UICollectionViewRecursion 的 iOS 15 UICollectionView 问题 [英] iOS 15 UICollectionView issue for UICollectionViewRecursion
问题描述
在 Xcode 12 和 iOS 14 之前，该应用程序运行良好，但一旦我升级到 Xcode 13/iOS 15，我的应用程序就停止工作，并出现以下错误日志
The application is working fine till Xcode 12 and iOS 14 but as soon as I upgraded to Xcode 13 / iOS 15 my application stoped working with below error log
2021-11-26 12:49:38.844428+0530 Mitaja[6170:102791] [UICollectionViewRecursion] cv == 0x7feb458e0000 Enabling recursion trigger logging
2021-11-26 12:49:39.040798+0530 Mitaja[6170:102791] [UICollectionViewRecursion] UICollectionView 0x7feb458e0000 Visible cells update scheduled with call stack:
(
0 UIKitCore 0x00007fff24644a06 -[UICollectionView _setNeedsVisibleCellsUpdate:withLayoutAttributes:] + 107
1 UIKitCore 0x00007fff24675708 -[UICollectionView _invalidateLayoutWithContext:] + 1310
2 UIKitCore 0x00007fff246a660c -[UICollectionViewLayout invalidateLayoutWithContext:] + 200
3 UIKitCore 0x00007fff2469a329 -[UICollectionViewFlowLayout invalidateLayoutWithContext:] + 667
4 UIKitCore 0x00007fff246a3b5f -[UICollectionViewFlowLayout _didPerformUpdateVisibleCellsPassWithLayoutOffset:] + 430
5 UIKitCore 0x00007fff24653a33 -[UICollectionView _updateVisibleCellsNow:] + 10438
6 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
7 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
8 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
9 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
10 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
11 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
12 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
13 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
14 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
15 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
16 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
17 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
18 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
19 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
20 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
21 UIKitCore 0x00007fff24653af8 -[UICollectionView _updateVisibleCellsNow:] + 10635
22 UIKitCore 0x00007fff24657447 -[UICollectionView layoutSubviews] + 325
23 UIKitCore 0x00007fff255bcaad -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 2962
24 QuartzCore 0x00007fff2893c2b6 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 548
25 QuartzCore 0x00007fff289474f1 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 65
26 QuartzCore 0x00007fff288830ca _ZN2CA7Context18commit_transactionEPNS_11TransactionEdPd + 652
27 QuartzCore 0x00007fff288bac47 _ZN2CA11Transaction6commitEv + 699
28 QuartzCore 0x00007fff288bbfc8 _ZN2CA11Transaction25flush_as_runloop_observerEb + 60
29 CoreFoundation 0x00007fff20368c77 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
30 CoreFoundation 0x00007fff2036349c __CFRunLoopDoObservers + 541
31 CoreFoundation 0x00007fff20363a4c __CFRunLoopRun + 1126
32 CoreFoundation 0x00007fff20363103 CFRunLoopRunSpecific + 567
33 GraphicsServices 0x00007fff2c851cd3 GSEventRunModal + 139
34 UIKitCore 0x00007fff24ffbe63 -[UIApplication _run] + 928
35 UIKitCore 0x00007fff25000a53 UIApplicationMain + 101
36 Mitaja 0x0000000108209adf main + 63
37 dyld 0x000000010ca84e1e start_sim + 10
38 ??? 0x000000010f5854fe 0x0 + 4552414462
39 ??? 0x0000000000000000 0x0 + 0
40 Mitaja 0x0000000106ff7000 __dso_handle + 0
)
2021-11-26 12:49:40.736245+0530 Mitaja[6170:102791] [UICollectionViewRecursion] <UICollectionView: 0x7feb458e0000; frame = (122.5 0; 291.5 0); clipsToBounds = YES; hidden = YES; autoresize = RM+BM; gestureRecognizers = <NSArray: 0x600002764810>; layer = <CALayer: 0x600002d43b00>; contentOffset: {0, 0}; contentSize: {0, 0}; adjustedContentInset: {0, 0, 0, 0}; layout: <UICollectionViewFlowLayout: 0x7feb43fa4810>; dataSource: <Mitaja.JPostCardVC: 0x7feb452ed000>> is stuck in its update/layout loop. See previous logs in the "UICollectionViewRecursionCategory" to find callers that scheduled a recursive update
2021-11-26 12:49:40.736365+0530 Mitaja[6170:102791] *** Assertion failure in -[UICollectionView _setNeedsVisibleCellsUpdate:withLayoutAttributes:], UICollectionView.m:1511
应该有什么解决办法?
任何帮助将不胜感激.
我试了很多次都没有成功，请帮帮我.
What should be the solution to it?
Any help will be appreciated.
I tried to debug it for many times but no success, please help me with this.
编辑
"UICollectionView (<UICollectionView 0x7fd6ca190000>) 卡在其更新/布局循环中.发生这种情况的原因有很多，包括首选属性未返回一致大小的自调整视图.要调试此问题，请检查控制台应用程序以查看UICollectionViewRecursion"中的日志.类别."
"UICollectionView (<UICollectionView 0x7fd6ca190000>) is stuck in its update/layout loop. This can happen for many reasons, including self-sizing views whose preferred attributes are not returning a consistent size. To debug this issue, check the Console app for logs in the "UICollectionViewRecursion" category."
崩溃的错误描述
推荐答案
我在这里https://github.com/WenchaoD/FSCalendar/issues/1351 回答了类似的问题；初步判断是在layout计算item size时item总宽度超过屏幕宽度.建议在计算item size时使用floor进行四舍五入，暂时解决这个问题；同样的代码是在ios15 Version 2之前可以正常运行；另外很奇怪我在iPhone 11上没有问题，在iPhone 11 Pro max上会出现闪退
I am here https://github.com/WenchaoD/FSCalendar/issues/1351 Answered similar questions on the; The preliminary judgment is that the total width of the item exceeds the screen width when calculating the item size in layout. It is suggested to use floor to round down when calculating the item size to temporarily solve this problem; The same code is in ios15 Version 2 can run normally before; In addition, it is very strange that I have no problem on iPhone 11, and the flash back will appear on iPhone 11 Pro max
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