** Event Handler: the actual method that handles the event.

** Easiest way (if available) is to register the event handler via the layout xml file.

* Fragment: created using an XML layout file that looks like a sub-layout and behaves like a sub-activity. We'll look at fragments next week.

* '''Content Provider''': One way for an application to provide access to data it holds. It's one form of IPC usually used for more standard types of data. See a list of tutorials at the [http://developer.android.com/guide/topics/providers/content-providers.html bottom of this page]. We'll also look at them more closely after the break.