Layout folder to support different devices screens
By following this tutorial, I created 3 different layout folders (over default layout folder):
In this way, some screens do not fit as I want. For example, Nexus s, Galaxy Nexus and Nexus 4 preview seem to use the default layout, but it doesn't fit well. Should I create other layout folders, for these devices (and others that I'm maybe forgetting)?
Nexus s, Galaxy Nexus and Nexus 4 are all "normal" sized devices (or large, i'm not sure). So the behaviour you're getting is "correct".
Have you tried to specify layouts according to the smallest width?
Something like layout-sw480dp, this should target the devices you want.