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 main application window

Our main application window will be comprised of a progress bar that will indicate how far we are from our objective. This same progress bar will have a label on each end to indicate the minimum and maximum value. There will also be a much larger label right at the center of the window which will serve as the recommendation (whether to hold on to our stock or sell it).

Finally, there will be buttons on each window's bottom-corners, one to access the portfolio management window and a second one to refresh the stocks by retrieving their latest selling price online:

Moving on to the code

As mentioned earlier, our main application window will be contained in its very own JavaScript file. So, in Titanium Studio, we will create a new file by navigating to the File | New | File menu. We will name it ApplicationWindow.js and it will be located in the Resources/ui directory.

In order to be able to load the application window, we need to define a function that will return our...