uicollectionview crashing rotating iPad fast

0
votes

I usually don't ask for help but this time I really need it.
I have an UICollectionViewinto an UIViewController. I have tried using default UICollectionViewFlowLayout or subclassing it trying to solve this annoying problem.
When I started to rotate the app so fast (from portrait to landscape and going back to portrait) I'm getting this errors:

*** Assertion failure in -[UICollectionViewData validateLayoutInRect:], /SourceCache/UIKit/UIKit-2935.138/UICollectionViewData.m:357

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UICollectionView recieved layout attributes for a cell with an index path that does not exist: {length = 2, path = 2 - 4}'

What I have tried:

  1. Under viewWillLayoutSubviews I have tried with [self.collectionView reloadData]; or [self.collectionView.collectionViewLayout invalidateLayout];
  2. setting [UIView setAnimationEnabled: NO]; in willRotateToInterfaceOrientation setting [UIView setAnimationEnabled: YES]; in didRotateToInterfaceOrientation
  3. Tried what I found in this link UICollectionView assertion error on stale data



Digging about similar problems I found those 3 but none of them is what I'm looking for:

All the data is downloaded before show theUICollectionView and I'm using cell created in XIB.
I guess it's about spamming invalidateLayout because the UICollectionView has not finished the last "layout process" when the app is calling invalidateLayout again... but I'm not sure.

1
objective-cios7uicollectionviewuicollectionviewlayout

1 Answers

1
votes

It's been a long time since I posted this question, but I had to come back to the project in where I was using this code and I found that the problem was solved for Apple in iOS release 8.3.

Details: link

Orientation and rotation fixes
* Addresses an issue that sometimes prevented rotating back to portrait after having rotated to landscape

* Improves performance and stability issues that occurred when rotating the device between portrait and landscape

I tested it in 2 devices and is working perfectly