You're right Kyle. I quickly tried it, saw it worked and moved on. I'll try it again another way and report back
Please excuse mobile typos On Jul 18, 2013, at 1:37 PM, Kyle Sluder <k...@ksluder.com> wrote: > On Thu, Jul 18, 2013, at 01:18 PM, Cody Garvin wrote: >> The UIScrollView adds these subviews to what's called a contentView. This >> is why you have to change a content size to adjust your scrolling, vs >> changing the frame of the UIScrollView. You're grabbing the wrong layer. > > When learning about Auto Layout on iOS, I spent a lot of time exploring > the internals of UIScrollView. My investigations led me to conclude that > there is no such thing as a content view as you describe it. You can see > this for yourself if you call -recursiveDescription on your scroll view > (or any of its ancestors). > > It looks to me like the initial design of UIScrollView—that is, before > the iOS 2.0 SDK ever shipped—was similar to that of NSScrollView on the > Mac. This is why the documentation makes references to "content views." > > At some point before iOS 2.0, this design was changed, and the area > scrolled by the scroll view no longer maps to an actual UIView object. > This is why UITableView and friends are _subclasses_ of UIScrollView, > rather than _subviews_. > > The _contentView ivar, and the private -contentView method, now seem to > exist for the purpose of supporting > -touchesShouldBegin:withEvent:inContentView: and friends. There is no > secret "content view" in the view hierarchy. > > Again, this understanding is derived from poking at UIScrollView's > internals. It is not definitive, and quite likely not (entirely) > correct. But it jibes with my understand of UIScrollView much better > than the "anonymous contentView" theory. > >> You can grab the correct view / layer: [[scrollView contentView] layer]; > > There is no public -contentView method on UIScrollView, so attempting to > call it is likely to get your app rejected by the App Store. Please do > not use this method. > > --Kyle Sluder _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
