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Mobile and Embedded

The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
14.2k Topics 62.6k Posts
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  • Cloud db for mobile app

    cloud mobile
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    guidupasG
    OK JKSH. Thanks
  • <SOLVED> cannot get qpf2 fonts to work with linuxfb platform

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    SGaistS
    Hi, That might be something worth mentioning on the bug report system
  • Generic Linux Device and Beaglebone

    generic linux d beaglebone
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    J
    Hi Pavlya, did you manage to get this working? I have the same problem. I'm using Beaglebone Black running Debian and have Ubuntu 14.04 on my desktop with QT 5.4.1 (x64)(Creator 3.3.1) I can connect from my Desktop using PUTTY or terminal without any problems. BUT I have problems from QT, when I try to Add a kit (Generic Linux Device) it locks when press OK to accept the IP Address and Username etc. This is when it tests the connection to the device. I have reinstalled, I have also tried from another laptop with the same Ubuntu and have the same problems. Any help appreciated. Thanks
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  • QRegExp with QLineEdit

    qregularexpress qlineedit
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    BuleronB
    @Endar I hope this will help you QRegExpValidator* validator = new QRegExpValidator(QRegExp("[A-a-Z-z][A-a-Z-z]\\d{0,2}\\d[A-a-Z-z][A-a-Z-z]")); ui->lineEdit->setValidator(validator);
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    JKSHJ
    Hi, @flashmozzg said: The problem is that MyCustomItem contained property with the same name in itself This is called variable shadowing. this is really counter-intuitive. What if it wasn't my item but someone else's and I didn't know that it had such property? Idieally, that someone else would document all the properties of the component, and you would read the documentation before using their component. But to avoid ambiguities, I suggest always specifying the owner whenever you refer to a property that isn't part of the current component, e.g. MyCustomItem { id: myId visible: parent.isExpanded // other stuff } qt creator could've at least warned about possible ambiguities. That could be a useful feature in Debug mode. You can submit a feature request to https://bugreports.qt.io/ if you wish. I don't want this to be enabled in Release mode though, because it would degrade the performance of the QML engine.
  • [Solved]Develop complicated app on mobile by QtQuick2.0

    c++ qml qtquick
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    S
    Thanks for your reply, nice to see a real life example which could work on android and ios(do you mind give us the link of ios version?). After some experiments, I decided to use the QTableView instead of the QtQuick control, the TableView of QtQuick eat too much memory.
  • Security warning from Google

    android openssl
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    Q
    I was able to upgrade the version of OpenSSL by using the Qt MaintenanceTool.exe and updating everything to the latest. Have yet to submit to Google, but I think it may be the solution.
  • Qt 5.4 Cross Compile for Raspberry Pi 2

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    L
    I had the same problem on Cubieboard2. The only solution that worked for me was this one: http://www.decom.ufop.br/imobilis/?p=4367 Straight to the point: Open qtbase/src/plugins/platforms/qeglfshooks_stub.cpp Find EGLNativeWindowType QEglFSHooks::createNativeWindow Change it to: EGLNativeWindowType QEglFSHooks::createNativeWindow(QPlatformWindow *platformWindow, const QSize &size, const QSurfaceFormat &format) { Q_UNUSED(platformWindow); Q_UNUSED(size); Q_UNUSED(format); //return 0; static struct mali_native_window native_window = { .width = (short unsigned int)size.width(), .height = (short unsigned int)size.height(), }; return &native_window; }
  • EGLFS Platform Performance on Cubieboard2

    eglfs cubieboard
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  • Qt on Android, problem with textarea and text.

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  • QopenglWidget paintgl issue on imx6

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  • Cannot play .mp4 videos on IMX6 linux_bsp image

    imx6 linuxbsp videos gstreamer
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    A
    This maybe due to the fact that our IMX6 board does not have the plugins/mediaservice particularly the libgstmediaplayer.so. Does anyone know how to create this library? And which directory in the IMX6 do I put this if I have successfully cross compiled it?
  • How can I cross-compile Qt 5.x?

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    S
    @koahnig Thank you for reply.
  • Qt 5.4.1 - BlackBerry Z 10

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  • QML Menu and EGLFS causes SIGABRT error

    qml qt5 eglfs menu
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  • Shell command on iOS (system command)

    ios shell system command
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    shavS
    Hi, As I know you can't execute any commands or shell-script on the iOS from you application on official devices. Because security policy doesn't allowing you to do this. Application can't work with any datas not from application folder. If you need something to be execute you can try to copy shell script into application folder and then execute it. Also I recommend you read Apple documentation about certificate and how it works on iOS platform. In general, when you build your app and install it to official devices your application must be subscribe using special certificate which you need to receive from Apple (Apple iOS Developer program). If your application will not be subscribe with this certificate other people can't install your application and your application not be approve in App Store. Other link: App Store Review Guidelines P.S. From your post I understand you are using jailbreak device, right? If so I recommend to you don't use it. Because on the official device it couldn't work. P.S.S. iOS and OS X application can't execute any third-part processes and script. Because certificate will block all third-part calls. But if you don't need to post you app to App Store you could skip Code sign of your app (I've use it only on OS X, on iOS you need special certificate).
  • How Export .apk file ?

    apk android
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    AFRAA
    @alexvplay thank you :)