I have read this tutorial SUPPORTING MULTIPLE SCREENS several times and many stackoverflow questions regarding Design Android UIs to fit well with all android screen s
For Multiple screen support:
values (For mdpi devices)
values-hdpi (For hdpi devices)
values-xhdpi (For xhdpi devices)
values-xxhdpi (For xxhdpi devices)
layout-sw600dp (For 7″ to 9″ Screen)
layout-sw720dp (For 10″ to above screen)
For image resources: Create 4 drawable folders:
drawable-mdpi
drawable-hdpi
drawable-xhdpi
drawable-xxhdpi