Scaling android app to different screen sizes

Question

So I'm working on scaling my application to different screen sizes. Right now Its optimized for a 10.1 inch screen but I'm working to get it to run on the kindle fire which has a 7 inch screen. I'm only using relative layouts. As of now my background scales perfectly but the image buttons ontop of the background don't scale and I was wondering if there was a reason for this. Also I use margins to adjust the positions of my buttons, is this okay for scaling sizes?

Answer 1

to support application on different screen refer the following link

http://developer.android.com/guide/practices/screens_support.html

and to scale image button use nine patch images they scale well.

Also I use margins to adjust the positions of my buttons, is this okay for scaling sizes?

yes it okay.