Running Qt based android application on BlackBerry OS?

[Clever&Smart]

Hello,

I am developing an application for mobile devices. I use QML for the user interface. The business logic is done in C++. So far I have managed to run the application on android, iOS & windows devices using Qt 5.5.0.
Now I am facing BlackBerry OS 10. I found that BlackBerry OS is capable of running android apps. So I gave it a try and installed the android version on a BlackBerry device.
For my own surprise the businnes logic seems to work properly. Unfortunately the user interface is not shown. It seems that the application hangs up whenever

m_quickView->setSource(QUrl(QMLPath));

m_quickView->setSource(QUrl(QMLPath));

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is called.

Has anyone around here ever tried to run a Qt based android application on a BlackBerry device?

[anda_skoa]

Maybe the emulator needs to be told somehow to enable OpenGL for the app?

Could you not alternatively build the app natively?

Cheers,
_

[Clever&Smart]

I have also tried to build Qt 5.5 for BlackBerry but I failed because I also need some C++11 features that seems to be incompatible with the BlackBerry NDK supplied by RIM.
Do you mean this approach, anda_skoa?
Building the application without Qt is not an option.

[anda_skoa]

Yes, I meant building natively as BB10 is directly supported by Qt.
(BB10 even uses Qt4 as its main application stack)

Which version of GCC is being used by the NDK and which version has the features you require?

Cheers,
_

[Clever&Smart]

The NDK comes with two versions, 4.6.3 & 4.8.3. Version 4.6.3 is used by default.
Furthermore, the default setup links against a Dinkumware C++ library (libcpp.so) which seems to be out-of-date.
Unfortunately I have not been able to modify the default setup yet to use the newer compiler version.

[anda_skoa]

Hmm, too bad.
GCC 4.8 is usually pretty good regarding C++11 support.

Cheers,
_

[Clever&Smart]

I made it

I found some leading help at

https://supportforums.blackberry.com...0/td-p/2985632

One has to update

[QT_INSTALLDIR]\qtbase\mkspecs\common\qcc-base-qnx-armle-v7.conf

[QT_INSTALLDIR]\qtbase\mkspecs\common\qcc-base-qnx-armle-v7.conf

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with

QMAKE_CC                = qcc -V4.8.3,gcc_ntoarmv7le_gpp -fuse-ld=bfd
QMAKE_CXX               = qcc -V4.8.3,gcc_ntoarmv7le_gpp -fuse-ld=bfd

QMAKE_CC                = qcc -V4.8.3,gcc_ntoarmv7le_gpp -fuse-ld=bfd
QMAKE_CXX               = qcc -V4.8.3,gcc_ntoarmv7le_gpp -fuse-ld=bfd

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May this post help others.