Android libgdx big screen resolution

Question

How can I support (make an algorithm) for libgdx for supporting multiple screen resolution? I made my app work on HTC Tattoo using if statments with parameters like:

Answer 1

See a more elegant solution at http://www.java-gaming.org/index.php?topic=25685.0 (also see Nate's comment to that solution).

Also, if you use scene2d, note that currently (libgdx 0.9.6) stage.setViewport method should have this functionality, but it doesn't really behave as one would expect.

Update: setViewPort was fixed, so this works just as expected.