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Crash when selecting a lot of cells in UICollectionView
Hey, I am implementing a "Select All" functionality and experiencing a crash because of running out of memory when having a lot of cells. Calling .selectItem(at:animated:scrollPosition:) on 10k cells need 1.5GB and 20k needs 7GB (crashes on a real device). After selection is completed, memory goes down to normal levels. This broken both on iOS 18.5 and 26.5. Minimal example: https://github.com/martonfarago/collectionViewMemoryTest Is this a know issue? Is there another, maybe more efficient way of selecting all cells? M
Topic: UI Frameworks SubTopic: UIKit
3
0
193
Jul ’26
UIDocumentPickerViewController does not allow picking folders on connected servers on iOS26
Hey there, I have an app that allows picking any folder via UIDocumentPickerViewController. Up until iOS18 users were able to pick folders from connected servers (servers connected in the Files app) as well. On iOS26, the picker allows for browsing into the connected servers, but the Select button is greyed out and does nothing when tapped. Is this a known issue? This breaks the whole premise of my file syncronization application.
6
0
333
Nov ’25
Crash when selecting a lot of cells in UICollectionView
Hey, I am implementing a "Select All" functionality and experiencing a crash because of running out of memory when having a lot of cells. Calling .selectItem(at:animated:scrollPosition:) on 10k cells need 1.5GB and 20k needs 7GB (crashes on a real device). After selection is completed, memory goes down to normal levels. This broken both on iOS 18.5 and 26.5. Minimal example: https://github.com/martonfarago/collectionViewMemoryTest Is this a know issue? Is there another, maybe more efficient way of selecting all cells? M
Topic: UI Frameworks SubTopic: UIKit
Replies
3
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0
Views
193
Activity
Jul ’26
UIDocumentPickerViewController does not allow picking folders on connected servers on iOS26
Hey there, I have an app that allows picking any folder via UIDocumentPickerViewController. Up until iOS18 users were able to pick folders from connected servers (servers connected in the Files app) as well. On iOS26, the picker allows for browsing into the connected servers, but the Select button is greyed out and does nothing when tapped. Is this a known issue? This breaks the whole premise of my file syncronization application.
Replies
6
Boosts
0
Views
333
Activity
Nov ’25