Weird UI Rotation issues when using UICollectionView - UITableView is perfect though

Originator:rgropmair
Number:rdar://17200804 Date Originated:06/06/2014
Status:Open Resolved:
Product:iOS Product Version:7.1 and 8 beta
Classification:other bug Reproducible:always
 
Summary:
When I use a collection view and rotate the device, UIKit tries to animate between the landscape & portrait layout. The result is very weird, especially when viewed in slow motion in the simulator: gaps between the cells appear, the cell sizes jump etc. 
I have attached two movies and a sample Xcode project to demonstrate this issue

Steps to Reproduce:
open testCVC and run in slow motion on simulator 

Expected Results:
I would expect the rotation animation works identically on table and collection view: no gaps between cells, no jumping of content views, not cells appearing out of nowhere

Actual Results:
gaps during rotation
content views are jumping and appearing
rotation animation just looks broken

Version:
iOS 7.1 and iOS 8 beta

Configuration:
iPhone and iOS simulator

Comments


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