An example of how loading a nib file with a custom view can be done

Nibloading category

// UIView+KHMNibLoading.h
@interface UIView (KHMNibLoading)

+ (instancetype)viewFromNib;

@end

// UIView+KHMNibLoading.m
+ (instancetype)viewFromNib {
    NSString *className = NSStringFromClass([self class]);
    NSArray *bundle = [[NSBundle mainBundle] loadNibNamed:className owner:self options:nil];
    
    id view = nil;
    for (id object in bundle) {
        if ([object isKindOfClass:[self class]]) {
            view = object;
        }
    }
    
    NSAssert(view != nil, @"Failed attempt to load %@ from nib", className);
    
    return view;
}