Deactivate UIScrollView decelerating

For iOS 5.0 or later, there is a better method than calling setContentOffset:animated:.

Implement delegate method scrollViewWillEndDragging:withVelocity:targetContentOffset: in your .m file:

- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView
                     withVelocity:(CGPoint)velocity
              targetContentOffset:(inout CGPoint *)targetContentOffset {
    targetContentOffset.pointee = scrollView.contentOffset;
}

Assigning the current offset to targetContentOffset stops the UIScrollView from auto-scrolling.

This can be done by utilizing the UIScrollView delegate method scrollViewWillBeginDecelerating to automatically set the content offset to the current screen position.

To implement:

1. Assign a delegate to your UIScrollView object if you have not already done so.

2. In your delegate's .m implementation file, add the following lines of code:

   -(void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{  
       [scrollView setContentOffset:scrollView.contentOffset animated:YES];   
   }
   

Voila! No more auto-scroll.