Screen Compatibility issue in android

Question

I have a problem regarding my app.I have created tab bar using image button,when I run the app in 480*800 hdpi device the tab bar images are displaying perfectly when I run

Answer 1

You have to read below document first:- http://developer.android.com/guide/practices/screens_support.html

or

Is there a list of screen resolutions for all Android based phones and tablets?

above also hope use full to you.