Blackberry JAVA DEVELOPMENT ENVIRONMENT - - GPS AND MAPS - DEVELOPMENT GUIDE Manual do Utilizador descarregar pdf (Página 7)

To download a sample application that demonstrates how to use temporary fields, visit www.blackberry.com/go/

eyelidfieldsample. For more information about temporary fields, see the BlackBerry Java Application UI and Navigation

Development Guide and the API reference for the BlackBerry® Java® Development Environment.

Before information displays on a screen temporarily When information displays on a screen temporarily

Font customization

You can install fonts on, and remove fonts from, a BlackBerry® device by using the FontManager class that is provided in the

net.rim.device.api.ui package. For example, you can install a font on a device, use the font in your application, and

enable other applications to use the font.

For more information about fonts, see the BlackBerry Java Application UI and Navigation Development Guide and the API

reference for the BlackBerry® Java® Development Environment.

Grid layouts

You can position fields in rows and columns on a screen to create a grid by using the GridFieldManager class that is provided

in the net.rim.device.api.ui.container class. After you create a grid, you can add fields, delete fields, and specify

the grid's properties. For example, you can use a grid layout to display multiple images on a screen.

For more information about grid layouts, see the BlackBerry Java Application UI and Navigation Development Guide and the

API reference for the BlackBerry® Java® Development Environment.

Feature and Technical Overview

Screen and UI

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - GPS AND MAPS - DEVELOPMENT GUIDE Manual do Utilizador Página 7