Book Image

BlackBerry Java Application Development

Book Image

BlackBerry Java Application Development

Overview of this book

BlackBerry Smartphone was once the domain of jet-setting business users with power suits. Now you can hardly go anywhere without seeing someone using a BlackBerry to check their messages or make a call. It's this kind of explosive growth that makes the BlackBerry ecosystem a great place to develop and market applications through the BlackBerry App World store—this book shows you how to do just that! This step-by-step guide gives you a hands-on experience of developing innovative Java applications for your BlackBerry. With the help of this book, you will learn to build your own applications to illustrate the platform, and the various capabilities that developers can use in their programs. It explores the powers of Blackberry and helps you develop professional and impressive Java applications. The book teaches how to write rich, interactive, and smart BlackBerry applications in Java. It expects the readers to know Java but not Java Mobile or the BlackBerry APIs. We will learn to build rich, interactive, and smart Java applications for the BlackBerry. The book will cover UI programming, data storage, programming network, and internet API apps. As we move on, we will learn more about the BlackBerry's device features, such as messaging, GPS, multimedia, contacts and calendar, and so on.This book also helps you build your own applications to illustrate the platform, and the various capabilities that developers can use in their programs.
Table of Contents (18 chapters)
BlackBerry Java Application Development
Credits
About the Author
Acknowledgement
About the Reviewers
Preface

Alternate entry points


We said very early on in this book that the static method called main was the entry point for a BlackBerry application, do you remember that? It's been so long ago and we've created so many projects using the same UiApplication structure that you might have forgotten. It's gotten so familiar that you don't even think about it anymore.

Well, now it's time to go back and look at things more closely and change how you think of that boring main method.

There is a special project type called an alternate entry point project that can be used to accomplish things that just can't be done otherwise. Using an alternate entry point project, you can use the same project and code to host more than one application. It is, in essence, saying that a second application should use the same program files as another existing project.

Alternate entry points don't change the fact that there is still one, and only one, static main method in the project. Instead, they rely on additional parameters...