Mobile and Embedded

I had a similar problem when signing an android APK file, in the end I choose a "simpler" password for the keystore and it worked, so I guess there are problems with some special chars in the password.. not sure but it fixed it for me.

I believe (iOS or Android) simulators or emulators do not simulate or emulate Qt Sensors completely. Although you may detect them, their implemented backends cannot produce real data. For example, on iOS simulator, Accelerometer sensor is detected and can be started by code, but produces no data. For testing Qt Sensors, one must do it in real devices.

Hi, One thing you can do is check the "bug report system":http://bugreports.qt-project.org to see if it's something known. You can also try the Qt Creator 3.1 RC1 to see if it works better

Thanks for timday . I searched in website,and put my data files into sdcard .I set the data path as "./mnt/sdcard",that takes effects.

Personally I have not succeeded in cross-compiling on windows for a linux platform. Partly, because I had other issues which are already a problem under linux. Nevertheless, you might be interested in this post on "Tool definition for linux cross-compilation on windows":http://qt-project.org/forums/viewthread/37298/ I have added code tags to your post above. Please check "forum rules on how to do next time.":http://qt-project.org/wiki/ForumHelp#e3f82045ad0f480d3fb9e0ac2d58fb01

can you provide some screenshots? In most cases the alignment will be different because of the layout container and smaller spaces on mobile phones it might not fit on the screen or I don't know with any specifics. My apps look exactly the same on all devices, so I have no idea.

Hi, to be honest I can't see any difference but the photos are very bad, can't you do digital screenshots from the device itself? But the pictures look identical to me..

I see. But I'm really curious about why would anyone need that, since Qt framework is not supported on PIC 18 MCUs (low-end 8 bit microcontrollers with a maximum 4096 bytes of RAM for data and 128 Kbytes of flash for program). Qt Creator is excellent for designing Qt Widgets and QML Applications targeting high-end processors. Aside from that, it's just another IDE. I see no benefits on not using one of IDEs provided by Microchip in this case. Anyway, I wish good luck to anyone trying that. I would be gladly surprised seeing that this is possible and beneficial.

I think they are just using the default math functions, you can just look at the source code and see for yourself :) e.g. if you installed it the source code is available at Qt/5.2.1/Src/qtbase/src/gui/math3d @ void QVector3D::normalize() { // Need some extra precision if the length is very small. double len = double(xp) * double(xp) + double(yp) * double(yp) + double(zp) * double(zp); if (qFuzzyIsNull(len - 1.0f) || qFuzzyIsNull(len)) return; len = sqrt(len); xp = float(double(xp) / len); yp = float(double(yp) / len); zp = float(double(zp) / len); } @ just using the default sqrt form math.h

Hey, if you want to disable certain keys for your input you could simply use an input mask or validator on the QLineEdit? check the doc for QLineEdit ::setInputMask and QLineEdit::setValidator key press events should be delivered to the widget that has the active focus, so I don't know why that ins't working like you want it to be?

For the sake of completeness, it seems like FontLoader is fully implemented for iOS as of the current "Qt 5.3 beta":http://blog.qt.digia.com/blog/2014/03/25/qt-5-3-beta-released/, so there are no more hacks required. ;) Cheers, Alex

Hello all, Is they anyway to put the libqgif.so in a different directory than in <executable dir>/imageformats/libqgif.so ? How can we do that? Thanks in advance

It seems to be unrelated to gesture recognition. I now created a bug report for this: https://bugreports.qt-project.org/browse/QTBUG-38013

Thanks. Yes, I found these source code.

I got the same error. why ? how to fix it?