A UIView category for debugging auto layout issues. Taken from @justin williams presentation on auto layout http://vimeopro.com/360conferences/360idev-2013/video/75232527

gistfile1.m

#import <objc/objc-runtime.h>
#import "UIView+SGAutoLayoutExtensions.h"

@implementation UIView (SGAutoLayoutExtensions)

#ifdef DEBUG

- (NSString *)nsli_description
{
    return [self restorationIdentifier] ?: [NSString stringWithFormat:@"%@:%p", [self class], self];
}

- (BOOL)nsli_descriptionIncludesPointer
{
    return [self restorationIdentifier] == nil;
}

- (NSString *)sg_description
{
    // Evil!
    NSString *string = [self performSelector:@selector(nsli_description)];
    
    if (self.restorationIdentifier != nil)
    {
        return [string stringByAppendingFormat:@" (%@)", self.restorationIdentifier];
    }
    
    return string;
}
#endif