By Anthony Rizk
Are you a Java programmer searching for a brand new problem and money-making chance? if this is the case, Beginning BlackBerry Development may be the booklet for you. This ebook will train you every thing you want to be aware of to begin constructing apps that run at the BlackBerry kinfolk of units and smartphones. With over 50 million BlackBerry units offered and the release of the hot BlackBerry App global, there hasn't ever been a extra fascinating time to get into BlackBerry software development.
Assuming just some programming heritage in Java or an analogous language, this publication starts off with the fundamentals, providing step by step tutorials that take you thru downloading and fitting the BlackBerry improvement surroundings, growing your first apps, and exploring the BlackBerry APIs.
You’ll use the BlackBerry person interface elements to create the appear and feel you will have; tips to use networking to create purposes which could check with servers wherever on the web; tips on how to deal with software lifecycle and information garage; and the way to take advantage of the GPS and mapping performance incorporated on many units to create location-aware applications.
You’ll additionally find out about the various methods you could package deal and distribute your apps, from deploying apps by yourself site to directory your apps on the market on BlackBerry App World.
What you’ll learn
- Complete BlackBerry local program improvement
- How to paintings with the BlackBerry Java improvement setting (JDE) and the JDE Plug-in for Eclipse
- How to debug your apps, and installation onto genuine units
- How to paintings with networking, GPS and maps, and chronic garage
- How to paintings with and customise the BlackBerry UI
- Ways to distribute your apps, from webhosting by yourself site to directory on BlackBerry App global
Who this e-book is for
software program builders who've very little event with BlackBerry improvement and have an interest in constructing local functions or apps for BlackBerry. preferably, you’ll have a few heritage in Java or an analogous language.
Table of Contents
- Setting the level
- Hello global
- What Makes a BlackBerry software?
- User Interface fundamentals
- Beyond the fundamentals of consumer Interfaces
- Storing info
- Hello in the market! creating a Network-Enabled program
- Where Am I? utilizing Location-Based providers
- Getting Your App available in the market: Packaging and Publishing
- Next Steps
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Extra resources for Beginning BlackBerry Development
Figure 2-18. Creating a new workspace in Eclipse If this is the first time you’ve opened this workspace, you’ll see Eclipse’s new workspace Welcome screen (see Figure 2-19). There are useful things here, but for this tutorial, just click “Go to the workbench”. Figure 2-19. Com 33 34 CHAPTER 2: Hello World To create a new BlackBerry project, click the File menu, and choose New ➤ Project. In the New Project dialog, select BlackBerry Project from the BlackBerry folder, as shown in Figure 2-20. Figure 2-20.
Or, as a shortcut, you can right click the com/beginningblackberry/helloworld directory instead of the project name to have the JDE automatically fill in the package directory for you. HelloWorldApp and HelloWorldMainScreen are the only classes we’ll need for this application. The application project, as it appears in the JDE, is shown in Figure 2-7. Com 21 22 CHAPTER 2: Hello World Figure 2-7. Both classes for Hello World in the JDE The Main Application Class The main application class will need to do three things: Create an instance of the application Create the main screen and push it onto the display stack Start the event dispatch thread This is generally the pattern you’ll follow for all your applications, unless you need to do something like automatically start when the BlackBerry device boots.
You’ll still get a chance to do work on the thread, but for the most part, its activities are scheduled by the BlackBerry operating system. enterEventDispatcher won’t return for the entire life cycle of your application, so if there’s anything your main thread must do before calling this (for example, some types of initialization) you have only one chance. Processing Events The application responds to keyboard input, trackball, or touch screen movements and clicks and to other events like system messages.