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
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 5. You've Got to Know When to Hold 'em

This chapter will take us through the development of a Stock Portfolio mobile application. It will allow users to organize their stocks as well as their respective quantities. From there, users will be able to define an amount of money they want to earn through their investments. The application will then allow on-demand retrieval of the latest stock prices from the Internet and then calculate the total portfolio's value. The application will then display how far (or close) the user is from his/her objective. When the portfolio's total value reaches the objective, the application will recommend selling the stocks.

This new application is different in terms of navigation, since it has two windows. The main window will show the investment progression using a progress bar component as well as labels and buttons for interaction. The second window will show all the stocks from the portfolio, as well as text fields to allow the users to change some...