I have the following MVVM architecture. It is not something special, just for better understanding.

What is the main question is:

How do I need to bind UIButton action to make some reaction in UIViewController.

I try to do it the following way:

1) First of all, I add the property as a closure for ViewModel:

var cellButtonActionCallback: (() -> Void)?

2) I add the same property for CellViewModel:

var buttonCallback: (() -> Void)?

3) When I setup CellViewModel do:

cellViewModel.buttonCallback = cellButtonActionCallback

4) And finally add target for UIButton, and selector buttonAction calls buttonCallback as well:

button.bind { cellViewModel.buttonAction() }

Looks like closure which I define on UITableViewController goes through all viewModels which is not a good idea in my way.

Actually, this approach works fine, but I don't like it.

What is the best way to make the same thing?