You have an idea for an Android app and ask a graphic designer to draw up one of the screens in Photoshop. He does that and it looks amazing! But how do you get from that to defining what you need in terms of assets for your user interface implementation? In other words, how and in which format should the portrayed UI be delivered to ensure that it can be used by a developer to implement a UI that looks exactly like the UI as portrayed in Photoshop? I hope I'm making sense here...
UPDATE:
I see that I'm getting negative votes for my question because it's too broad. So here are some specific questions:
Where can I find a complete tutorial which describes the process of designing a user interface in Photoshop to implementing the display of that user interface in Android Studio?
Which tools are commonly used in the process I have described above?