はてなブックマーク

- (void) showNavigationToolBar { UINavigationBar *navBar = self.navigationController.navigationBar; float animationDuration = 0.1; [self.navigationController setNavigationBarHidden:NO animated:NO]; navBar.frame = CGRectMake(navBar.frame.origin.x, -navBar.frame.size.height, navBar.frame.size.width, navBar.frame.size.height); [UIView animateWithDuration:animationDuration animations:^{ navBar.frame =