Connect QML signal from delegate to C++ object

fede

Hello,
I have a QML ListView with a button into the delegate Item. I'd like to know if it's possible connect a delegate Item signal to a particular C++ object slot.

ODБOï

@fede hi,
of course you can do that.
Create your c++ class (subclass QObject) and the slot you need

class MyClass: public QObject  
{ 
    Q_OBJECT 
public: 
    explicit MyClass(QObject *parent = 0); 
  
signals: 
  
public slots: 
    void theSlot(){ ... }
};

Create an instance of the class in main.cpp and use setContextProperty() methode to make your object reachable in QML
http://doc.qt.io/qt-5/qqmlcontext.html#setContextProperty

#include "myclass.h"
  
int main(int argc, char *argv[]) 
{ 
    QGuiApplication app(argc, argv); 
    MyClass c;  
    QQmlApplicationEngine engine; 
    engine.rootContext()->setContextProperty("myObj", &c);
    engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); 
  
    return app.exec(); 
}

then you can call theSlot()

..{
onClicked: myObj.theSlot()
}