如何赋值单例类型的QmlListProperty

class MySingleton : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QmlListProperty<MyObject> objects READ objects NOTIFY objectsChanged)

public:
    explicit MySingleton(QObject *parent = nullptr);

    QmlListProperty<MyObject> objects();

signals:
    void objectsChanged();

private:
    static void appendObject(QQmlListProperty<MyObject> *list, MyObject *object);
    static int countObjects(QQmlListProperty<MyObject> *list);
    static MyObject* objectAt(QQmlListProperty<MyObject> *list, int index);
    static void clearObjects(QQmlListProperty<MyObject> *list);

    QList<MyObject*> m_objects;
};

MySingleton::MySingleton(QObject *parent) : QObject(parent)
{
}

QmlListProperty<MyObject> MySingleton::objects()
{
    return QmlListProperty<MyObject>(this, m_objects);
}

void MySingleton::appendObject(QQmlListProperty<MyObject> *list, MyObject *object)
{
    MySingleton *singleton = qobject_cast<MySingleton *>(list->object);
    if (singleton && object) {
        singleton->m_objects.append(object);
        emit singleton->objectsChanged();
    }
}

int MySingleton::countObjects(QQmlListProperty<MyObject> *list)
{
    MySingleton *singleton = qobject_cast<MySingleton *>(list->object);
    if (singleton) {
        return singleton->m_objects.count();
    }
    return 0;
}

MyObject* MySingleton::objectAt(QQmlListProperty<MyObject> *list, int index)
{
    MySingleton *singleton = qobject_cast<MySingleton *>(list->object);
    if (singleton && index >= 0 && index < singleton->m_objects.count()) {
        return singleton->m_objects.at(index);
    }
    return nullptr;
}

void MySingleton::clearObjects(QQmlListProperty<MyObject> *list)
{
    MySingleton *singleton = qobject_cast<MySingleton *>(list->object);
    if (singleton) {
        singleton->m_objects.clear();
        emit singleton->objectsChanged();
    }
}

import MyModule 1.0

MySingleton {
    id: singleton

    onObjectsChanged: {
        // 处理对象列表变化的逻辑
    }
}

ListView {
    model: singleton.objects // 使用QmlListProperty作为ListView的数据源

    delegate: Item {
        // 显示对象的内容
    }
}