Techniques that I familiar with:
I have experience in Eclipse, Android Studio, git, SVN. In my apps I use such components as Fragments, ContentProviders, Loaders, SQLite, work with XML and json. I widely use Notifications, Services, AsyncTasks. One of my app can export data to cvs, Google Calendar, XML and PDF. Most of all my apps have different Home Screen widgets included, and they are interactive with independent preferences for each of them.
My site: