Getting current location GPS

wilson_chan

Hi all,

I’m writing an application that needs to get the current location of the user using QtMobility and PositionSource QML element. The code is working well with our testing Nokia 700 device; however, seems to be unable to get the current location on Symbian devices. I’ve tried with a very simple example on the documentation like:

main.qml
@import QtQuick 1.1
import QtMobility.location 1.2

Rectangle {
id:page
width : 250
height: 350
PositionSource {
id: positionSource
updateInterval: 1000
active: true
// nmeaSource: "nmealog.txt"
}
Column {
Text {text: "<==== PositionSource ====>"}
Text {text: "positioningMethod: " + printableMethod(positionSource.positioningMethod)}
Text {text: "nmeaSource: " + positionSource.nmeaSource}
Text {text: "updateInterval: " + positionSource.updateInterval}
Text {text: "active: " + positionSource.active}
Text {text: "<==== Position ====>"}
Text {text: "latitude: " + positionSource.position.coordinate.latitude}
Text {text: "longitude: " + positionSource.position.coordinate.longitude}
Text {text: "altitude: " + positionSource.position.coordinate.altitude}
Text {text: "speed: " + positionSource.position.speed}
Text {text: "timestamp: " + positionSource.position.timestamp}
Text {text: "altitudeValid: " + positionSource.position.altitudeValid}
Text {text: "longitudeValid: " + positionSource.position.longitudeValid}

    Text {text: "latitudeValid: "  + positionSource.position.latitudeValid}


    Text {text: "speedValid: "     + positionSource.position.speedValid}
}
function printableMethod(method) {
    if (method == PositionSource.SatellitePositioningMethod)
        return "Satellite";
    else if (method == PositionSource.NoPositioningMethod)
        return "Not available"
    else if (method == PositionSource.NonSatellitePositioningMethod)
        return "Non-satellite"
    else if (method == PositionSource.AllPositioningMethods)
        return "All/multiple"
    return "source error";
}

}@

untitled.pro
@

Add more folders to ship with the application, here

folder_01.source = qml/bcard
folder_01.target = qml
DEPLOYMENTFOLDERS = folder_01

Additional import path used to resolve QML modules in Creator's code model

QML_IMPORT_PATH =

symbian:TARGET.UID3 = 0xE63F200B

Smart Installer package's UID

This UID is from the protected range and therefore the package will

fail to install if self-signed. By default qmake uses the unprotected

range value if unprotected UID is defined for the application and

0x2002CCCF value if protected UID is given to the application

#symbian:DEPLOYMENT.installer_header = 0x2002CCCF

Allow network access on Symbian

#symbian:TARGET.CAPABILITY += NetworkServices
symbian:TARGET.CAPABILITY += NetworkServices Location

If your application uses the Qt Mobility libraries, uncomment the following

lines and add the respective components to the MOBILITY variable.

CONFIG += mobility
MOBILITY += location

Speed up launching on MeeGo/Harmattan when using applauncherd daemon

CONFIG += qdeclarative-boostable

Add dependency to Symbian components

CONFIG += qt-components

The .cpp file which was generated for your project. Feel free to hack it.

SOURCES += main.cpp

Please do not modify the following two lines. Required for deployment.

include(qmlapplicationviewer/qmlapplicationviewer.pri)
qtcAddDeployment()
@

I can see the GPS symbol is activated on the device;
However the data getting is as below:

<====PositionSource====>
positioningMethod :Satellite
nmeaSource:
updateInterval:1000
active:true
<====Position====>
latitude:NaN
longitude:NaN
altitude:NaN
speed:-1
timestamp: Invalid Date
altitudeValid: false
longitudeValid: false
latitudeValid: false
speedValid: false

Have someone met this issue before? May I know how to fix it and get all the data correctly?
Thank you.

Thanks,