AccelerometerAPI

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Please include in the article which platforms are able to run this code example.

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Article

Created: Diego Soares Lopes (09 Feb 2009)

Last edited: hamishwillee (20 Oct 2011)

The AccelerometerAPI was developed to facilitate access to acceleromenter sensor of Symbian OS devices, without the Symbian/C++ code conventions. It's very useful for Qt and Open C/C++ programmers.

Header

 //AccelerometerApi header
#include "AccelerometerApiIntf.h"
 
class Example: public AccelerometerObserver
  {
	public:
 
	/**
	 * C++ default constructor
	 */
	Example();
 
	/**
         * Example virtual destructor
	 */
	virtual ~Example();
 
	/**
	 * callback function for receiving data events,
         * Inherited from AccelerometerObserver interface
         */
	void accelInfoUpdater(AccelerationInfo aAcelInfo,
                              SensorInfo aSensorInfo);
 
	private: //ATRIBUTES
 
        AccelerometerApi* iSensorApi;  //AccelerometerApi pointer thats provide
                                       //an access to Accelerometer
 
};

Source

//CPP FILE
 
//Example header file
#include "Example.h" 
 
Example::Example()
{
     	vector sensorInfoArray;
 
        /**
         * static function that find the availble sensors in device
         */
	AccelerometerApi::findSensors(sensorInfoArray);
 
   //Test if exist an available sensor in sensorInfoArray
	if(sensorInfoArray.size() == 0)
		{
                 //Creating iSensorApi with one sensor from sensorInfoArray
		     iSensorApi->create(sensorInfoArray[1]);
                 //Using setDataObserver to register a newObserver
                 //that colect data from sensors.
		     iSensorApi->setDataObserver(this);
		}
}
 
Example::~Example()
{
      if(iSensorApi)
         {
               delete iSensorApi; //delete iSensorApi pointer
               iSensorApi = NULL;
         }
}