UIView (NibLoadingExtension)

gistfile1.m

@implementation UIView (NibLoadingExtension)

+ (id)viewFromNib
{
	static	NSMutableDictionary	*caches = nil;
	
	static dispatch_once_t onceToken;
	dispatch_once(&onceToken, ^{
		caches = [[NSMutableDictionary dictionary] retain];
	});
	
	Class		class = [self class];
	NSString	*className = NSStringFromClass(class);
	
	UINib	*nib = [caches objectForKey:className];
	
	if (nib == nil)
	{
		nib = [UINib nibWithNibName:className bundle:[NSBundle mainBundle]];
		[caches setObject:nib forKey:className];
	}
	
	NSArray	*topLevelItems = [nib instantiateWithOwner:nil options:nil];
	id	view = nil;
	
	for (id object in topLevelItems)
	{
		if ([object isKindOfClass:class])
		{
			view = object;
			break;
		}
	}
	
	return view;
}

@end