In order to be able to navigate through the application by automated tests, we need to add ids to the significant elements. Other ways of navigation (xpath, css) is not reliable and fast enough.

For instance here:
https://github.com/aerogear/aerogear-push-helloworld/blob/master/android/src/org/jboss/aerogear/unifiedpush/helloworld/activities/MessagesActivity.java

The ids can be identified by monitor tool or Eclipse.