GoogleMapsAPI
This respositry will help you guys to allow your app to use google api in your successfull application..
You need not require any external API because the android studio has an inbuilt function for it ..
/*
But To get the API key ,select the Values folder under which, ther will be a google_maps_api.xml
open it and copy the link provided in it in your favourite browser. */
You will be directed to a page of Google API console with your logged in email id of gmail..
continue the small process like enter package name etc..
on recieving the KEY.
PASTE IT IN THE SAME .XML FILE....
And The UX is provided to you..
HAPPY CODING...............