make invisible a UIBarButtonItem

问题

I can make an invisible UIBarButtonItem on UIToolbar, inserted with XCode / Storyboard? I have found a property to disable it: enabled = NO, but is not made it invisible

回答1:

    NSMutableArray *items = [YourToolBar.items mutableCopy];
    [items removeObject:BarButton];
    YourToolBar.items = items;
    [items release];

来源：https://stackoverflow.com/questions/10753233/make-invisible-a-uibarbuttonitem