The new Material Design of Google recommends to use floating action buttons to draw attention to the user for the main action on that screen. There are quite a lot of examples of this within a list view.
Now, suppose your list view has just enough items to fill the screen, making scrolling impossible. If your list items have a certain component that the user can interact with, for example a switch or a favorite star, its possible that the floating action button is blocking this component. How should we handle this case?
EDIT: This actually always happens with the last item of the list. Here's an example where the 'favorite-star' can not be used properly. It's also blocking content, such as the time in this example.