So I have a fre issues with NFC. 1. a tag I wrote, it's just got text on it. I'm using the annotatedurl example as a base. I've removed the filter so I can see every tag.
The problem is, 50% of the time it does not work, at least right away. I present the tag and sometimes the app gets the text. The other times, it goes to the default NFC handler. If I then close the default NFC handler, it will read the tag. If I wait a while (indeterminate amount of time) it will "just work" as it should. Has anyone seen this before? The extent of my code change (aside from debug statements) is: //int result = manager->registerNdefMessageHandler(filter, this, SLOT(handleMessage(QNdefMessage,QNearFieldTarget*))); int result = manager->registerNdefMessageHandler(this, SLOT(handleMessage(QNdefMessage,QNearFieldTarget*))); I think the issue the adapter might not be ready, which brings me to the next issue: 2. I'm also having problems connecting to adapterStateChange: connect(manager, SIGNAL(adapterStateChanged(QNearFieldManager::AdapterState)), this, SLOT(handleStateChange(QNearFieldManager::AdapterState))); pubic slots: void handleStateChange(QNearFieldManager::AdapterState state); void AnnotatedUrl::handleStateChange(QNearFieldManager::AdapterState state) { qDebug() << "*********************************"; qDebug() << Q_FUNC_INFO << state; qDebug() << "*********************************"; } I get, depending on the variant of the connect syntax I try: libannotatedurl.so: QObject::connect: Incompatible sender/receiver arguments W libannotatedurl.so: QNearFieldManager::adapterStateChanged(AdapterState) --> AnnotatedUrl::handleStateChange(QNearFieldManager::AdapterState) (was connect(manager, SIGNAL(adapterStateChanged(AdapterState)), this, SLOT(handleStateChange(QNearFieldManager::AdapterState)));) or W libannotatedurl.so: QObject::connect: No such signal QNearFieldManager::adapterStateChanged(QNearFieldManager::AdapterState) in annotatedurl.cpp:107 (was connect(manager, SIGNAL(adapterStateChanged(QNearFieldManager::AdapterState)), this, SLOT(handleStateChange(QNearFieldManager::AdapterState)));) or W libannotatedurl.so: QObject::connect: No such slot AnnotatedUrl::handleStateChange(AdapterState) in annotatedurl.cpp:107 (was connect(manager, SIGNAL(adapterStateChanged(AdapterState)), this, SLOT(handleStateChange(AdapterState)));) In the .h for it, it is declared as: /* in class Q_NFC_EXPORT QNearFieldManager : public QObject */ Q_SIGNALS: void adapterStateChanged(AdapterState state); What is the proper connection syntax? _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest