How to connect a Qt Quick button click to a c++ method

Question

I\'ve just started to learn about Qt Mobile programming with Qt Quick 2.0 and I\'ve been on google the whole day and its driving me crazy so here goes. I have got just your

Answer 1

First, you need to export the SomeClass object to QtQuick (is that your third question?):

SomeClass sc;
viewer.rootContext()->setContextProperty(QStringLiteral("_someObject"), &sc);

This makes the sc object available in QtQuick, under the name "_someObject".

Then, in the QML use it like this:

Button {
    ....
    onClicked: {
        _someObject.buttonClicked(); //_someObject is the name used in setContextProperty.
    }
}

This assumes the Button has a signal clicked() that's emitted on click/touch. Not knowing which Button component you use, I can't check that.

To pass an argument, just do

onClicked: {
    _someObject.buttonClicked("Something");
}