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UI Guidelines

Make your application touch-centric

A touch-centric experience on the BlackBerry PlayBook tablet means that users interact with content by using gestural

interactions, such as swiping, instead of "poking" UI components. Avoid cluttering the screen with UI components and

design your application to take advantage of the gestural interactions. For example, allow users to zoom in to a picture by

using the pinch out gesture instead of tapping a button to incrementally zoom in.

Bezel gestures

The BlackBerry PlayBook tablet supports gestures from the device bezel (the frame around the display area of the screen).

The "swipe from the bottom of the screen" gesture is a core interaction, which displays the application list. If the

application list is displayed already, this gesture displays the open but minimized applications. There are other bezel

gestures that are available for you to use as shortcuts to features in your applications. These gestures include the following:

Gesture

Swipe from the top of the screen

Swipe from the left or right side of the screen

Swipe from the top corners of the screen

Swipe from the bottom left corner of the screen

Interactions with content on the screen

If they apply to your application, you can implement the following interactions to allow users to directly manipulate content

on the screen.

Gesture

Tap

Double tap

Drag or swipe

Expected result

Displays a menu for settings or options

Switches applications

Displays application notifications and status indicators

Displays the keyboard

Expected result

This gesture initiates an action. For example, when users tap an

application icon, the corresponding application opens.

This gesture focuses on the targeted area of the screen (for example, by

zooming in or out).

This gesture moves the content on the screen in the direction of the

drag or swipe and at the corresponding rate of speed. For example,

users can move slowly through a list by dragging a finger on the screen,

or they can move quickly through a list by swiping across the screen.

Design principles