Qt 5.9 | Qt Bluetooth | Bluetooth QML Chat Example | qmlchat.cpp Example File

Qt 5.9.9 Reference Documentation

# qmlchat.cpp Example File

chat/qmlchat.cpp

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      #include <QtGui/QGuiApplication>
      #include <QtQuick/QQuickView>
      #include <QtQml/QQmlEngine>
      #include <QtQml/QQmlContext>
      #include <QDebug>
      #include <QBluetoothLocalDevice>
      #include <QtCore/QLoggingCategory>
      #ifdef Q_OS_ANDROID
      #include <QtAndroidExtras/QtAndroid>
      #endif

      int main(int argc, char *argv[])
      {
          //QLoggingCategory::setFilterRules(QStringLiteral("qt.bluetooth* = true"));
          QGuiApplication application(argc, argv);

          QList<QBluetoothHostInfo> infos = QBluetoothLocalDevice::allDevices();
          if (infos.isEmpty())
              qWarning() << "Missing Bluetooth local device. "
                            "Example will not work properly.";

          const QString mainQmlApp = QLatin1String("qrc:/chat.qml");
          QQuickView view;

      #ifdef Q_OS_ANDROID
          //workaround for Android's SDP discovery bug (see QTBUG-61392)
          QString uuid;
          if (QtAndroid::androidSdkVersion() >= 23)
              uuid = QStringLiteral("c8e96402-0102-cf9c-274b-701a950fe1e8");
          else
              uuid = QStringLiteral("e8e10f95-1a70-4b27-9ccf-02010264e9c8");
      #else
          const QString uuid(QStringLiteral("e8e10f95-1a70-4b27-9ccf-02010264e9c8"));
      #endif

          view.engine()->rootContext()->setContextProperty(QStringLiteral("targetUuid"), uuid);
          view.setSource(QUrl(mainQmlApp));
          view.setResizeMode(QQuickView::SizeRootObjectToView);
          // Qt.quit() called in embedded .qml by default only emits
          // quit() signal, so do this (optionally use Qt.exit()).
          QObject::connect(view.engine(), SIGNAL(quit()), qApp, SLOT(quit()));
          view.setGeometry(QRect(100, 100, 360, 480));
          view.show();
          return application.exec();
      }