> Sent: Tuesday, August 11, 2015 at 8:24 AM
From: "Federico Buti" <bacaro...@gmail.com>
To: "interest@qt-project.org" <interest@qt-project.org>
Subject: [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:
...
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.
--------
I've not had any success in iOS or Android. I've got a mobile app that is
supposed to grab a position and it never does. Here's my setup
main.qml:
PositionSource {
id: positionSource
}
Component.onCompleted: {
positionSource.update();
}
later (~90s)... on an event handler:
if (positionSource.valid)
root.location = {lat:
positionSource.position.coordinate.latitude, lon:
positionSource.position.coordinate.longitude};
else
root.location = {lat: null, lon: null};
It never goes valid. One thing to note, is in my work environment, my GPS is
usually on, and has a fix, so it should already be valid.
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