Android 3.0 introduced the Fragment class, intended to represent a behavior or portion of a user interface in an Activity. Since then, Google has released the Android Compatibility package to extend Fragment support to devices running Android 1.6 or later.
Fragments allow you to decompose the functionality and user interface of an application into reusable modules. You can then implement your Activities to assemble difference combinations of Fragments depending on the screen size and orientation of the device — for example, taking advantage of the large screen size of a tablet while still supporting smaller handheld devices.
However, Fragments provide benefits beyond improving your application’s support for multiple screen sizes. For example, Fragments allow you to:
Ken Jones is a Sr. Technical Trainer at Marakana, Inc., specializing in teaching Android programming and other open source technologies. Ken has thousands of in-class hours presenting advanced technical topics, and over 25 years experience in technical training and documentation targeted towards software developers. Ken has delivered training to various software development teams within the Fortune 1000 such as Cisco, Intel, IBM, Boeing, AT&T, Ericsson/Nokia, and many more.
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