Where can I find sample code for communicating with SharePoint from android device using rest apis?
To use the REST capabilities that are built into SharePoint 2013, you can construct a RESTful HTTP request using the Open Data Protocol (OData) standard that corresponds to the desired client object model API. The client.svc web service handles the HTTP request and serves the appropriate response, in either Atom or JavaScript Object Notation (JSON) format. The client application must then parse that response. Figure 1 shows a high-level view of the SharePoint REST architecture.