July 2011
Intermediate to advanced
114 pages
2h 43m
English
book
Building Web Apps for Google TV
by Maile Ohye, Paul Carff, Andres Ferrate, Daniels Lee, Amanda Surya, Shawn Shen, Steven Hines
Content preview from Building Web Apps for Google TV
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Chapter 5. Developing Your Web App
Putting a UI Together
Navigation
Using arrow keys or a D-pad for navigation is an essential part of the Google TV 10-foot experience. While it may seem straightforward at first, it can be complex to implement effective and flexible D-pad navigation for a web page. We’ll start with a simple example of a regular grid of fixed navigable items, add a lefthand navigation bar, and then items along the top of the page for meta-tasks like login.
Tip
You can use straight up JavaScript to code a web app, but we’ve found that the jQuery library enables effective and efficient JavaScript coding that can significantly reduce development time. You can learn more about jQuery at http://jquery.com.
A Regular Grid
Navigating a central section of a page with the arrow keys, which may be a regular grid (Figure 5-1), can be as simple as moving between adjacent items (left/right) and adjacent rows (up/down).
Figure 5-1. A regular grid layout for navigation, the most basic of
designs
For flexibility, we’ll define our content as follows:
<div class="container"> <div class="item-row"> <div class="item-div"> <p class="item"></p> </div> <div class="item-div"> <p class="item"></p> </div> <div class="item-div"> <p class="item"></p> </div> </div> <div class="item-row"> <div class="item-div"> <p class="item"></p> </div> <div class="item-div"> <p class="item"></p> </div> </div> </div> ...
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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.