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UI Guidelines
•
Multi-touch capacitive screen that supports up to four simultaneous touch points
•
Landscape-oriented display with support for portrait display
•
On-screen virtual keyboard and optional external keyboard
Display specifications
Design the UI for your application to be independent of screen size. If future versions of the BlackBerry PlayBook tablet
have different screen sizes, you can avoid rework by designing applications that are flexible enough to fit a range of screen
sizes.
Screen resolution
1024 x 600 pixels
Related information
Make your application touch-centric,
Screen design,
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Constraints of designing for mobile devices
Strive to provide a balance between the best possible user experience, a long battery life, and efficient connections to the
wireless network. When you design your application, consider the differences between mobile devices and computers.
Mobile devices have the following characteristics:
Characteristic
Smaller screen size
One screen appears at a time
Shorter battery life
Wireless network connections
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Aspect ratio
17:10
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Guideline
Stay focused on the user's immediate task. Display only the information that
users need at any given moment. For example, a customer relationship
management system can provide a massive amount of information, but users
only require a small amount of that information at one time. Design the UI so
that users can perform tasks easily and access information quickly.
Use a single screen if possible. If your application requires multiple screens to
be open at the same time, use a split screen or rethink the flow of your
application.
Try to handle data transmission efficiently. The less often the device needs to
transmit data, the longer the battery lasts.
Try to simplify how your application creates network connections. Compared
with standard LANs, longer latency periods that are inherent in some wireless
network connections can influence how quickly users receive information
that is sent over the network.
Pixel density
170 pixels per inch (66.7
px/cm)
Designing applications
Dot pitch
0.15 mm