My aim was to get the application functioning in both landscape and portrait mode, and all I could figure out to do it was this code below. The app was working fine in portrait, but when switched to landscape, the text wouldn't expand (to the right) to fill up the additional space. I made sure my springs/struts where set, and that the parents had "allowResizing" selected in IB.

Here's what I've done instead:

- (void) willAnimateSecondHalfOfRotationFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation duration: 
(NSTimeInterval)duration {
  UIInterfaceOrientation toInterfaceOrientation = self.interfaceOrientation;

  if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {
    self.myView.frame = CGRectMake(0.0, 0.0, 320.0, 480.0);
  }
  else {
    self.myView.frame = CGRectMake(0.0, 0.0, 480.0, 256.0);
  }
}

Note that it looks just fine in portrait mode (toolbar appears):

But the toolbar is gone in landscape mode:

Any ideas?