Error while deploying NFC qt code to android:

RohitIti

Error while deploying qt code to android:

W System : ClassLoader referenced unknown path:
W linker : /data/data/org.qtproject.example.NFC_Research/qt-reserved-files/plugins/platforms/android/libqtforandroid.so: is missing DT_SONAME will use basename as a replacement: "libqtforandroid.so"

Whats this issue and how to resolve this ?

below is my code:
**MainWindow.cpp
**
manager = new QNearFieldManager(this);

    if(manager->isAvailable())
    {
        qDebug() << " Nfc is availiable";
    }
    else
    {
        qDebug() << " Nfc is not availiable";
        qWarning() << "NFC not available";
    }
    manager->setTargetAccessModes(QNearFieldManager::NdefReadTargetAccess);
    manager->registerNdefMessageHandler(this, SLOT(handleNdefMessage(QNdefMessage,QNearFieldTarget*)));

    connect(manager,SIGNAL(targetDetected(QNearFieldTarget*)),this,SLOT(nfcTargetDetected(QNearFieldTarget*)));
    connect(manager,SIGNAL(targetLost(QNearFieldTarget*)),this, SLOT(nfcTargetLost(QNearFieldTarget*)));


if (!manager->startTargetDetection()) {
    qWarning() << "NFC target detection could not be started";
}

main.cpp
QApplication a(argc, argv);
MainWindow w;
w.show();

jsulm

It looks more like a warning and not an error.
Is the application deployed and does it run?

RohitIti

application id deployed but doesn't work because according to what i understand is that qt will create all libraries required to run in android device. libqtforandroid.so is a core library for running qt code .

NFC always say as it is not available where as phone supports nfc. This can also be linked for my thread " QT NFC not working".

Can you tell how to use nfc in qt . Examples that are there in qt are not working. When ever i use the code that i posted it will always say as nfc not availiable.

jsulm

Which Qt version are you using?
NFC support for Android was added in 5.6