David Gassner shows how to define different fragment layouts and add them to activities with XML or Java, create layouts for different screens and use a resource alias to select the right layout at runtime, and communicate between activities and fragments. He'll also show you how to make fragments work on older versions of Android, with the support library, and use fragments to display dialogs and preference screens.

Topics include:

• Understanding fragments
• Adding fragments to activities
• Creating layouts for multiple screens
• Understanding arguments and callback methods
• Updating apps with support for fragments