Blackbe;rry JAVA DEVELOPMENT ENVIRONMENT User manual

BlackBerry device application
development
Getting started guide

BlackBerry device application development Getting started guide
Last modified: 9 February 2009
Part number: 21215185
At the time of publication, this documentation is based on the BlackBerry Java Development Environment version 4.7.0.
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Contents
1Tools for creating a BlackBerry device application........................................................................................ 7
Using the BlackBerry Java Development Environment................................................................................7
Prerequisites for using the BlackBerry Java Development Environment...........................................7
Using the BlackBerry JDE Plug-in for Eclipse ...............................................................................................7
Prerequisites for using the BlackBerry JDE Plug-in for Eclipse.......................................................... 8
Development tools............................................................................................................................................ 8
BlackBerry simulators....................................................................................................................................... 9
The BlackBerry Smartphone Simulator .................................................................................................. 9
The BlackBerry MDS simulator................................................................................................................ 9
The BlackBerry email server simulator..................................................................................................10
2Creating a BlackBerry device application....................................................................................................... 11
Create a basic BlackBerry device application ..............................................................................................11
Create a project for the HelloWorld application in an Eclipse workspace .......................................11
Set the information and type for the project for the HelloWorld application..................................11
Add .java source files to the project for the HelloWorld application................................................12
Import resources into HelloWorld.java..................................................................................................12
Provide a UI for a HelloWorld application ............................................................................................12
Allow the HelloWorld application start sending and receiving events when the application starts
12
Create a screen for the HelloWorld application ..................................................................................13
Allow the HelloWorld application display a screen.............................................................................14
Display a message when a BlackBerry smartphone user closes the HelloWorld application ......14
Test the HelloWorld application in the BlackBerry Smartphone Simulator ....................................14
Code sample: A HelloWorld application ...............................................................................................15
Create a BlackBerry device application with advanced UI features........................................................16
Create a project for a CityInfo application in an Eclipse workspace................................................16
Set the information and type for the project for the CityInfo application ......................................16
Add .java source files to the project for the CityInfo application ..................................................... 17
Import resources into CityInfo.java ....................................................................................................... 17
Provide a UI for the CityInfo application.............................................................................................. 17
Allow the CityInfo application start sending and receiving events when the application starts 17
Create a screen for the CityInfo application ........................................................................................18

Allow the CityInfo application use a screen that displays a drop-down list of city names...........18
Create a menu item that a BlackBerry smartphone user clicks to display more information about
a city they select.......................................................................................................................................18
Create a menu item that a BlackBerry smartphone user clicks to close a BlackBerry device appli-
cation..........................................................................................................................................................19
Add menu items to the CityInfo application menu .............................................................................19
Create a screen that displays information about a city.....................................................................20
Allow the CityInfo application set the values of UI fields with city information............................ 21
Test the CityInfo Application in the BlackBerry Smartphone Simulator .........................................21
Code sample: A BlackBerry device application that displays information on a city the user selects
22
3Testing a BlackBerry device application ........................................................................................................25
Obfuscating a BlackBerry device application ............................................................................................ 25
Preverifying a BlackBerry device pplication ............................................................................................... 25
Testing a BlackBerry device application ..................................................................................................... 25
Testing a BlackBerry device application on a BlackBerry Smartphone Simulator ........................26
Testing a BlackBerry device application on a BlackBerry smartphone...........................................26
4Distributing a BlackBerry device application................................................................................................29
Application distribution through a computer connection........................................................................29
Distribute an application from a computer .........................................................................................29
Distribute an application from a web page .........................................................................................29
Distribute an application for testing ....................................................................................................29
Application distribution over the wireless network...................................................................................29
Wireless pull (user-initiated)..................................................................................................................30
Wireless push (server-initiated) ............................................................................................................30

1
Tools for creating a BlackBerry device
application
Using the BlackBerry Java Development Environment
You can use the BlackBerry® Java® Development Environment to create, test, and package BlackBerry device
applications for BlackBerry smartphones. The BlackBerry Java Development Environment is a Mobile Information
Device Profile (MIDP) and Connected Limited Device Configuration (CLDC) compliant J2ME environment
designed to provide a complete set of APIs and tools for you to develop a BlackBerry device application that runs
on BlackBerry smartphones. The BlackBerry Integrated Development Environment, included with the BlackBerry
JDE, lets you create a BlackBerry device application using CLDC 1.1 APSI, MIDP 2.0 APIs, and BlackBerry API
extensions that provide additional capabilities specific to BlackBerry smartphones.
Prerequisites for using the BlackBerry Java Development Environment
Your system must meet the following requirements to support the BlackBerry® Java®Development Environment:
•Microsoft® Vista™, Windows® 2000, or Windows XP
•Intel® Pentium® III processor or compatible (800 MHz or higher)
•512 MB RAM
•100 MB free hard disk space
•Java®SE Development Kit (JDK) Version 6 (download from the Sun Microsystems web site). The <bin>
directory of the Java SDK must be part of the system's PATH environment variable.
•DirectX 8.0 or greater (for the BlackBerry Smartphone Simulator)
Using the BlackBerry JDE Plug-in for Eclipse
You can use the BlackBerry® Java®Development Environment Plug-In for Eclipse™ to develop, debug and test
BlackBerry device applications from within Eclipse™ and Eclipse-based IDEs. You can use the BlackBerry® JDE
Plug-in for Eclipse™ to develop BlackBerry device applications for BlackBerry smartphones. The BlackBerry® JDE
Plug-in for Eclipse™ contains a subset of the features and components included in the BlackBerry Java
Development Environment.
Using the BlackBerry Java Development Environment
Using the BlackBerry JDE Plug-in for Eclipse
Development tools
BlackBerry simulators

8
Getting started guide
Prerequisites for using the BlackBerry JDE Plug-in for Eclipse
Verify that your system meets the following requirements:
•BlackBerry® Java®Development Environment Version 4.3.0 or later.
•BlackBerry® JDE Plug-in for Eclipse™ Version 1.0
•Eclipse™ Classic 3.4
•Microsoft® Windows Vista™, or Windows® XP
•Java®SE Development Kit (JDK) Version 6 (download from the Sun Microsystems web site). The <bin>
directory of the Java SDK must be part of the system's PATH environment variable.
•DirectX 8.0 or greater (for the BlackBerry Smartphone Simulator)
Development tools
The BlackBerry® Java® Development Environment (JDE) and BlackBerry® Java®Development Environment Plug-
In for Eclipse™ include multiple tools that you can use to develop BlackBerry device applications. You can also
obtain these tools by downloading the BlackBerry Java Development Environment Component Package..
Tool Description
RAPC Use the RAPC command prompt compiler to compile .java and .jar files into .cod files that you
can run in the BlackBerry Smartphone Simulator or load onto a BlackBerry smartphone. When
you invoke RAPC, use the "-import=" option to specify the net_rim_api.jar file as an input file.
For example, the following command prompt instruction compiles the SampleApp.jar file into a
.cod file of the same name:
rapc import=net_rim_api.jar codename=SampleApp\SampleAppDriver -
midlet SampleApp.jad Samples\SamplaApp.jar
JavaLoader From a command prompt, use the JavaLoader tool to:
"Add, update, or remove a BlackBerry device aplication on a BlackBerry smartphone for testing
purposes. For production BlackBerry device applications, use the BlackBerry Desktop Software.
"View information about BlackBerry device application .cod files.
To run the JavaLoader tool, type a command with the following format:
javaloader [-u] [-p<port>|<pin>] [-b<baud>] [-d0|-d1] [-w<password>]
[-q] <command>
Signature Tool Use the Signature Tool application to send code signature requests to the BlackBerry Signing
Authority Tool. Send code signature requests when your BlackBerry device application code
requires access to controlled APIs, classes, and methods.
Preverify Use the Preverify tool to partially verify your classes before loading your BlackBerry device
application onto a BlackBerry smartphone. Completing this step will reduce the amount of
processing the smartphone must perform when you load your BlackBerry device application.
The Preverify tool receives a class path as input and produces new classes in an output directory
that you specify.
To run the Preverify tool, from the command prompt, type a command in the following format:
preverify [-d] output -classpath <directory> input; <directory>

9
1: BlackBerry simulators
BlackBerry simulators
The BlackBerry® Java® Development Environment (JDE) and the BlackBerry® Java®Development Environment
Plug-In for Eclipse™ include three different simulators you can use to create and test a BlackBerry device
application for a BlackBerry smartphone. See the BlackBerry Simulator Guide for more information on how to use
BlackBerry Smartphone Simulators.
The BlackBerry Smartphone Simulator
The BlackBerry®Smartphone simulator enables you to run BlackBerry device applications on your computer. The
BlackBerry Smartphone Simulator includes the BlackBerry device applications that are typically available on
BlackBerry smartphones and enables you to load and test your own BlackBerry device applications. You can
simulate and test various connectivity and state changes using the BlackBerry Smartphone Simulator. When you
use the BlackBerry Smartphone Simulator to perform testing, you might need to simulate additional BlackBerry
services. The BlackBerry MDS Simulator and the BlackBerry email server simulator are available for this purpose.
You can obtain BlackBerry Smartphone Simulators by downloading the BlackBerry® Java® Development
Environment, the BlackBerry® Java®Development Environment Plug-In for Eclipse™, or the BlackBerry® Java®
Development Environment Component Package from the BlackBerry Developer Zone web site at http://
www.blackberry.com/developers.
The BlackBerry MDS simulator
The BlackBerry® MDS simulator is designed to simulate the BlackBerry MDS Connection Service component of
the BlackBerry Enterprise Server. Using the BlackBerry Smartphone Simulator with the BlackBerry MDS simulator
enables you to test network, push, and browser applications that are designed for use with a BlackBerry Enterprise
Server. If you are testing BlackBerry device applications that require an HTTP connection, you need the
BlackBerry Smartphone Simulator and the BlackBerry MDS simulator. You can obtain the BlackBerry MDS
simulator by downloading the BlackBerry® Java® Development Environment, the BlackBerry® Java®Development
Environment Plug-In for Eclipse™, or the BlackBerry Email and MDS Services Simulator Package from the
BlackBerry Developer Zone web site at http://www.blackberry.com/developers.
JDWP The Java Debug Wire Protocol (JDWP) program lets you debug BlackBerry device applications
using third-party IDEs. The BlackBerry JDE Component Package includes the files that JDWP
requires to debug BlackBerry device applications:
•DefaultBuild.rc: a configuration file
•"FixedBuild.rc: a configuration file
•"Launcher.exe: a utility tool
•"focusFlipper.exe: a utility tool
•RimUsbJni.dll: a helper file that permits the JDWP program to communicate with a
BlackBerry smartphone through a USB port
Tool Description

10
Getting started guide
The BlackBerry email server simulator
The BlackBerry® email server simulator is designed to send and receive messages between the BlackBerry
Smartphone Simulator and either a messaging application, such as Microsoft® Outlook®, or POP3 and SMTP
servers. You do not require a BlackBerry® Enterprise Server. You can obtain the BlackBerry email server simulator
by downloading the BlackBerry® Java®Development Environment, the BlackBerry® Java®Development
Environment Plug-In for Eclipse™, or the BlackBerry Email and MDS Services Simulator Package from the
BlackBerry Developer Zone web site at http://www.blackberry.com/developers.