Best way to have formKey that needs to be used in a widget down the tree

[mfizz1]

As the question states, for example, if you have the Floating action button, and many widgets down the way there is a form (for clean readable code) . What is the best way to pass the key down, without running into duplicate key issue?

[deandreamatias]

I think that the best way is creating a MVVM pattern. On your Viewmodel still the form key and then consume on your widgets