[Animation] +[UIView setAnimationsEnabled:] being called from a background thread.

[markstrefford]

I am following this tutorial, but instead rendering this on an object in a Portal SCNNode.

https://catchar.io/article/how-to-use-gifs-with-arkit-tutorial

I'm getting the following error/warning when I run this on iOS 13.3. I can't see where you are calling a background thread. Can you help?

	0   UIKitCore                           0x0000000191b6cb1c D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 15252252
	1   libdispatch.dylib                   0x0000000102ddabd8 _dispatch_client_callout + 16
	2   libdispatch.dylib                   0x0000000102ddc4c8 _dispatch_once_callout + 84
	3   UIKitCore                           0x0000000191b6ca80 D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 15252096
	4   UIKitCore                           0x0000000191b6cc08 D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 15252488
	5   UIKitCore                           0x0000000190eb15cc D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 1902028
	6   UIKitCore                           0x0000000191913918 D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 12790040
	7   UIKitCore                           0x000000019171a42c D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 10720300
	8   UIKitCore                           0x0000000191911668 D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 12781160
	9   UIKitCore                           0x000000019171798c D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 10709388
	10  UIKitCore                           0x00000001917187ac D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 10713004
	11  UIKitCore                           0x0000000191718510 D7630067-7A00-3CB7-99E1-E7F6C55D85C5 + 10712336
	12  SceneKit                            0x00000001a17f37cc B091EE87-4252-3FDF-9133-EE12604E7250 + 2283468
	13  SceneKit                            0x00000001a17f3930 B091EE87-4252-3FDF-9133-EE12604E7250 + 2283824
	14  SceneKit                            0x00000001a1813740 B091EE87-4252-3FDF-9133-EE12604E7250 + 2414400
	15  SceneKit                            0x00000001a1685d8c B091EE87-4252-3FDF-9133-EE12604E7250 + 785804
	16  SceneKit                            0x00000001a1656138 B091EE87-4252-3FDF-9133-EE12604E7250 + 590136
	17  SceneKit                            0x00000001a1656060 B091EE87-4252-3FDF-9133-EE12604E7250 + 589920
	18  SceneKit                            0x00000001a1678d14 B091EE87-4252-3FDF-9133-EE12604E7250 + 732436
	19  SceneKit                            0x00000001a1675f80 B091EE87-4252-3FDF-9133-EE12604E7250 + 720768
	20  SceneKit                            0x00000001a1674cc0 B091EE87-4252-3FDF-9133-EE12604E7250 + 715968
	21  SceneKit                            0x00000001a1673c30 B091EE87-4252-3FDF-9133-EE12604E7250 + 711728
	22  SceneKit                            0x00000001a179c870 B091EE87-4252-3FDF-9133-EE12604E7250 + 1927280
	23  SceneKit                            0x00000001a179c5c4 B091EE87-4252-3FDF-9133-EE12604E7250 + 1926596
	24  SceneKit                            0x00000001a17a3844 B091EE87-4252-3FDF-9133-EE12604E7250 + 1955908
	25  SceneKit                            0x00000001a162f178 B091EE87-4252-3FDF-9133-EE12604E7250 + 430456
	26  SceneKit                            0x00000001a1630ac8 B091EE87-4252-3FDF-9133-EE12604E7250 + 436936
	27  SceneKit                            0x00000001a1728a4c B091EE87-4252-3FDF-9133-EE12604E7250 + 1452620
	28  SceneKit                            0x00000001a17292b8 B091EE87-4252-3FDF-9133-EE12604E7250 + 1454776
	29  SceneKit                            0x00000001a1729824 B091EE87-4252-3FDF-9133-EE12604E7250 + 1456164
	30  SceneKit                            0x00000001a1729bb8 B091EE87-4252-3FDF-9133-EE12604E7250 + 1457080
	31  SceneKit                            0x00000001a17c4310 B091EE87-4252-3FDF-9133-EE12604E7250 + 2089744
	32  ARKit                               0x00000001a8bb6104 07735CA9-A886-3E01-A19B-BDECD9040A01 + 958724
	33  SceneKit                            0x00000001a168a4f4 B091EE87-4252-3FDF-9133-EE12604E7250 + 804084
	34  SceneKit                            0x00000001a178fb14 B091EE87-4252-3FDF-9133-EE12604E7250 + 1874708
	35  libdispatch.dylib                   0x0000000102ddabd8 _dispatch_client_callout + 16
	36  libdispatch.dylib                   0x0000000102de9858 _dispatch_lane_barrier_sync_invoke_and_complete + 124
	37  SceneKit                            0x00000001a178faa4 B091EE87-4252-3FDF-9133-EE12604E7250 + 1874596
	38  GPUToolsCore                        0x0000000102f695f8 -[DYDisplayLinkInterposer forwardDisplayLinkCallback:] + 168
	39  QuartzCore                          0x0000000193fa3130 3EE40592-F011-38CC-8472-776B3C912A42 + 74032
	40  QuartzCore                          0x000000019406d000 3EE40592-F011-38CC-8472-776B3C912A42 + 901120
	41  CoreFoundation                      0x000000018d5b38ac 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 526508
	42  CoreFoundation                      0x000000018d5dd07c 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 696444
	43  CoreFoundation                      0x000000018d5dc7a8 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 694184
	44  CoreFoundation                      0x000000018d5d767c 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 673404
	45  CoreFoundation                      0x000000018d5d6adc CFRunLoopRunSpecific + 464
	46  Foundation                          0x000000018d916784 7B1733B1-74C9-3A33-8A58-853B0A029826 + 30596
	47  SceneKit                            0x00000001a168a8d0 B091EE87-4252-3FDF-9133-EE12604E7250 + 805072
	48  SceneKit                            0x00000001a168ab18 B091EE87-4252-3FDF-9133-EE12604E7250 + 805656
	49  libsystem_pthread.dylib             0x000000018d379d8c _pthread_start + 156
	50  libsystem_pthread.dylib             0x000000018d37d76c thread_start + 8
)```

[MIOSY]

HI @markstrefford , @kiritmodi2702

Same issue did you found any solution please let me know.

Or any alternative library like this?

[MIOSY]

HI @markstrefford @kiritmodi2702

Just run this in Device.
https://drive.google.com/file/d/1FKHPO6SkdOEZ-w_GFnrU5CeeeMQrNT-h/view?usp=sharing

You just run this project in device and scan dinosaur.png image(added ion xcode) you will get gif playing on top of it. Once if you go back to firstVC that's all app is freezed you can't tap on any button in First VC and also you can't start AR scene again.
I can't figure out this issue why it's happening after palying GIF can you pleach check and let me know.

If anything is required please let me know.. Thanks in advance.

[MIOSY]

Hi All, Issue got fixed.

we have to add imageView layer to the SCNMaterial()

imgMaterial.diffuse.contents = self.imageView.layer

Thanks for your response.