Check boxes
Use check boxes for binary options that users can understand easily. For example, use a check box for an option that can be turned on and off.
Users can perform the following action with a check box:
Action |
BlackBerry devices with a trackpad only |
BlackBerry devices with a touch screen and a trackpad |
|---|---|---|
Select a check box. |
Press the Space key or click the trackpad. |
Best practice: Implementing check boxes
- Use check boxes when users can select multiple options.
- Use the CheckboxField class to create check boxes. For more information about creating check boxes, see the API reference for the BlackBerry® Java® SDK and the BlackBerry Java Application UI Quick Reference Guide.
- Do not start an action when users select a check box. For example, do not open a new screen.
- Align check boxes vertically.
- Group and order check boxes logically (for example, group related options together or include the most common options first). Avoid ordering check boxes alphabetically; alphabetical order is language specific.
Guidelines for labels
- Use clear, concise labels. Verify that the label clearly describes what occurs when users select the check box.
- Use positive labels where possible. For example, if users have the option of turning on or turning off a feature, use "turn on" instead of "turn off" in the label.
- Place labels on the right side of check boxes. On Option screens, place labels on the left side of check boxes.
- Use sentence case capitalization.
- Punctuate labels for check boxes with a colon (:).
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Choice fields