检查目录是否为空

我正在尝试检查目录是否为空。

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QDir Dir("/home/highlander/Desktop/dir");
    if(Dir.count() == 0)
    {
        QMessageBox::information(this,"Directory is empty","Empty!!!");
    }
}

正确的检查方法是什么，排除. and ..?

好吧，我有办法做到这一点:)

if(QDir("/home/highlander/Desktop/dir").entryInfoList(QDir::NoDotAndDotDot|QDir::AllEntries).count() == 0)
{
    QMessageBox::information(this,"Directory is empty","Empty!!!");
}