What should a designer provide an android developer besides the layout itself?

Question

Android

Hello.
Made my first app for android.
I want it to see the light and be able to show it to the employer by dropping a link to the market.
I am not a designer, so I will order design from freelancers.
What to require from the designer besides specifying dimensions in dp and layout?

Answer 1

Assets of course. That is, sliced ​​graphics, if any. Icons, logos and all that. Under different screen densities of course.