QList到QQmlListProperty

Question

正如官方文档所述，我试图使用QQmlListProperty将QList传递给QML：

var directory = new DirectoryInfo(DirectoryPath);
var query = directory.GetFiles("*.bmp", SearchOption.AllDirectories);
foreach (var file in query.OrderByDescending(file => file.CreationTime).Skip(1))
{
    file.Delete();
}

我的代码是：

QQmlListProperty::QQmlListProperty(QObject *object, void *data, CountFunction count, AtFunction at)

但是我收到了错误：

QQmlListProperty<TTimingDriver> TTiming::getDrivers()
{
    return QQmlListProperty<TTimingDriver>(this, &m_drivers, &TTiming::count, &TTiming::driverAt);
}

int TTiming::count(QQmlListProperty<TTimingDriver> *property)
{
    TTiming * timing = qobject_cast<TTiming *>(property->object);
    return timing->m_drivers.count();
}

TTimingDriver * TTiming::driverAt(QQmlListProperty<TTimingDriver> *property, int i)
{
    TTiming * timing = qobject_cast<TTiming *>(property->object);
    return timing->m_drivers.at(i);
}

Answer 1

我想

获取QList的那个不需要指向函数的指针。

所以这应该足够了

QQmlListProperty<TTimingDriver> TTiming::getDrivers()
{
    return QQmlListProperty<TTimingDriver>(this, m_drivers);
}

假设m_drivers的类型为QList<TTimingDriver*>