Blackberry PlayBook Tablet Ui Manuallines - Страница 22

UI Guidelines

Best practices

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Do not start an action when users select a check box. For example, do not open a new screen on the select action.

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Group and order check boxes logically. For example, group related options together or include the most common

options first.

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Avoid ordering check boxes alphabetically. Alphabetical order is language-specific.

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Use clear, concise labels. Verify that the label clearly describes what occurs when users select the check box.

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Use positive labels where possible. For example, use "Show" instead of "Hide."

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Place labels on the right side of check boxes.

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Use sentence case capitalization for the individual check boxes in a group. Capitalize the first word and any other word

that requires capitalization (such as a proper noun).

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Do not use end punctuation.

Radio buttons

Use radio buttons to indicate a set of mutually exclusive but related choices. Users can select one option in a group. Users

tap a radio button to select or clear it.

Best practices

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Use radio buttons for two or more choices when space is not an issue. If space is limited, consider using a drop-down

list instead.

UI components