I started work on it in offline library

Library: https://github.com/danielpassos/aerogear-android-offline/commit/e89e242dd2231359a8f82477279f9a7cf5bdf59b
App: https://github.com/danielpassos/aerogear-android-offline-demo/commit/e24962d25db0563f7033d8a704e2987b85e2fd04