April 2015
Beginner to intermediate
494 pages
10h 26m
English
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Detecting keyboard, D-Pad, and Trackball events
The most common input device among all is the keyboard. This is true for Android too. An Android keyboard can be physical: in the device front face (like traditional Blackberries) or on a slide-out screen. However, a keyboard is more commonly virtual, that is, emulated on the screen at the cost of a large portion of space taken. In addition to the keyboard itself, every Android device must include a few physical or emulated buttons such as Menu, Home, and Tasks.
A much less common type of input device is the Directional-Pad. A D-Pad is a set of physical buttons to move up, down, left, or right and a specific action/confirmation button. Although they often disappear from recent phones and tablets, ...
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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.