My application has two different modes I am switching between by replacing the two views in a UISplitViewController. This involves instantiating the new views and a new UISplitViewController. I then set the new detail view as the UISplitViewController's delegate.

I'm running into an issue where when I replace the view controllers and splitview controller, they are not properly sized or added for the current orientation. For instance, if I have my iPad in UIDeviceOrientationPortraitUpsideDown the view will be upside down when I call addSubview, but will rotate to the proper orientation after a second. In another instance, if I have the device in landscape mode and swap the views, the detail view controller is not fully stretched to the size of the view. If I rotate the device to portrait and back to landscape, its resized properly.

The code I'm using to create the new split view and view controllers is as follows.

- (void)showNotes {
  teiphoneAppDelegate *appDelegate = (teiphoneAppDelegate *)[[UIApplication sharedApplication] delegate];    

  [appDelegate.splitViewController.view removeFromSuperview];  

  OMSavedScrapsController *notesViewController = [[OMSavedScrapsController alloc] initWithNibName:@"SavedScraps" bundle:nil];
  UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:notesViewController];
  ComposeViewController *noteDetailViewController = [[ComposeViewController alloc] initWithNibName:@"ComposeView-iPad" bundle:nil];  

  UISplitViewController *newSplitVC = [[UISplitViewController alloc] init];
  newSplitVC.viewControllers = [NSArray arrayWithObjects:navController, noteDetailViewController, nil];
  newSplitVC.delegate = noteDetailViewController;
  appDelegate.splitViewController = newSplitVC;

  // Fade in the new split view
  appDelegate.splitViewController.view.alpha = 0.0f;
  [appDelegate.window addSubview:appDelegate.splitViewController.view];
  [appDelegate.window makeKeyAndVisible];
  [UIView beginAnimations:nil context:appDelegate.window];
  [UIView setAnimationDuration: 0.5f];
  [UIView setAnimationCurve: UIViewAnimationCurveEaseInOut];
  appDelegate.splitViewController.view.alpha = 1.0f;
  [UIView commitAnimations];  

  [notesViewController release];
  [navController release];
  [noteDetailViewController release];  
  [newSplitVC release];
}

Any suggestions for how to get the new splitview to add for the device's current orientation and frame?