I know it is more general question but i am curious about that.Android is supporting different size we know about it.My question is when you are development how can solve this issue generally.You can prepare icons for all different size or you are using ninepatch?
Are you using all drwable folder or just big one? if you are using ninepatch ,can we use for background also?
9 patch can be used for background and other things as well but generally for things that are resolution independent. For icons etc, it’s recommended to use icons with different sizes, they are placed in the folders named – drawable-ldpi, drawable-mdpi, drawable-hdpi and drawable-xhdpi for low, medium, high and extra high density screens respectively. Density independent bitmaps can be placed in drawable-nodpi. See http://developer.android.com/guide/practices/ui_guidelines/icon_design.html for more.