Auto Layout - how to follow superview

gistfile1.m

    NSDictionary* views = @{@"collectionView": self.collection};
    
    NSArray* sHorizontal = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|[collectionView]|"
                                                                   options:0
                                                                   metrics:nil
                                                                     views:views];
    
    
    NSArray* sVertical = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|[collectionView]|"
                                                                 options:0
                                                                 metrics:nil
                                                                   views:views];
    
    [self.view addConstraints:sHorizontal];
    [self.view addConstraints:sVertical];