QCompass on iOS using Qt 5.2.0-beta1
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Did anyone succeed on accessing the Compass sensor of an iPhone using QCompass and QCompassFilter classes with Qt 5.2.0-beta1 version? I've tried it through several different ways, with no success. I'm using XCode 4.6.3 and iOS 6.0.1.
The exact issue is that "bool QSensor::start()" method always returns "false" and then nothing happens.
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According to the "Compatibility Map" of Qt 5.2 Sensors, the following features are supposed to work on iOS : Accelerometer, Compass, Gyroscope, Magnetometer and Proximity Sensors.
http://qt.apidoc.info/5.2.0-beta1/qtsensors/compatmap.html
In my tests, neither Accelerometer nor Compass are working.
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Hi and welcome to devnet,
Did you test it on the simulator or a real device ? AFAIK, the simulator doesn't provide everything a device does.
In the second case, you should check the "bug report system":http://bugreports.qt-project.org To see whether it something known. If not you can open a new report providing a minimal compilable example that shows the bug.
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Thank you. I actually tested on a real device (iPhone 4s / iOS 6.0.1). However, it seems that no sensor works correctly (QSensor::start() always returns false). I'll check the "bug report system".
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Definitely, QSensor class is not working yet for iOS devices (with Qt 5.2.0-beta1) version. I've tried several simple test Apps for instantiating and detecting sensors on several devices (iPhone and iPad), with different versions of XCode (4.6.3 and 5.0.1) and iOS (iOS5 , iOS6 and iOS7).
QSensor::sensorTypes() should return a list of available sensors but, instead, returns an empty list. As there aren't sensors available, QSensor::start() always returns false (failing to start any sensor).
I hope we all have a better luck with the final release of Qt 5.2.0.
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You should rather ask the status on the interest mailing list, during the DD in Berlin there was a demonstration using QtQuick and the accelerometers
so there should be something
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Any idea if this has been fixed? I'm using 5.2.1 and am seeing the same issue.
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To make sensors work with iOS Apps, just make sure the following statements are included in your .PRO files :
QT += sensors
QTPLUGIN += qtsensors_ios
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I think it is the same of this one:
https://bugreports.qt-project.org/browse/QTBUG-35277
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Thanks cezmen, that's what I needed.
