January 2014
Intermediate to advanced
736 pages
70h 43m
English
Content preview from Android™ How to Program, Second EditionBecome 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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2.5.1. Adding Images to the Project
For this app, you’ll need to add the Deitel bug image (bug.png) and the Android logo image (android.png) to the project. These are located with the book’s examples in the images folder’s Welcome subfolder. File names for image resources—and all the other resources you’ll learn about in later chapters—must be in all lowercase letters.
Because Android devices have various screen sizes, resolutions and pixel densities (that is, dots per inch or DPI), you typically provide images in varying resolutions that the operating system chooses based on a device’s pixel density. For this reason your project’s res folder contains several subfolders that begin with the name drawable. These folders store images with different ...
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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.