[Interest] iOS QGeoPositionInfoSource updateInterval

[maitai]

Ok, thanks,

I think at least this should be written somewhere in the documentation.

Best regards,

Philippe

Le 02-11-2021 11:06, Ivan Solovev a écrit :

> Hi Philippe,
> 
> As far as I can tell, the problem is that CLLocationManager class does 
> not have any API to control update frequency. It allows to adjust the 
> desired accuracy instead, which is hardcoded to kCLLocationAccuracyBest 
> for now [0].
> There is a https://bugreports.qt.io/browse/QTBUG-93860 [1] which 
> suggests providing ways to control this parameter via public API in Qt.
> 
> [0] 
> https://code.qt.io/cgit/qt/qtlocation.git/tree/src/plugins/position/corelocation/qgeopositioninfosource_cl.mm?h=5.15.2#n198
> 
> Best regards,
> 
> Ivan Solovev
> Senior Software Engineer
> 
> The Qt Company
> Erich-Thilo-Str. 10 12489
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> 
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> -------------------------
> 
> From: Interest <interest-bounces at qt-project.org> on behalf of maitai 
> <maitai at virtual-winds.org>
> Sent: Saturday, October 30, 2021 7:23 PM
> To: Interest at qt-project.org <Interest at qt-project.org>
> Subject: [Interest] iOS QGeoPositionInfoSource updateInterval
> 
> Hi all,
> 
> It seems to me that QGeoPositionInfoSource::setUpdateInterval on iOS
> does nothing, whatever I set I am still receiving a position update
> around every second.
> 
> I want to use a longer interval when in background, in order not to
> drain the battery. But even in foreground I cannot change the frequency
> of position updates.
> 
> Is it a bug or I am missing some subtleties?
> 
> Using qt 5.15.2 and iOS 14.
> 
> Thanks
> Philippe Lelong
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> Interest at qt-project.org
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Links:
------
[1] https://bugreports.qt.io/browse/QTBUG-93860
[2] http://www.qt.io
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