Book Image

Creating Mobile Apps with Appcelerator Titanium

By : Christian Brousseau
Book Image

Creating Mobile Apps with Appcelerator Titanium

By: Christian Brousseau

Overview of this book

Smartphones and tablets have really changed the technological landscape over the last 3-4 years. Much like the web did in the last decade, these powerful tools have changed the way people communicate and access information. Such a wide market creates opportunities for developers who have the skills to develop mobile applications. "Creating Mobile Apps with Appcelerator Titanium" is a practical, step-by-step guide to building iPhone, iPad, and Android applications using JavaScript. This book will give you a solid grounding of the dos and don'ts of mobile development and also covers a lot of the functionalities offered by the Titanium platform. This book begins with a look at what the Titanium platform has to offer. By taking you through clear tutorials on developing each application step-by-step, it helps you to apply your newly acquired knowledge afterwards. The difficulty level gradually increases along the course of the book. Each application from this book covers different aspects of mobile development. Every chapter starts by defining the application's features as well as the user interface structure. Every single code section is then explained and put into context allowing you to gain a clear understanding of their purpose and functionality. The book takes a “small milestone” approach, allowing you to actually run the application and see the progression. Every step is accompanied by many screenshots so you can see the expected result on screen. You will learn everything you need to know to develop your very own mobile applications. The book takes a laid-back approach to Titanium development and provides information in a way designed to never overwhelm the reader with information and also uses clear diagrams, screenshots, and tips throughout.
Table of Contents (18 chapters)
Creating Mobile Apps with Appcelerator Titanium
About the Author
About the Reviewers

The Polo window

Implementing a reverse approach to the Marco Polo concept, we will first give our players the ability to provide information about their position to other players using the cloud. This approach makes sense because there is a little chance of getting the other player's location if no one shares it first.

The user interface

We will edit our PoloWindow.js file and add the following code right after where we created our window. We will begin by adding a new label at the top:

  top: 17,
  width: '80%',
  height: Ti.UI.SIZE,
  color: '#000',
  text: 'Enter your name'

We will then create a text field that will require our players to enter their name. It will span 80 percent of the screen's width, having a solid border with rounded corners. For its value, we will rely on a property named PLAYER_NAME so that it persists even when the player quits the application. If this is the first time the application is started (meaning there is no property saved...