float hrnow;
int success;

bool checkSupport(sensor_type_e type){
      bool support;
      sensor_is_supported(type,&support);
      return support;
 }

//for heart rate monitor
void sensorEventCallBack(sensor_h sensorHanlder, sensor_event_s *event, void *user_data){
     sensor_type_e type;
     sensor_get_type(sensorHanlder, &type);
     switch (type)
     {
     case SENSOR_HRM:
      dlog_print(DLOG_DEBUG, LOG_TAG, "SENSOR_HRM data: %.2f", event->values[0]);
      hr_now = event->values[0];
      break;
     default:
      dlog_print(DLOG_ERROR, LOG_TAG, "Not an HRM event");
     }
}

void logPrintSensorData(appdata_s *ad){

      if(checkSupport(SENSOR_HRM)){

          sensor_h sensorHandler;
          success = sensor_get_default_sensor(SENSOR_HRM, &sensorHanlder);
//          success = sensor_get_default_sensor_by_uri("http://tizen.org/sensor/healthinfo/human_pedometer", &sensorHandler);
          sensor_listener_h sensorListener;
          sensor_create_listener(sensorHandler,&sensorListener);
          sensor_listener_set_event_cb(sensorListener,1000, sensorEventCallBack, NULL);
          sensor_listener_set_option(sensorListener,SENSOR_OPTION_ALWAYS_ON);
          sensor_listener_start(sensorListener);

           /* Once Task Completed*/
          //sensor_listener_stop(sensorListener);
      }

      else {
          dlog_print(DLOG_ERROR, LOG_TAG, "SENSOR_HRM Not Supported");
      }
 }