The application has to use Foursquare Search API (https://developer.foursquare.com/start/search) via REST
Step 1: Enable Your Location
Step 2: Input your keywords (ex: subway)
Step 3: see the result from 4square.
Tested on enviroments:
- Devices: samsung s6 edge, Pixel 2
- Location: Latitude 38.575764, Longitude -121.478851
- Demo screen: