Create a custom view by loading it's content from a nib and provide a viewDidLoad like on the viewControllers

gistfile1.m

@interface __class__ ()
@property (nonatomic, strong) UIView *rootNibView;
@end

@implementation __class__

- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        [self loadView];
    }
    return self;
}

- (id)initWithCoder:(NSCoder *)aDecoder {
    self = [super initWithCoder:aDecoder];
    if (self) {
        [self loadView];
    }
    return self;
}

- (void)loadView {
    NSString *nibName = NSStringFromClass([self class]);
    NSArray *nibViews = [[NSBundle mainBundle] loadNibNamed:nibName owner:self options:nil];
    self.rootNibView = [nibViews objectAtIndex:0];
    self.rootNibView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    self.rootNibView.frame = self.bounds;
    [self addSubview:self.rootNibView];
    [self viewDidLoad];
}

- (void)viewDidLoad {
    // Do any additional setup after loading the view from its nib.
}

@end