How to set elevation to Bottom navigation

Question

So by the support V25. We have new component called Bottom navigation.

Follow the Design guidelines, the Bottom Navigation\'s elevation should

Answer 1

I had the same issue and to have a @android:color/white as OP suggested was not acceptable in my case. So since we "can't" get shadow with elevation and custom background we need to hack it.

My approach is adding a shadow view inside the frame layout to "mimic" elevation.

where the background of the shadow view is nothing more than a shape gradient that is positioned over all other just above the bottom nav view, something like:

Hope this helps someone.