Fab In Lollipop Shows Strange Shadow On Long Press

I am using the FloatingActionButton in a CoordinatorLayout:

But this is in fact an ugly solution and the margins are not perfect, so I am open to better solutions.

Solution 2:

Try to set elevation:

app:elevation="0dp"

Solution 3:

You can add app:rippleColor="@color/transparent" to set the ripple color to transparent.