QT中qml和c++交互访问c++中的对象


// ! class define will be used instantiated in main function

class MyInterface : ...
{
...
    QPROPERTY(QAbstractItemModel *myModel READ model NOTIFY modelChanged)
...
};

// ! main function


#include <QApplication>
#include <QDeclarativeView>
#include <QDeclarativeContext>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QDeclarativeView view;
    QDeclarativeContext *context = view.rootContext();


    // Property:backgroundColor
    context->setContextProperty("backgroundColor", QColor(Qt::yellow));

    //object: QObject *
    context->setContextObject(myInterface);

    view.setSource(QUrl::fromLocalFile("main.qml"));
    view.show();

    return app.exec();
}

// ! main.qml

...