Removing QComboBox “Drop-Down” Animation

问题

I am using Qt 4.8 and would like to get rid of the "Drop-Down" animation when clicking on a QComboBox. I also want to move it a bit. So far I've been looking at re-implementing showPopup and hidePopup but can't figure out how to make it work.

Additionally, every time I try to move or style using CSS there is a white background that is always there. (See picture). Any help would be appreciated.

回答1:

Use QApplication::setEffectEnabled:

QApplication::setEffectEnabled(Qt::UI_AnimateCombo, false);

来源：https://stackoverflow.com/questions/14150748/removing-qcombobox-drop-down-animation