QDialog :: exec在3次调用后做出反应

Question

I'm using a custom dialog, and I'm showing it by calling:

this->numberPick.move(point);
this->numberPick.setWindowFlags(Qt::SplashScreen);
this->numberPick.setParent(this);
this->numberPick.setModal(true);
this->numberPick.exec();

All this code is invoked in void MainWindow::on_boardView_clicked(const QModelIndex &index){} (event "clicked" from QTableView ).

The problem is quite strange. I need to click on my button for 3 times for dialog to show. After second click Qt Creator gives me warning like this "QDialog::exec: Recursive call detected" .

Funny thing is that this happens only once (in single application instance). Next clicks works like a charm.

Answer 1

I haven't fixed this problem, but i made a little workaround and it works like that:

this->numberPick = new NumberPick(this);
this->numberPick->setCell(cell);
this->numberPick->move(point);
this->numberPick->setWindowFlags(Qt::SplashScreen);
this->numberPick->exec();
delete this->numberPick;

But the question is still opened