I have some cleanup that needs to be performed in a shared resource any time one of my view controllers is dismissed/popped/unloaded? This could either be when the user hits the back button on that individual screen or if a call to popToRootViewController is made (in which case, I would ideally be able to clear up every controller that was popped.)
The obvious choice would be to do this in viewDidUnload, but of course, that isn’t how unload works. Is there a way to catch all cases to where the ViewController is removed from the stack?
edit:Forgot to mention that I am doing this using Xamarin so that may or may not impact the answers.
Source: Xamarin.ios Questions