The Esri ArcGIS Runtime Android Java Sample Code by Esri provides demonstrations for deploying the ArcGIS Runtime SDK in Android applications. Its deployment requires Android studio and the onward of JDK 7. The sample code communicates with Esri arcGIS APIs. Its Gradle-based Android platform allows developers to clone directly and import applications in Android studio.
After nearly a year with two mapping platforms running in parallel, Google announced today that Google Maps V3 had graduated from Google Code Labs to become the primary maps API. Previously the newer version was recommended for mobile applications, the original reason behind the platform rewrite. With V3's graduation, V2 becomes deprecated, but will continue to work for now.