December 2013
Beginner
416 pages
12h 45m
English
book
Learning Android™ Application Programming: A Hands-On Guide to Building Android Applications
by James Talbot, Justin McLean, Jorge Hernandez
Content preview from Learning Android™ Application Programming: A Hands-On Guide to Building Android ApplicationsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Using IDs in XML Files and Their Effect on Generated Files
Layout files contain the elements (such as text views or buttons) that will be used in the user interface of your Android application. It’s important to be able to reference those user interface views with an id attribute in your Java code—for example, if you wanted to populate them with data. At compile time, every view with an id attribute in the layout XML file becomes a constant in the generated R.java file. These views can either be “stock” views defined in Android itself, or they can be classes that you have created and defined in your own project. The following are the various ways to refer to a view or to create a new view with an id that you can refer to.
@android:id refers ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.