I want you to investigate efficient ways to store geolocations in Google firebase and search and filter based on users current location. So for example, if we have a very large number of locations as a set of latitude and longitude, we want to display only the ones that are within 1 kilometer radius from users current location. And obvious solution is to go through the entire list of locations and select the ones that qualify, but this would not be efficient for large number of inputs.You need to use Google Firebase as your backend and implement an android app that shows the locations on the map base on the user current location.

i need app + academic writing (abstract , introduction , result description with reference)