The Android SDK includes a number of Fragment subclasses that encapsulate some of the most common Fragment implementations. Some of the more useful ones are listed here:
DialogFragment — A Fragment that you can use to display a floating Dialog over the parent Activity. You can customize the Dialog’s UI and control its visibility directly via the Fragment API. Dialog Fragments are covered in more detail in Chapter 10, “Expanding the User Experience
ListFragment — A wrapper class for Fragments that feature a ListView bound to a data source as the primary UI metaphor. It provides methods to set the Adapter to use and exposes the event handlers for list item selection
WebViewFragment — A wrapper class that encapsulates a WebView within a Fragment. The child WebView will be paused and resumed when the Fragment is paused and resumed