The scroll bar indicator is sent to the front each time the scroll view motion stops and starts, this would require a new layout.
On Tue, Feb 8, 2011 at 10:15 AM, David Duncan <david.dun...@apple.com>wrote: > On Feb 8, 2011, at 8:15 AM, Roland King wrote: > > > I can't see why UIScrollView would call layoutSubviews every time it > scrolls, I expected that it would call layoutSubviews once only when its > geometry changes (or you ask it to) and after that would just scroll its > contained view quietly. > > > Technically scrolling is a geometry change, since it is accomplished by > changing the layer's bounds.origin (basically the change is coming from Core > Animation). If your layout is expensive, it is likely that you will need to > maintain a separate "layout is dirty" flag to avoid this. > -- > David Duncan > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > 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: > http://lists.apple.com/mailman/options/cocoa-dev/mr.redd%40gmail.com > > This email sent to mr.r...@gmail.com > -- Bryce _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
