C++ Signal is not received in QML slot - c++

Question

I have a C++ class that emits a signal. I want that signal to be delivered to QML.
I set the object as a context property of qml application engine root context.
My C++ class
// Sample.h
class Sample : public QObject
{
Q_OBJECT
public:
explicit Sample(QObject *parent = nullptr);
public slots:
void emitSomething();
signals:
void emitted();
public slots:
};
And the implementation
// Sample.cpp
Sample::Sample(QObject *parent) : QObject(parent)
{
}
void Sample::emitSomething()
{
emit emitted();
}
My main implementation. This is very similar to the code provided by qt creator.
int main(int argc, char *argv[])
{
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
Sample sample;
QQmlApplicationEngine engine;
engine.rootContext()->setContextProperty("obj", &sample);
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
if (engine.rootObjects().isEmpty())
return -1;
QTimer::singleShot(1000, &sample, &Sample::emitSomething);
return app.exec();
}
The qml implementation is
import QtQuick 2.9
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
Connections {
target: obj
onEmitted: function() {
console.log("received")
}
}
}
When I run the code, emitSomething() slot is called, but I don't see emitted() signal in qml.

Answer 1

I didn't have version 5.9, but I tried it with 5.10.1. In that case, the text did not get printed to the console. I fixed it by changing the syntax on the signal handler. (Just remove function().)
Connections {
target: obj
onEmitted: {
console.log("received")
}
}