java - Configuration qualifiers for 320x480 Android (Galaxy Ace) -

i have application struggling make right on galaxy ace 320*480 mdpi.

using drawable-sw320dp-mdpi seems effect of other screens such galaxy s2 (480*800 hpdi) though have drawable-sw480dp etc should used automatically on higher res?

really confused this, appreciated.

my guess if it's not showing right on ace, it's identifying different screen size/density think should be. guess it's lower density think, without kind of screen shots or further description on you're seeing don't know can offer more help.