Question

I have several UIViewControllers, loaded via a UINavigationController, where I override loadView, and setup a custom view to display. I am having problems with setting the frames of some of the subviews, and maybe the view itself. I think that either the UINavigationController or the UIViewController is able to force it’s view to fill the screen when displayed.

I am wondering if and/or when the size of the view is set. And if it is happening, is it setting the frame of the view, or doing it another way.

Thanks.

Update:
I have just noticed while working through this is that I make an new UINavigationController, with this loadView method:

- (void)loadView
{
  UIView *view = [[UIView alloc] initWithFrame:CGRectMake(10.0f, 10.0f, 10.0f, 10.0f)];
  [view setBackgroundColor:[UIColor redColor]];
  self.view = view;
  [view release];
}

I get a red view taking up the entire screen, except for the status bar and header. When does my view get resized to fill the screen? And what size should I use when creating the view?

Answer 1

The framespace for the UIViewControllers becomes smaller, because UINavigationController manipulates the view by adding a UINavigationBar, which is 44.0f in size.

It gets resized because you replace the view with self.view = view; If you would have used addSubview: instead it would have stayed it’s original size. logancautrell explained when and why.