I\'m developing an app in android and I have to support all different screen sizes and density. So i\'ve created different folder for layout : layout-small layout-larg
Android adjust by it self you can put separate image for different folder if you want to use different images for high resolution devices and other device. Otherwise just put in one drawable,layout folder only for some images you can make 9-patch also.
read here
you need permission in manifest for multiple screen support link