December 2013
Beginner
416 pages
12h 45m
English
Android applications use two types of files: XML files and Java files. The XML layout files define what appears on the screen in your application’s user interface, and the Java files contain the logic of your app.
Android user interfaces can be defined in the XML file, or they can be created programmatically in Java. Given the design of the Android SDK, it’s generally simpler to define the user interfaces in XML rather than in Java. In terms of application logic, this can be done only in the Java files. In this section, you will take a close look at some of the project files and begin to discover how an Android project is put together.
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