Using the Standalone toolbar has an issue with the select able background of the items, following this article didn\'t work also:
http://blog.mohitkanwal.com/blog/20
Chris Bane answer on the original issue:
https://code.google.com/p/android/issues/detail?id=176431
This is because by default ?attr/actionBarItemBackground is an unbounded RippleDrawable, which means that it projects/draws onto the next parent. In this case, this is the CollapsingToolbarLayout which you can't actually see.
There's not much we can do here from a library perspective. The 'workaround' is to set actionBarItemBackground to not be borderless: