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Mobile and Embedded

The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
14.2k Topics 62.7k Posts
  • How to get a Device Token for Push Notification

    Unsolved device token mobile
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    W
    @mcosta Thanks a lot! I will try to find Native API. ;)
  • Building Qt 5.5. apps for iOS 9?

    ios qt5
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    F
    Hello, I had the same issue. I modified my .pro with this two lines : @ osx: QMAKE_MAC_SDK = macosx10.11 ios: QMAKE_MAC_SDK = iphoneos9.1 @ This works for me, and I didn't change Qt5.5.1 settings. Hope it helps. Best Regards, Fabien.
  • 0 Votes
    4 Posts
    3k Views
    V
    There already a camera application(qtcam) integrated qtquick and v4l2, please try clone the source from the below link, https://github.com/econsysqtcam/qtcam.git Application available in launchpad also for ubuntu 12.04 & 14.04
  • Qt Creator and iOS

    Solved qt creator ios
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    L
    I'm using Qt 5.5.0 with Qt Creator 3.4.2. Maybe that's why, but I've already came to terms with using XCode. It works fine. Thank you.
  • There is bug

    Unsolved
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    2 Posts
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    JKSHJ
    Hi @Ridat, thank you for finding a fix to the bug. Please post this to https://bugreports.qt.io/
  • Beaglebone black Touchscreen Issues

    Unsolved
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    1 Posts
    537 Views
    No one has replied
  • getting rid of qt versions prior to v.5

    Unsolved
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    SGaistS
    So you have about 53GB free, that should be more than enough
  • Ini file gets empty : QSettings problem ?

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    Quite late but somthing could help, From past 3 days I was facing the same issue. The problem is qsettings keeps writing file in event loop. Hence this file will be always be present in ur kernel buffer. After writing changes in the next event loop it wll again put file in kernel buffer. And whn ur app crash or power off with out writing buffer kernel makes tht file zero byte. Some system providers will have capacitors to keep system up for tiny amount of time so tht kernel can clear buffer but most small embedded wil not have tht facility.. I actually fixed this problem by using normal qfile read and write function. after write flush i do QProcess::execute("sync"). This will clear buffer. hence ur file is not more in kernel buffer. And safe. But in this case u can lost file whn sync is going on and ur power goes off.. Its not atomic.
  • no service found for - org.qt-project.qt.mediaplayer

    Solved embedded linux qt5.5 media player multimedia
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    ILI
    @raf924 Hi, yes i already install libgstreamer, it is look like that my problem was that the plugins for the video should be located under lib/mediaservise and not flat under lib/ But now, unsurprisely, I have new issue that crushes my target Linux: Inconsistency detected by ld.so dl-open.c 271 dl_open_worker... I now will take a look and try to resolve it. Thanks a lot for your time, I really appreciate that. IL
  • 0 Votes
    10 Posts
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    M
    @jsulm I add a button even as below. void Dialog::on_pushButton_clicked() { SubView *QQ=new SubView(this); QQ->setModal(true); QQ->setEnabled(true); QQ->showNormal(); } Then, I put a QEditline on the subview . Of course, subview is a class inherited from the dialog. This is a very simple code. Or You can try this https://github.com/mkdh/QEditlineOnNewWidgetiOS
  • Qt (Quick) on Wayland?

    Unsolved
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    4 Posts
    889 Views
    SGaistS
    I've update the links, the code is now available at code.qt.io
  • Qt Creator - QApplication: No such file or directory

    qt creator autocomplete
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    11 Posts
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    SGaistS
    AFAIK, it should use the prefix set at compilation time to search that
  • qt5.5 Qt3D rendering & crash problems on Nvidia K1

    Unsolved qt5.5
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    SGaistS
    Then I'd recommend checking the bug report system to see if it's something known. If not please consider opening a new report providing a minimal compilable example showing that behavior.
  • 0 Votes
    3 Posts
    2k Views
    McLionM
    I solved this. I moved everything related to the serial port into a separate class SerialWorker and moved it to a separate thread. QThread* serialthread = new QThread; SerialWorker* serialworker = new SerialWorker(); serialworker->moveToThread(serialthread); connect(serialthread, SIGNAL(started()), serialworker, SLOT(InitSerialPort())); serialthread->start(); connect(serialworker, SIGNAL(NewProto(QByteArray)), this, SLOT(ProtocolInterpreter(QByteArray))); connect(this, SIGNAL(SendRS(QByteArray)) , serialworker, SLOT(writeData(QByteArray))); This works as supposed. Serial port is now more or less very responsive. WebKit is still blocking the GUI thread sometimes but thats not as much an issue as the serial port not responding.
  • Problem with emulator on windows

    Unsolved android emulato emulator qtquick.control
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    1 Posts
    745 Views
    No one has replied
  • Android QML do not display Buttons

    Unsolved
    3
    0 Votes
    3 Posts
    771 Views
    M
    Hi dynamo72, Thank you for your reply, it was of great help. Widget gallery examples are working, QT web view example(minibrowser) is also running, its open website but it yet does not show toolbar and buttons. I m trying to create web view on android using QT web view. Is there any other functionality I can use to create the same? Can you guide me a little through the same?
  • QT Gui application segmentation fault on exit

    Unsolved
    2
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    2 Posts
    924 Views
    SGaistS
    Hi, You should try to get a stack trace of your crash, that will help narrow down the problem.
  • Opening file from mail in IOS [solved]

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    D
    I Solved using QDesktopServices::setUrlHandler See my reply on QTBUG-42942
  • AVD performance and usage

    Unsolved
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    2 Posts
    587 Views
    jsulmJ
    Is not related to Qt For me it's working: if I start my app in an emulator then that emulator instance is used again when I build and deploy again
  • How to change camera recorder settings in iOS ?

    Unsolved ios qcamera qmediarecorder qtmultimedia
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    2 Posts
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    SGaistS
    Hi and welcome to devnet, The nicest thing to do would be as stated in the TODO: get the information from the video encore settings control and rebuilt the plugin.