C # массив кнопок не работает

Это то, что я сделал для iOS9 и Storyboard.

Я использовал ответ @ skyline75489 (большое спасибо) и изменил его.

@property (nonatomic) CGFloat portraitHeight;
@property (nonatomic) CGFloat landscapeHeight;
@property (nonatomic) BOOL isLandscape;
@property (nonatomic) NSLayoutConstraint *heightConstraint;

@property (nonatomic) BOOL viewWillAppearExecuted;


- (id)initWithCoder:(NSCoder *)aDecoder {
    self = [super initWithCoder:aDecoder];
    if (self) {
        // Perform custom initialization work here
        self.portraitHeight = 256;
        self.landscapeHeight = 203;
    }
    return self;
}

- (void)updateViewConstraints {
    [super updateViewConstraints];

    if (_viewWillAppearExecuted)
        [self adjustHeight];
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    [self.view addConstraint:self.heightConstraint];
    _viewWillAppearExecuted = YES;
}

#pragma mark - Setters/Getters

- (NSLayoutConstraint *)heightConstraint
{
    if (!_heightConstraint) {
        _heightConstraint = [NSLayoutConstraint constraintWithItem:self.view attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:0.0 constant:self.portraitHeight];
        _heightConstraint.priority = UILayoutPriorityRequired - 1;
    }

    return _heightConstraint;
}

#pragma mark - Methods

- (void)adjustHeight
{
    if (self.view.frame.size.width == 0 || self.view.frame.size.height == 0)
        return;

    [self.view removeConstraint:self.heightConstraint];
    CGSize screenSize = [[UIScreen mainScreen] bounds].size;
    CGFloat screenH = screenSize.height;
    CGFloat screenW = screenSize.width;
    BOOL isLandscape =  !(self.view.frame.size.width ==
                          (screenW*(screenW<screenH))+(screenH*(screenW>screenH)));

    self.isLandscape = isLandscape;
    if (isLandscape) {
        self.heightConstraint.constant = self.landscapeHeight;
        [self.view addConstraint:self.heightConstraint];
    } else {
        self.heightConstraint.constant = self.portraitHeight;
        [self.view addConstraint:self.heightConstraint];
    }
}