeButtonMenuImage().
2. Your 'UISideMenuNavigationController' (or a subclass of it) could have some sort of connection to the MenuViewController either as a property, instance variable or an IBOutlet. Eg, @IBOutlet var menuController: MenuViewController
3. Then your viewDidAppear and viewDidDisappear can call it's function. Eg, menuController.changeButtonMenuImage()