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Posts: 53
Registered: ‎09-19-2012
My Device: 9700
My Carrier: China mobile

ProximitySensor never get any reading

The toss game sample can't build in beta3

I built the codes as:


 * ProximitySensor.h

#include <QObject>
#include <QtSensors/QProximitySensor>
#include <QtSensors/QProximityFilter>
#include <QtSensors/QProximityReading>
#include <bb/cascades/Application>
using namespace QtMobility;
class ProximitySensor: public QObject, public QProximityFilter { //
 ;Q_PROPERTY(bool isClose READ isClose NOTIFY proximityChanged)
 ProximitySensor(QObject *parent);
 virtual ~ProximitySensor();
 bool isClose() const;
 void start();
 void stop();
 void proximityChanged();
 bool filter(QProximityReading *reading);
 QProximitySensor m_proximitySensor;
 bool m_isClose;



 * ProximitySensor.cpp

#include "ProximitySensor.h"
#include <QDebug>
using namespace QtMobility;
ProximitySensor:Smiley TongueroximitySensor(QObject *parent) :
    QObject(parent), m_isClose(false){
    if (!m_proximitySensor.connectToBackend()) {
        qDebug() << "Cannot connect to proximity sensor backend!";

ProximitySensor::~ProximitySensor() {
 // TODO Auto-generated destructor stub
bool ProximitySensor::isClose() const {
 return m_isClose;
void ProximitySensor::start(){
void ProximitySensor::stop(){
bool ProximitySensor::filter(QProximityReading *reading) {
 m_isClose = reading->close();
 emit proximityChanged();
 return false;