It’s not an acceptable solution to have to show/hide the FAB whatever tab is selected. I’ve tried every layout combination, but moving the FAB to the activity layout was the only solution that worked. But what if you need the button only in one tab? It’s the only way that works now, but I’m expecting an update of the design library since this version is too buggy. Anyway, the bottom line is that the FAB must be a direct descendant to the CoordinatorLayout, so it doesn’t get pushed down by the collapsing Toolbar…