UIScrollView disable scrolling in just one direction?

Question

I\'ve been unable to find an answer for this (maybe someone has hacked a solution together).

Is it possible to disable scrolling in a UIScrollView in one direction?

Answer 1

Instead of using a UIScrollViewDelegate to correct the already wrong contentOffset (which will result in a jittery behaviour) you may want to consider to sub class UIScrollView instead and overriding setContentOffset:

- (void)setContentOffset:(CGPoint)contentOffset {
    if (contentOffset.y <= 60) {
        [super setContentOffset:contentOffset];
    }
}

Off course this can be generalized by adding a property for the min or max allowed value for the content offset. You may need to override setContentOffset:animated: as well.