iPhone: How to set UIViewController frame?

Question

I have a root UIViewController that I am adding other UIViewController\'s as subviews. Currently each of the subviews are too low down (covering up my custom build tabbar).

Answer 1

First, ensure that your frame is actually not changing size. Likely it /is/ changing size, but you are expecting it to clip its contents; this behavior is not enabled by default on a UIView, and would need to be set via:

  [[self view] setClipsToBounds:YES];

To double check and ensure that your frame is / is not changing size after setting the new frame, try logging this:

  NSLog(@"New frame is: %@", NSStringFromCGRect([[self view] frame]));

or simply setting a breakpoint after the change and inspecting the value in your debugger.