Dave, Try the following:
- (void) scrollViewDidScroll:(LTWScrollView*) theScrollView
{
if (theScrollView.tag == kScrollViewA)
{
[self.scrollViewB setContentOffset:theScrollView.contentOffset
animated:NO];
[self.scrollViewC setContentOffset:theScrollView.contentOffset
animated:NO];
}
else if (theScrollView.tag == kScrollViewB)
{
[self.scrollViewA setContentOffset:theScrollView.contentOffset
animated:NO];
[self.scrollViewC setContentOffset:theScrollView.contentOffset
animated:NO];
}
else if (theScrollView.tag == kScrollViewC)
{
[self.scrollViewA setContentOffset:theScrollView.contentOffset
animated:NO];
[self.scrollViewB setContentOffset:theScrollView.contentOffset
animated:NO];
}
}
It may help.
Damian
On Oct 9, 2013, at 8:44 AM, Dave <d...@looktowindward.com> wrote:
> Hi,
>
> I've got a number of scroll views (A, B and C) I'm trying to keep in sync
> with each other, e.g. if the user scrolls A then I want B and C to scroll in
> sync with it. I've got this working by adding code in the scrollViewDidScroll
> method that passes the contentOffset onto the other two scroll views.
>
> This works ok, but it is judders a bit and flickers when scrolling quickly.
>
> This is the code:
>
> - (void) scrollViewDidScroll:(LTWScrollView*) theScrollView
> {
> if (theScrollView.tag == kScrollViewA)
> {
> self.scrollViewB.contentOffset = theScrollView.contentOffset;
> self.scrollViewC.contentOffset = theScrollView.contentOffset;
> }
>
> else if (theScrollView.tag == kScrollViewB)
> {
> self.scrollViewA.contentOffset = theScrollView.contentOffset;
> self.scrollViewC.contentOffset = theScrollView.contentOffset;
> }
> else if (theScrollView.tag == kScrollViewC)
> {
> self.scrollViewA.contentOffset = theScrollView.contentOffset;
> self.scrollViewB.contentOffset = theScrollView.contentOffset;
> }
> }
>
> I've tried a few things, but nothing seem to make a difference.
>
> Any ideas anyone?
>
> Thanks a lot
> Dave
>
>
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