Do it yourself Android

We’ll be using 

• the foursquare-api-java to do the actual Foursquare calls.
• the Google APIs Client Library for Java to help us out with the OAuth 2.0 flow

I’ve decided to use the foursquare-api-java, a project hosted at Google Code, as it offers a rich interface to interact with Foursquare. The same API calls are possible through the Google API client for Java, but it would require you to write your own model classes to do the JSON to Java translation.
I will post some sample code here on how this can be done with the Google APIs client library for java.

In the sample application hosted at Github, we’re going to display a map where the user can select a location. Upon selecting a location, we’ll load up a list of Foursquare venues that the user can select.
Upon selecting a venue, we’ll return to our map, put a marker on the map representing the venue, and allow the user to perform a checkin.