Thanks Luke! That was it - I can drag and drop successfully now. One more question, how do I modify a property of the item I'm dragging around if the property is NOT currently in UICollectionViewLayoutAttributes ... I don't see a call to the datasource or delegate when I select the cell for moving ... so I'm not sure how to change the background color to "red" for instance.
Would I have to add my own view to the superview and manually move it around in the dragging callbacks? Thanks! -Luther On Mon, Mar 7, 2016 at 11:59 AM, Luke Hiesterman <luket...@apple.com> wrote: > I’d check your return value for this method in your layout: > > - (UICollectionViewLayoutAttributes > *)layoutAttributesForInteractivelyMovingItemAtIndexPath:(NSIndexPath > *)indexPath withTargetPosition:(CGPoint)position NS_AVAILABLE_IOS(9_0); > > Luke > > On Mar 7, 2016, at 9:55 AM, Luther Baker <lutherba...@gmail.com> wrote: > > I followed the directions here, > > http://nshint.io/blog/2015/07/16/uicollectionviews-now-have-easy-reordering/ > - to add iOS9 style dragging to my UICollectionView - and it sort of works. > > As described in the article, I added a long press gesture recognizer and > wired it in to make calls on the collection view -- but now, if I long > press, the element under my finger disappears. As I drag the transparent > image around, the other elements shift - but I can never see the element I > am dragging around. When I let go, there is simply a hole left where I > "dropped" the element. > > I do, very much, have a custom layout and I'm not sure that if, for drag, I > need to do anything special. Do I need to calculate the frame of the item I > am dragging around? I'm not sure what to try next except to roll my own > dragging. Any thoughts or things to try? > > Thanks in advance. > _______________________________________________ > > 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/luketheh%40apple.com > > This email sent to luket...@apple.com > > > _______________________________________________ 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
