Hi, You could do multiple checks. First, which positioningMethods are available/supported, check the corresponding property. What is the interval set to, if it is too small, you might get a timeout. Does the PositionSource send updateTimeout()?
BR, Maurice Von: interest-bounces+maurice.kalinowski=theqtcompany....@qt-project.org [mailto:interest-bounces+maurice.kalinowski=theqtcompany....@qt-project.org] Im Auftrag von Federico Buti Gesendet: Tuesday, August 11, 2015 2:24 PM An: interest@qt-project.org Betreff: [Interest] Qt positioning Hi list, I was playing around with positioning on Android and I'm not sure if I'm using it properly. I would like to update the position of the cellphone/app ASA the user taps on a button. To achieve this result I've setup my project as follows: 1) added the positioning to the pro: QT += positioning 2) Added the positioning import to the involved QML file: import QtPositioning 5.2 // should/must be "import QtPositioning 5.3" or others? 3) Added permissions to manifest <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> 4) Added the following code: StyledButton { id: mapMarkerButton Layout.alignment: Qt.AlignHCenter Layout.preferredHeight: 120 * Params.scaleFactor Layout.preferredWidth: 120 * Params.scaleFactor sourceUncheckedImage: "qrc:///pics/pin.png" onClicked: { gpsPosition.start() } } PositionSource { id: gpsPosition active: false onPositionChanged: { gpsPosition.st op() var coord = position.coordinate; updateCoordinatesRecord(coord.latitude, coord.longitude) //41.902222, 12.492222) } onSourceErrorChanged: { notify(" ... ") } } The idea was to activate the GPS only when required, update the value (probably with a busy dialog on screen) and deactivate it. I could have used the update() method, I know. Now, if I execute the code on a device with GPS turned off, I've the error "PositionSource.ClosedError". Instead, on the same device with GPS turned on the position is never updated. The same occurs in a newly created project with just this code added. Qt version is 5.5 What am I missing? What am I doing wrong? The default dialog for GPS activation (i.e. the one shown by Googlemaps for instance) is not shown when position acquisition is started? Thanks everyone for your time, F.
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