I wan't to make an app that is compatible with an iOS version as low as 5.0, but still keep it to stretch to the iPhone 5 size. I figured I made 3 different storyboards: one for iPad, iPhone and iPhone 5. I used
#define IS_IPHONE_5 ( fabs( ( double )[ [ UIScreen mainScreen ] bounds ].size.height - ( double )568 ) < DBL_EPSILON )
from this question
It was very strange when it didn't enter this code
if (IS_IPHONE_5 && UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
So, I figured to print the screen size to the console, using this code:
NSLog(@"%f", [UIScreen mainscreen].bounds.size.height);
Oddly, it gave me the output of
480.000000
instead of 568.f like it should be on a 4-inch device.
Things that might be the problem:
Note: I've tried on 4.6, and it still doesn't work
Your app is not iPhone 5 compatible. Hence, when you run the app on the iPhone 5 simulator, the compatibility mode for 3.5-inch screen turns on automatically, and your app doesn't occupy the entire screen.
Here you can see how to add iPhone 5 compatability to your app.