How to hide tab bar programmatically and then expand view to fit

Question

I got the code from this question: How to hide UITabBarController programmatically? which is brilliant, however the view doesn\'t expand to fit the space left by the tab bar

Answer 1

-(void)hideTabBar
{   UITabBarController * tabbarcontroller= appDelegate.tabBarVC;
        if (tabbarcontroller.tabBar.isHidden) 
    {
        return;
    }
    tabbarcontroller.tabBar.hidden=YES;
    CGRect frm=tabbarcontroller.view.frame;
    frm.size.height += tabbarcontroller.tabBar.frame.size.height;
    tabbarcontroller.view.frame=frm;
}
-(void)showTabBar
{    UITabBarController * tabbarcontroller=appDelegate.tabBarVC;
    if (!tabbarcontroller.tabBar.isHidden)
    {
        return;
    }
    CGRect frm=tabbarcontroller.view.frame;
    frm.size.height -= tabbarcontroller.tabBar.frame.size.height;
    tabbarcontroller.view.frame=frm;
    tabbarcontroller.tabBar.hidden=NO;  
}
here appDelegate is = (AppDelegate *) [[UIApplication sharedApplication] delegate]
tabBarVc is UITabBarController *tabBarVC defined as property in app delegate