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<concept id="GUID-7BFEEDF7-3DB8-42FF-9D7A-F98E536F7686" xml:lang="en"><title>Sensor

interaction</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<section id="GUID-27524BA1-FE0E-4906-8A73-C2F8B4B5BC6C"> <p>Devices based

on the Symbian platform support extendable Sensor framework. The supported

sensors include accelerometer sensor, which is used for example for sensing

device orientation (landscape/portrait and screen down/screen up) and short

tapping on the device with your finger.  </p> <p>With the accelerometer sensor,

there are three types of interaction that can be achieved:</p><ol>

<li id="GUID-E30828C6-4EA8-49B7-BF00-ADC1D132BBFB"><p>Short tapping the device

by finger to perform a given function in set events. Short tapping the device

interaction is not recommended for touch devices; the user may unintentionally

tap the device on the touch area, and trigger controls by mistake.</p></li>

<li id="GUID-5700ECF7-40ED-4ECE-ABB5-3C2E93173871"><p>Changing the device's

orientation from portrait to landscape and back.</p></li>

<li id="GUID-7233626B-2234-44EB-9E64-CB2D787C6CC2"><p>Changing the device

orientation from screen down (for example, on a table) to screen up and back

to perform a given function in set events (for example, silencing an incoming

call).</p></li>

</ol><p>In effect, the system is capable of sensing any of these interaction

methods in the events where sensors can be used. </p><p>The supported sensor

interactions are configurable per device. Also, the user can be provided with

an option to set desired interactions. For example, it is possible to set

methods 1 and 3 for the 'Silence incoming call' event. The settings are available

in Control Panel.</p><note>When designing an application which uses the sensors,

take into account that the users may switch the use of sensors and display

orientation control off in the Control Panel. </note><p>A tap on the device

produces tactile (vibrating) feedback to reinforce and acknowledge that the

interaction has been successful.</p><p>As the Sensor framework is extendable,

devices can have different configurations for sensors.  For instance, some

devices may have a magnetometer sensors included, which could be then used,

for example, as a compass on location-based services.</p><p>For more information,

see <xref href="GUID-AE979B97-5610-42F3-99A7-5A3D66D3C2E6.dita">Sensor interaction</xref>.</p> 

   </section>