Hi, I should have said, this is for iOS and it doesn't look like UIScrollView has the scrollToPoint method defined.
There is also something about using notifications for this in a Mac Reference: https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/NSScrollViewGuide/Articles/SynchroScroll.html But I'm not sure if this is recommended for iOS? Thanks a lot Dave On 9 Oct 2013, at 14:52, Tamas Nagy <[email protected]> wrote: > Hi, > > in one of my apps I'm doing this too, but without any problems. I'm using > scrollToPoint: method instead. > > [[NSNotificationCenter defaultCenter] addObserver:self > > selector:@selector(viewScrolled:) > > name:NSViewBoundsDidChangeNotification > object:[[self > timelineViewScrollView] contentView]]; > > … > > > -(void)viewScrolled:(NSNotification *)notification { > > > if ([[notification object] isEqualTo:[[self timelineViewScrollView] > contentView]]) { > > > [[[self trackHelperViewScrollView] contentView] > scrollToPoint:NSMakePoint([[[self trackHelperViewScrollView] contentView] > bounds].origin.x, [[[self timelineViewScrollView] contentView] > bounds].origin.y)]; > > [[[self markerViewScrollView] contentView] > scrollToPoint:NSMakePoint([[[self timelineViewScrollView] contentView] > bounds].origin.x, [[[self markerViewScrollView] contentView] > bounds].origin.y)]; > > > } else > > . > . > . > . > > Cheers, > Tamas > > On Oct 9, 2013, at 3:44 PM, Dave <[email protected]> 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 >> >> >> _______________________________________________ >> >> Cocoa-dev mailing list ([email protected]) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/cocoa-dev/tamas.lov.nagy%40gmail.com >> >> This email sent to [email protected] > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
