Android Design Library - Floating Action Button Padding/Margin Issues

Question

I\'m using the new FloatingActionButton from the Google Design Library and I am getting some strange padding/margin problems. This image (with developer layout options on) i

Answer 1

Update (Oct 2016):

The correct solution now is to put app:useCompatPadding="true" into your FloatingActionButton. This will make the padding consistent between different API versions. However, this still seems to make the default margins off by a little bit, so you may need to adjust those. But at least there's no further need for API-specific styles.

Previous answer:

You can accomplish this easily using API-specific styles. In your normal values/styles.xml, put something like this:

and then under values-v21/styles.xml, use this:

and apply the style to your FloatingActionButton:

As others have noted, in API <20, the button renders its own shadow, which adds to the overall logical width of the view, whereas in API >=20 it uses the new Elevation parameters which don't contribute to the view width.