Qt从QMenu删除动作以稍后再添加

Question

I need to remove actions from a QMenu , but I need to add them later.

The problem is that whan I re-add them, they dont appear (probably because the actions are deleted when I remove them from the Menu).

How can I do this?

Note that hiding/disabling, etc is not suitable for me, I really need to remove them

Answer 1

You don't say precisely how you create/add/remove the actions from the QMenu so I can't comment on what you're currently doing, but... you should be able to create/manage some of the actions yourself and then use the QWidget::addAction(QAction *) overload -- it doesn't assume ownership of the QAction passed as a parameter.

QMenu menu;
QAction action_I_Want_to_manage("Save...");
menu.addAction("File...");
menu.addAction(&action_I_Want_to_manage);
menu.exec(QCursor::pos());

/*
 * Remove the action temporarily...
 */
menu.removeAction(&action_I_Want_to_manage);
menu.exec(QCursor::pos());

/*
 * ...stick it back in.
 */
menu.addAction(&action_I_Want_to_manage);
menu.exec(QCursor::pos());