November 2008
Intermediate to advanced
272 pages
9h 16m
English
Content preview from Designing Gestural Interfaces
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SHAKE TO CHANGE
WHAT
Rapidly moving an object back and forth changes its state or triggers an action.
USE WHEN
Use Shake to Change for very simple actions that have little nuance, usually with objects that can be held in the hand easily.
WHY
This is a simple action that most people can perform. Also, it has an element of fun and delight to it.
HOW
Shake to Change requires an accelerometer to detect motion. When enough vibration is detected, the action triggers.
EXAMPLES
Figure 4-22. You turn on an Imageo Candle Light by shaking it. Courtesy Philips Lighting.
Figure 4-23. The Sony Ericsson W910i features a three-axis accelerometer, which is used in its shake control feature to change song tracks. Users just shake the phone to change the track being played. Courtesy Sony Ericsson.
Figure 4-24. The Sansa Shaker lets users shake the device to jump to the next song. Courtesy SanDisk.
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