C++ class destructor not called on request nearby

I started playing with waterfall and C++ development but im having a problem where I can link my class to the qml and use breast but firm request the something on my class hangs the request and its icon in the emulator will slightly transparent and can no longer be clicked.

It's the call to add it to the qml

File: Applicationui.cpp

ApplicationUI::ApplicationUI(bb::cascades::Application *app): QObject(app){ // create scene document from main.qml asset // set parent to created document to ensure it exists for the whole application lifetime QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);

//My classGpsCommunicator* gps = new GpsCommunicator();

//Add the Classqml->setContextProperty("_gps",gps);

// create root object for the UI AbstractPane *root = qml->createRootObject();

// set created root object as a scene app->setScene(root);
}

Here is the class.hpp


class GpsCommunicator : public QObject {
Q_OBJECT

Q_PROPERTY(double latitude READ latitude) Q_PROPERTY(double longitude READ longitude) Q_PROPERTY(double accuracy READ accuracy) Q_PROPERTY(double altitude READ altitude) Q_PROPERTY(double heading READ heading) Q_PROPERTY(double satellites READ satellites) Q_PROPERTY(double speed READ speed)
Q_PROPERTY(bool isRegistered READ isRegistered) Q_PROPERTY(bool isAltitudeValid READ isAltitudeValid) Q_PROPERTY(bool isAccuracyValid READ isAccuracyValid) Q_PROPERTY(bool isHeadingValid READ isHeadingValid) Q_PROPERTY(bool isSpeedValid READ isSpeedValid)
public: GpsCommunicator(QObject *parent = 0); virtual ~GpsCommunicator();
//Latitude Property double latitude();
//Latitude Property double longitude();
//Accuracy Property double accuracy(); bool isAccuracyValid();
//Altitude Property double altitude(); bool isAltitudeValid();
//Heading Property double heading(); bool isHeadingValid();
//Speed Property double speed(); bool isSpeedValid();
//Number of Satellite Property double satellites();
//Registered successfully to geolocation events bool isRegistered();
Q_INVOKABLE void StartPollTimer(int i = 0); Q_INVOKABLE void StopPollTimer();
signals:

private:
//Bool to track if this class is registered to receive geo-location events bool m_isRegistered;
double m_latitude; double m_longitude; double m_accuracy; bool m_accuracy_valid; double m_altitude; bool m_altitude_valid; double m_altitude_accuracy; bool m_altitude_accuracy_valid; double m_heading; bool m_heading_valid; double m_speed; bool m_speed_valid; double m_num_satellites; bool m_num_satellites_valid;
void InitializeGps(); void InitializeCommunicator();
//Poll timer QTimer *pollTimer;

public slots:
void CheckForGPSEvent();
};

Here is the .cpp for her


GpsCommunicator::GpsCommunicator(QObject *parent): QObject(parent) { //Start up sequence this->InitializeCommunicator(); this->InitializeGps();}
void GpsCommunicator::InitializeCommunicator() { this->m_isRegistered = false;}
GpsCommunicator::~GpsCommunicator() { // TODO Auto-generated destructor stub this->StopPollTimer(); delete this->pollTimer; geolocation_stop_events(0); bps_shutdown();}
double GpsCommunicator::latitude() { return this->m_latitude;}
double GpsCommunicator::speed() { return this->m_speed;}
double GpsCommunicator::altitude() { return this->m_altitude;}
double GpsCommunicator::longitude() { return this->m_longitude;}
double GpsCommunicator::accuracy() { return this->m_accuracy;}
double GpsCommunicator::heading() { return this->m_heading;}
double GpsCommunicator::satellites() { return this->m_num_satellites;}
bool GpsCommunicator::isRegistered(){ return this->m_isRegistered;}
bool GpsCommunicator::isSpeedValid() { return this->m_speed_valid;}
bool GpsCommunicator::isAccuracyValid() { return this->m_accuracy_valid;}
bool GpsCommunicator::isAltitudeValid() { return this->m_altitude_valid;}
bool GpsCommunicator::isHeadingValid() { return this->m_heading_valid;}
void GpsCommunicator::StartPollTimer(int i) { this->pollTimer->start(i);}
void GpsCommunicator::StopPollTimer() { this->pollTimer->stop();}
void GpsCommunicator::InitializeGps() {
if( bps_initialize() != BPS_FAILURE) { if ( geolocation_request_events( 0 ) != BPS_SUCCESS ) { //Report that the initialize failed this->m_isRegistered = false; //emit this->registeredChanged(this->m_isRegistered); } else { geolocation_set_period(1);
//Update that the communicator is now registered and emit the signal this->m_isRegistered = true; //emit this->registeredChanged(this->m_isRegistered);
//Create the timer instance this->pollTimer = new QTimer();
//Connect it to the polling function this->connect(this->pollTimer, SIGNAL(timeout()), this, SLOT(CheckForGPSEvent())); this->StartPollTimer(100); } }}
void GpsCommunicator::CheckForGPSEvent() {
bps_event_t *event = NULL; bps_get_event(&event, 100); // -1 means that the function waits // for an event before returning if (event) {
if (bps_event_get_domain(event) == geolocation_get_domain()) {
if (event == NULL || bps_event_get_code(event) != GEOLOCATION_INFO) { return; }
// TODO: change this so the emit is only called if the information is new
this->m_latitude = geolocation_event_get_latitude(event); //emit this->latitudeChanged(this->m_latitude);
this->m_longitude = geolocation_event_get_longitude(event); //emit this->longitudeChanged(this->m_longitude);
this->m_accuracy = geolocation_event_get_accuracy(event); //emit this->accuracyChanged(this->m_accuracy);
this->m_altitude = geolocation_event_get_altitude(event); //emit this->altitudeChanged(this->m_altitude);
this->m_altitude_valid = geolocation_event_is_altitude_valid(event);
this->m_altitude_accuracy = geolocation_event_get_altitude_accuracy(event);
this->m_altitude_accuracy_valid = geolocation_event_is_altitude_accuracy_valid(event);
this->m_heading = geolocation_event_get_heading(event); //emit this->headingChanged(this->m_heading);
this->m_heading_valid = geolocation_event_is_heading_valid(event);
this->m_speed = geolocation_event_get_speed(event); //emit this->speedChanged(this->m_speed);
this->m_speed_valid = geolocation_event_is_speed_valid(event);
this->m_num_satellites = geolocation_event_get_num_satellites_used(event); //emit this->satellitesChanged(this->m_num_satellites);
this->m_num_satellites_valid = geolocation_event_is_num_satellites_valid(event); } }
return;}

I was checking to see if the deconstructor was called, but it doesn't seem to be. So I think it might be the QTimer not cleaned but I don't know how I get it to call on family members since I thought that once I signed with qml my QObject class would be deconstructed with other resources in a certain order.

Thanks in advance for any help

Do not call bps_get_event from an application of stunts that you might fly the main event loop events.  Rather implement AbstractBpsEventHandler to the BPS events delivered on the thread of your event.

Tags: BlackBerry Developers

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