January 2014
Intermediate to advanced
736 pages
70h 43m
English
Content preview from Android™ How to Program, Second Edition
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5.1. Introduction
The Flag Quiz app tests your ability to correctly identify 10 country flags (Fig. 5.1). Initially, the app presents a flag image and three guess Buttons representing the possible country answers—one matches the flag and the others are randomly selected, nonduplicated incorrect answers. The app displays the user’s progress throughout the quiz, showing the question number (out of 10) in a TextView above the current flag image. As you’ll see, the app also allows you to control the quiz difficulty by specifying whether to display three, six or nine guess Buttons, and by choosing the world regions that should be included in the quiz. These options are displayed differently based on the device that’s running the app and the orientation ...
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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.