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Best practice: Designing applications for different
types of keyboards
• If you alter the functionality of a key, always return the key to its original state when users close the application.
• Verify that your application is compatible with both full keyboards and reduced keyboards.
• Support modifier keys where appropriate.
• Make sure that users can undo commands easily. Typing can be challenging for new users.
• Choose an appropriate field based on what you expect users to type. For example, if you expect users to type numbers,
use a field that accepts only numbers so that users can type numbers easily. Use the following information to determine
which input method to choose.
Key functionality
In most cases, an action occurs when users press a key, not when they release a key.
Key Use
Alt Type the alternate character on a key on BlackBerry devices with a physical keyboard.
Convenience Open an application or take a picture using the camera application.
BlackBerry devices have a two-stage Convenience key. If you are developing an application,
make sure that the application opens when users press the Convenience key all the way down.
End/Power End a call or press and hold the End/Power key to turn on or turn off BlackBerry devices.
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