set visible/invisible is not working for android native QMenubar

[ahsan737]

I've set the QMenubar to be nativeMenuBar, I want to show/hide it alternatively but it is not working

ui->menuBar->setVisible(false);

but if I set nativeMenuBar to false then I can show/hide it

ui->menuBar->setNativeMenuBar(false);

and then if I set nativeMenuBar to true again then can't hide/display it

Can anyone help out and explain why this is happening?