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copied!<p>Modified Setomidor's answer to work on both landscape, portrait, and iPad (the 320 and 480 values only work on iPhone).</p> <pre><code>- (void) hideTabBar:(UITabBarController *) tabbarcontroller { CGRect screenRect = [[UIScreen mainScreen] bounds]; [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.5]; float fHeight = screenRect.size.height; if( UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) ) { fHeight = screenRect.size.width; } for(UIView *view in tabbarcontroller.view.subviews) { if([view isKindOfClass:[UITabBar class]]) { [view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)]; } else { [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)]; view.backgroundColor = [UIColor blackColor]; } } [UIView commitAnimations]; } - (void) showTabBar:(UITabBarController *) tabbarcontroller { CGRect screenRect = [[UIScreen mainScreen] bounds]; float fHeight = screenRect.size.height - tabbarcontroller.tabBar.frame.size.height; if( UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) ) { fHeight = screenRect.size.width - tabbarcontroller.tabBar.frame.size.height; } [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.5]; for(UIView *view in tabbarcontroller.view.subviews) { if([view isKindOfClass:[UITabBar class]]) { [view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)]; } else { [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)]; } } [UIView commitAnimations]; } </code></pre> <p>Also modified the code to handle changes introduced in iOS 6 with UIDevice orientation change and ensure that it works properly even when the device is lying on its back.</p>

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