@objc UIView.skeletonLayoutSubviews() EXC_BAD_ACCESS (KERN_PROTECTION_FAILURE)

[iamjcabarra]

Description

I've been seeing crash reports from Firebase related to SkeletonView.

What type of issue is this? (place an x in one of the [ ])

• bug
• enhancement (feature request)
• question
• documentation related
• discussion

Requirements (place an x in each of the [ ])

• I've read and understood the Contributing guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've searched for any related issues and avoided creating a duplicate issue.

---

Bug Report

Filling out the following details about bugs will help us solve your issue sooner.

SkeletonView Environment:

SkeletonView version:
1.29.2
Xcode version:
14.1
Swift version:
5.2

Steps to reproduce:

I wasn't able to reproduce myself.

Expected result:

*Should not crash the app.

Actual result:

*It crashes the app.

Attachments:

Crashed: com.apple.main-thread
0 libswiftCore.dylib 0x41ffdc swift_getInitializedObjCClass + 4
1 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
2 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
3 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
4 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
5 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
6 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
7 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
8 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
9 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
10 SEA 0x15a8400 @objc UIView.skeletonLayoutSubviews() + 2331228 (:2331228)
11 PrintKitUI 0x2580 -[UIPrinterSearchingViewAccessibility layoutSubviews] + 56
12 UIKitCore 0x4860 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1980
13 QuartzCore 0x9b0c CA::Layer::layout_if_needed(CA::Transaction*) + 500
14 QuartzCore 0x1d1c0 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 148
15 QuartzCore 0x2e534 CA::Context::commit_transaction(CA::Transaction*, double, double*) + 444
16 QuartzCore 0x63930 CA::Transaction::commit() + 652
17 QuartzCore 0x4cbb4 CA::Transaction::flush_as_runloop_observer(bool) + 88
18 CoreFoundation 0x91d40 CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 36
19 CoreFoundation 0x1a290 __CFRunLoopDoObservers + 532
20 CoreFoundation 0x7bc60 __CFRunLoopRun + 1048
21 CoreFoundation 0x80ec0 CFRunLoopRunSpecific + 612
22 GraphicsServices 0x1368 GSEventRunModal + 164
23 UIKitCore 0x3a186c -[UIApplication _run] + 888
24 UIKitCore 0x3a14d0 UIApplicationMain + 340
25 SEA 0x8284 main + 25 (FatAppDelegate.swift:25)
26 ??? 0x1e21a2960 (Missing)

[AikenCod]

same question

[ihnatmoisieiev]

Same issue. Any updates here?

[BarMalka]

Same issue, any updates on this issue?

[Kevin-007]

Crashed: com.apple.main-thread
0 libswiftCore.dylib 0x406590 swift_getInitializedObjCClass + 4
1 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
2 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
3 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
4 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
5 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
6 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
7 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
8 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
9 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
10 My App 0x1c8a80c @objc UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20)
11 PrintKitUI 0x1560 -[UIPrinterSearchingViewAccessibility layoutSubviews]
12 UIKitCore 0x10918 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1528
13 QuartzCore 0x7f26c CA::Layer::layout_if_needed(CA::Transaction*) + 504
14 QuartzCore 0x7edf0 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 148
15 QuartzCore 0xd9fd8 CA::Context::commit_transaction(CA::Transaction*, double, double*) + 464
16 QuartzCore 0x4eee0 CA::Transaction::commit() + 648
17 QuartzCore 0x98c34 CA::Transaction::flush_as_runloop_observer(bool) + 88
18 UIKitCore 0xb9ee8 _UIApplicationFlushCATransaction + 52
19 UIKitCore 0xb7660 _UIUpdateSequenceRun + 84
20 UIKitCore 0xb72a4 schedulerStepScheduledMainSection + 172
21 UIKitCore 0xb8148 runloopSourceCallback + 92
22 CoreFoundation 0x56834 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 28
23 CoreFoundation 0x567c8 __CFRunLoopDoSource0 + 176
24 CoreFoundation 0x54298 __CFRunLoopDoSources0 + 244
25 CoreFoundation 0x53484 __CFRunLoopRun + 828
26 CoreFoundation 0x52cd8 CFRunLoopRunSpecific + 608
27 GraphicsServices 0x11a8 GSEventRunModal + 164
28 UIKitCore 0x40aae8 -[UIApplication _run] + 888
29 UIKitCore 0x4bed98 UIApplicationMain + 340
30 My App 0x470c main + 14 (main.swift:14)
31 ??? 0x1b2787154 (Missing)

hello @Juanpe it should be caused by recursive calls in UIView.skeletonLayoutSubviews() + 20 (UIView+Swizzling.swift:20), according the crash log line 11 [UIPrinterSearchingViewAccessibility layoutSubviews] called layoutSubviews-->UIView.skeletonLayoutSubviews()--> then recursive calls in UIView.skeletonLayoutSubviews() itself