Xcode 6 iOS 8 Rotation Issue - Large Blank Space On Screen - ios

Question

I am running into a very strange issue with my iPad app in Xcode 6. Previously (When building with Xcode 5 / iOS 7 SDK) it would handle rotations with no problem, but now that developers are required to build with Xcode 6 / iOS 8 SDK, my app no longer handles rotation properly.
I did some research and was able to use the viewWillTransitionToSize method in order to get all my subviews to properly rotate and resize themselves. However, my screen has a large white rectangle along the side when I rotate. If I start the app in portrait and rotate to landscape, it goes from looking normal to having a large white space on the right.
(The same thing happens if I start in landscape and rotate to portrait, but the white space is on the bottom).
My subviews are definitely resizing themselves properly, but that white space unfortunately covers them up. I checked the both the bounds and frame of my UIScreen window and those values seem valid (1024w x 768h in landscape, 768w x 1024h in portrait). Previously it was a black space but once I added the line [self.window setFrame:[[UIScreen mainScreen] bounds]]; to my didFinishLaunchingWithOptions method, it became a white space.
The following is the viewWillTransitionToSize code that I'm using:
- (void) viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size WithTransitionCoordinator:coordinator];
UIInterfaceOrientation *orientation = [self interfaceFromTransform:[coordinator targetTransform]];
UIInterfaceOrientation *oldOrientation = [[UIApplication sharedApplication] statusBarOrientation];
[self willRotateToInterfaceOrientation:orientation duration:1.0];
[coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> content)
{
[self willAnimateRotationToInterfaceOrientation:orientation duration:1.0];
}
completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
{
[self didRotateFromInterfaceOrientation:oldOrientation];
}];
CGFloat height = self.view.frame.size.height;
CGFloat width = self.view.frame.size.width;
[self.view setFrame:CGRectMake(0, 0, height, width)];
}
interfaceFromTransform is a method I created to determine which interface the transform is rotating to:
- (UIInterfaceOrientation) interfaceFromTransform: (CGAffineTransform)transform
{
UIInterfaceOrientation old = [[UIApplication sharedApplication] statusBarOrientation];
int rotation = 0;
if (transform.b == -1 && transform.c == 1)
rotation = 90;
if (transform.b == 1 && transform.c == -1)
rotation = -90;
if (transform.a == -1 && transform.d == -1)
rotation = 180;
if (old == UIInterfaceOrientationLandscapeRight)
{
if (rotation == 90)
return UIInterfaceOrientationPortrait;
if (rotation == -90)
return UIInterfaceOrientationPortraitUpsideDown;
if (rotation == 180)
return UIInterfaceOrientationLandscapeLeft;
}
if (old == UIInterfaceOrientationLandscapeLeft)
{
if (rotation == 90)
return UIInterfaceOrientationPortraitUpsideDown;
if (rotation == -90)
return UIInterfaceOrientationPortrait;
if (rotation == 180)
return UIInterfaceOrientationLandscapeRight;
}
if (old == UIInterfaceOrientationPortraitUpsideDown)
{
if (rotation == 90)
return UIInterfaceOrientationLandscapeRight;
if (rotation == -90)
return UIInterfaceOrientationLandscapeLeft;
if (rotation == 180)
return UIInterfaceOrientationPortrait;
}
if (old == UIInterfaceOrientationPortrait)
{
if (rotation == 90)
return UIInterfaceOrientationLandscapeLeft;
if (rotation == -90)
return UIInterfaceOrientationLandscapeRight;
if (rotation == 180)
return UIInterfaceOrientationPortraitUpsideDown;
}
return old;
}
Yet despite all this, that white space still refuses to go away. Is there something obvious that I'm missing that will keep it from appearing when I rotate the screen?

Answer 1

As it turns out, I had disabled "Autoresize Subviews" in my main window nib file. Enabling this immediately fixed the problem.