Add getter for floatingActionButtonLocation in ScaffoldState about flutter

[kacpmu]

By getting that value from the Scaffold's state I could provide very easy to use and more responsive implementation that does not require setup. Of course, I could pass current FAB location directly into the bottom app bar, but I would like to obtain this info without doing so, since it requires yet another state in your app to be properly managed or at least another place you need to put this info for your widget. On the other hand, Scaffold's state is already out there and may be utilized.

[Piinks]

Hi @kacpmu, the ScaffoldState should not be needed to access the FloatingActionButtonLocation. By default it is FloatingActionButtonLocation.endFloat, otherwise it is whatever location you have provided to Scaffold.floatingActionButtonLocation. Is there a case that requires getting that value from the state of the Scaffold?