Blackbe;rry JAVA DEVELOPMENT ENVIRONMENT - - FEATURE AND... Guida all'installazione

BlackBerry Java Development Environment

Version: 4.7.0

Feature and Technical Overview

SWD-552026-1212113555-001

Contents

1 Overview....................................................................................................................................................................................... 2

2Key features.................................................................................................................................................................................. 3

3 New in this release...................................................................................................................................................................... 5

Screen and UI.................................................................................................................................................................................. 5

Touch screen user input......................................................................................................................................................... 5

Touch screen keyboard.......................................................................................................................................................... 5

Accelerometer......................................................................................................................................................................... 6

Screen display direction........................................................................................................................................................ 6

Home screen background image.......................................................................................................................................... 6

Multimedia....................................................................................................................................................................................... 7

Image and video handling..................................................................................................................................................... 7

Video recorder integration.................................................................................................................................................... 7

Digital rights management................................................................................................................................................... 7

4Related resources........................................................................................................................................................................ 8

5System Requirements................................................................................................................................................................. 9

6Glossary......................................................................................................................................................................................... 10

7 Provide feedback......................................................................................................................................................................... 11

8 Legal notice.................................................................................................................................................................................. 12

Overview 1

The BlackBerry® Java® Development Environment is a Java® development environment for creating applications for

BlackBerry® devices. You can use MIDP APIs, CLDC APIs to build a Java® Platform Micro Edition application or use the BlackBerry

APIs to create a custom application that uses the features a BlackBerry device. These features include GPS and location-based

services, multimedia, calendar and email access, a customizable UI, and interaction with a trackwheel or touch screen. You can

also create an application that interacts with the components of the BlackBerry solution including the BlackBerry® Enterprise

Server, push email, BlackBerry® Device Software applications, and server-side resources.

The BlackBerry JDE includes a suite of tools for creating, testing, packaging, and distributing applications. These tools include a

BlackBerry® Smartphone Simulator, a code signing tool for using protected APIs, support for communication protocols, and

integration with other development environments such as NetBeans™.

Feature and Technical Overview Overview

Key features 2

Feature Description

simulation tools You can use the BlackBerry® simulators to test a BlackBerry device application on

a desktop computer, simulate sending and receiving data with a BlackBerry®

Enterprise Server, and send messages between the BlackBerry® Smartphone

Simulator and either a messaging application, such as Microsoft® Outlook®, or

POP3 and SMTP servers.

customizable UI You can use the BlackBerry APIs to create a BlackBerry device application UI with

the same features and layout as the UI of many BlackBerry® Device Software

applications.

tools for building client applications You can create a BlackBerry device application that is standalone or connects to

resources on the Internet or an organization's intranet.

integration with BlackBerry solutions

and device features

You can use the BlackBerry APIs to create a BlackBerry device application that uses

key features of the BlackBerry solution such as email, phone, instant messaging,

the Internet, and SMS. You can also let a BlackBerry device applicaton use key

features of a BlackBerry device such as GPS and location-based services, video

playback, and the trackball.

multilanguage support You can create a BlackBerry device application that can automatically display

information in a language specific to a geographic region.

data storage You can create a BlackBerry device application that stores data in persistent storage

on a BlackBerry device or a microSD card.

support for multiple development

environments

You can integrate a BlackBerry device application with Java® development

environments including Eclipse™ or NetBeans™.

support for development tools You can use a full set of development, optimization, and debugging tools including

windows with breakpoints, locks, memory profiling, and an objects analyser, to

create a BlackBerry device application.

support for Java Platform Micro Edition

technology

You can create a BlackBerry device application that uses standard Java®

specification requests.

use of protocol and programming

language support

You can create a BlackBerry device application that communicates with server-side

applications written in a variety of programming languages and using standard

protocols and data formats such as HTTPs, TCP/IP and XML.

Feature and Technical Overview Key features

Feature Description

push content support You can make sure that your customers are connected to communication and

corporate data by actively sending them data.

security You can create a BlackBerry device application that uses security features such as

AES or Triple DES encryption to transfer data.

Feature and Technical Overview Key features

New in this release 3

Screen and UI

Enhancements to the BlackBerry® Screen and UI APIs let you create a BlackBerry device application that works with the new UI

features of the BlackBerry® Storm smartphone. These features include a clickable touch screen, a touch screen keyboard, an

accelerometer for sensing the orientation and acceleration of the BlackBerry device, and the ability to allow or prevent the

BlackBerry device from changing the display direction of the screen.

Touch screen user input

The BlackBerry® UI APIs now let a BlackBerry device application receive events when a BlackBerry device user touches the screen

of the BlackBerry® Storm smartphone.

A BlackBerry device application can use the net.rim.device.api.ui.TouchEvent class and the

net.rim.device.api.ui.TouchGesture class to receive and respond when a BlackBerry device user performs an

action, like a tap, click, or swipe, on the device screen.

AtoucheventcorrespondstoanactionaBlackBerryuserperformsonthetouchscreensuchasaclick.Atouchgesturecorresponds

to a combination of touch events that a BlackBerry user generates when they touch the touch screen such as a slide across the

screen.

A MIDlet can extend the net.rim.device.api.lcdui.BlackBerryCanvas class, the

net.rim.device.api.lcdui.game.BlackBerryGameCanvas class, the

net.rim.device.api.lcdui.BlackBerryCustomItem class, or the pointer methods in the

javax.microedition.lcdui.Canvas classtoreceiveandrespondwhenaBlackBerrydeviceuser performs an action

on the device screen.

Touch screen keyboard

The BlackBerry® UI APIs now let a BlackBerry device application interact with the touch screen keyboard.

A BlackBerry device application can use the net.rim.device.api.ui.Screen. getVirtualKeyboard()

method to access the touch screen keyboard for the current application screen.

A BlackBerry device application can use the setVisibility(int) method of the

net.rim.device.api.ui .VirtualKeyboard class to display or hide the touch screen keyboard.

Feature and Technical Overview New in this release

Accelerometer

The BlackBerry® Storm device includes an acclerometer that senses the orientation and acceleration of the device. When a

BlackBerry device user moves the device, the accelerometer senses the movement in 3-D space along the x, y, and z axis. A

BlackBerrydeviceuser can change theorientationof the device whichcanchange the display directionofa screen for aBlackBerry

device application between portrait and landscape.

The Accelerometer APIs in the net.rim.device.api.system package let a BlackBerry device application respond to

the orientation and acceleration of a BlackBerry device. For example, you can manipulate a game application to change the

direction and speed of a moving object on the screen as a BlackBerry device user moves and rotates the BlackBerry device at

different speeds.

Screen display direction

When the orientation of the BlackBerry® Storm device changes, the display direction of the screen of a BlackBerry device

application can also change. The display direction refers to the top of the drawing area of the screen relative to the location of

the BlackBerry logo on the BlackBerry device. The display direction of an application screen can be north, south, east, west,

landscape, or portrait.

The BlackBerry® UI APIs now let a BlackBerry device application retrieve the display direction of the screen and prevent a

BlackBerry device from changing the display direction of the screen.

A BlackBerry device application can use the net.rim.device.api.system.Display.getOrientation()

method to retrieve the display direction of the screen. A BlackBerry device application can use

the net.rim.device.api.ui.UiEngineInstance .setAcceptableDirections(int) method to

set the screen to only display in certain directions when a BlackBerry device user changes the orientation of the BlackBerry Storm

device. For example, an application that displays a document could set the screen to always display in landscape mode.

Home screen background image

The BlackBerry® UI APIs now let a BlackBerry device application set the image that appears as the background of the Home

screen on a BlackBerry device.

A BlackBerry device application can use net.rim.blackberry.api.homescreen.HomeScreen.

setBackgroundImage(String uri) with an image file that resides in flash memory or a microSD Card to set the

background image. A typical format for the URI is "file:///store/home/user/pictures/file.jpg." Invoking

net.rim.blackberry.api.homescreen.HomeScreen. setBackgroundImage(String uri) will

override images that other applications have set.

Feature and Technical Overview Screen and UI

Multimedia

Enhancements to the BlackBerry® APIs let you create a BlackBerry device application that can receive image files and video files

from the camera application, video recorder application, and the file explorer. You can also create a BlackBerry device application

that can launch the video recorder application and record video.

Image and video handling

The BlackBerry® APIs now add menu items to the camera application and video recorder that let a BlackBerry device user send

media files to a BlackBerry device application.

A BlackBerry device application uses the javax.microedition.content.ContentHandler API to register as

a content handler. After registration, when a BlackBerry device user takes a picture or records a video, menu items appear in the

camera application, the video recorder, and the file explorer. A BlackBerry device user can use the menu items to send an image

file or video file to the BlackBerry device application.

Video recorder integration

The BlackBerry® APIs now let a BlackBerry device application start the video recorder application.

A BlackBerry device application can use the net.rim.blackberry.api.invoke.Invoke.APP_

TYPE_CAMERA field and the net.rim.blackberry.api.invoke. CameraArguments.

ARG_VIDEO_RECORDER field as arguments to the net.rim.blackberry.api.invoke.

Invoke.invokeApplication method to invoke the video recorder in the camera application and record video.

Digital rights management

The BlackBerry® APIs now let a BlackBerry device application install and use digital rights management licenses for media on a

BlackBerry device.

ABlackBerry device application can usethe net.rim.device.api.drm.DRMManager class tolet a BlackBerrydevice

user play media protected by digital rights management technology on a BlackBerry device.

Each BlackBerry device has one net.rim.device.api.drm.DRMManager and applies the least restrictive license

to media.

Feature and Technical Overview Multimedia

Related resources 4

To download the BlackBerry® Java® Development Environment, visit www.blackberry.com/developers.

For documentation for developers, visit www.na.blackberry.com/eng/support/docs.

For more information about APIs, see the API Reference for the BlackBerry Java Development Environment.

Feature and Technical Overview Related resources

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