Small Customization, Upload, Install & Run (Android App) - FIXED PRICE

I purchase a script code (Android App) but I need:

+Add splash screen
+Add Google Drive API (feature)
+Change the background colors
+Write/Insert the Admobile number account.
+Upload, install, and Run (google store)

Fixed Price: US$15
Project Time: 10 days
Note: I send the android developer account.

Skills:
Javascript
Android App Development