Question

I am working on application in it I have to work with two scroll view Simultaneous in one touch. It means if I scroll one scroll view at same time another scroll view must scroll with it.

If this is possible then how can it be done?

Answer 1

Implement the UIScrollViewDelegate protocol in the view controller containing both scroll views. In the:

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

delegate method, get the content offset:

CGPoint offset = [scrollViewA contentOffset]; // or scrollViewB

Then set the other control with:

- (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated

You can determine which one to change by comparing in the delegate method above:

if( scrollView == scrollViewA ) // change offset of B
else // change offset of A