Blackberry Smartphones Specifications download pdf (Page 66)

Type of picker Description

Best practice: Implementing pickers

Use the FilePicker, LocationPicker, and DateTimePicker classes to create pickers. For more information about

creating pickers, see the API reference for the BlackBerry® Java® SDK and the BlackBerry Java Application UI Quick Reference

Guide.

Guidelines for file pickers

• Specify a specific view to display the types of files that match the user's goal. For example, if a user is browsing pictures,

display pictures in the file picker.

• Allow users to start browsing from an appropriate default folder if possible.

Spin boxes

Use a spin box to allow users to choose an item from an ordered list easily. For example, use spin boxes to allow users to find a

number or to change the day of the week.

Action BlackBerry devices with a trackpad only

BlackBerry devices with a touch screen

and a trackpad

Find an item in the list. Move a finger vertically on the trackpad.

• Drag a finger vertically on the screen.

• Swipe up or down on the screen.

• Move a finger vertically on the

trackpad.

UI Guidelines

Choice fields

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Blackberry Smartphones Specifications Page 66