UI update in background thread issue in iOS 11 beta 4 and above [64469528]

Fixed

Bug

Status Update

No update yet.

Description

de...@gmail.com

created issue #1

Aug 8, 2017 10:51AM

What is the incorrect behavior that you are experiencing?
The App is crashing since the SDK is trying to update UI in the background thread "com.google.Maps.LabelingBehavior". I tried to use the sample PlacePicker App provided by Google, but still facing the same issue.

What should happen instead?
It should not try to update UI in the background thread

Link to the Demo application[1] that reproduces the problem:

https://github.com/googlemaps/maps-sdk-for-ios-samples

Steps to reproduce the problem:
1. Launch the App running on Xcode 9 beta 4 or above, and iOS 11 beta 4 and above.
2. Crashes on launch
3.

Operating system version: Mac OS 10.12.5
Google Maps SDK for iOS version: 2.4.0
Hardware model: iPhone 6, iPad Air 2 running iOS 11 beta 4 and above

-------------------------------------------------------------------
[1] You can fork

https://github.com/googlemaps/maps-sdk-for-ios-samples.git and modify it until it demonstrates the issue

Comments

di...@google.com <di...@google.com> #2Aug 9, 2017 08:07AM

Can you provide the stack trace?

de...@gmail.com <de...@gmail.com> #3Aug 9, 2017 04:45PM

I think this console log would help:

Main Thread Checker: UI API called on a background thread: -[UIApplication applicationState]
PID: 31300, TID: 2413714, Thread name: com.google.Maps.LabelingBehavior, Queue name: com.apple.root.default-qos.overcommit, QoS: 21
Backtrace:
4 GooglePlacePickerDemos 0x00000001069bbef4 GMSIsApplicationInBackground + 53
5 GooglePlacePickerDemos 0x0000000106a5a5ea -[GMSForegroundDispatchQueue initWithName:targetQueue:] + 237
6 GooglePlacePickerDemos 0x0000000106a271a2 _ZN7gmscore6vector4text8GlyphSetC2ERKNS_4base10reffed_ptrINS0_16TextureAtlasPoolEEEPU28objcproto17OS_dispatch_queue8NSObjectPK8__CTFontff + 344
7 GooglePlacePickerDemos 0x0000000106a1967a _ZN7gmscore6vector4text10GlyphCache11GetGlyphSetEPK8__CTFontf + 214
8 GooglePlacePickerDemos 0x0000000106a17dce _ZN7gmscore6vector4text6GLText14PrefetchGlyphsERKNS_4base10reffed_ptrINS1_10GlyphCacheEEERKNSt3__16vectorItNS9_9allocatorItEEEEPK8__CTFontf + 22
9 GooglePlacePickerDemos 0x0000000106a17ed1 _ZN7gmscore6vector4text6GLText14PrefetchGlyphsERKNS_4base10reffed_ptrINS1_10GlyphCacheEEEPK8__CTLinebf + 207
10 GooglePlacePickerDemos 0x00000001069fdc4f _ZN7gmscore6vector12GLPointLabel22PrefetchGlyphsForGroupEPNS0_12GLLabelGroupE + 181
11 GooglePlacePickerDemos 0x00000001069fdb77 _ZN7gmscore6vector12GLPointLabel14PrefetchGlyphsEv + 33
12 GooglePlacePickerDemos 0x0000000106a12143 _ZN7gmscore6vector16LabelingBehavior23CreatePendingOperationsERKNSt3__13setINS_4base10reffed_ptrINS0_7GLLabelEEENS2_4lessIS7_EENS2_9allocatorIS7_EEEESE_SE_NS0_13LabelDrawModeE + 1093
13 GooglePlacePickerDemos 0x0000000106a11b11 _ZN7gmscore6vector16LabelingBehavior14RunLabelingJobERKNS_4base10reffed_ptrINS1_11LabelingJobEEE + 357
14 GooglePlacePickerDemos 0x0000000106a1199e ___ZN7gmscore6vector16LabelingBehavior14CommitInternalEPNS_8renderer14EntityRendererE_block_invoke + 22
15 Foundation 0x000000010ae37ff8 __NSThreadPerformPerform + 334
16 CoreFoundation 0x000000010ba28ef1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
17 CoreFoundation 0x000000010bac8011 __CFRunLoopDoSource0 + 81
18 CoreFoundation 0x000000010ba0d8e9 __CFRunLoopDoSources0 + 185
19 CoreFoundation 0x000000010ba0cecf __CFRunLoopRun + 1279
20 CoreFoundation 0x000000010ba0c759 CFRunLoopRunSpecific + 409
21 Foundation 0x000000010adf245e -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 274
22 GooglePlacePickerDemos 0x0000000106a4feb9 -[GMSx_GTMSimpleWorkerThread main] + 337
23 Foundation 0x000000010adffedc __NSThread__start__ + 1197
24 libsystem_pthread.dylib 0x000000010cfeb93b _pthread_body + 180
25 libsystem_pthread.dylib 0x000000010cfeb887 _pthread_body + 0
26 libsystem_pthread.dylib 0x000000010cfeb08d thread_start + 13
2017-08-09 22:14:34.392200+0530 GooglePlacePickerDemos[31300:2413714] [reports] Main Thread Checker: UI API called on a background thread: -[UIApplication applicationState]
PID: 31300, TID: 2413714, Thread name: com.google.Maps.LabelingBehavior, Queue name: com.apple.root.default-qos.overcommit, QoS: 21
Backtrace:
4 GooglePlacePickerDemos 0x00000001069bbef4 GMSIsApplicationInBackground + 53
5 GooglePlacePickerDemos 0x0000000106a5a5ea -[GMSForegroundDispatchQueue initWithName:targetQueue:] + 237
6 GooglePlacePickerDemos 0x0000000106a271a2 _ZN7gmscore6vector4text8GlyphSetC2ERKNS_4base10reffed_ptrINS0_16TextureAtlasPoolEEEPU28objcproto17OS_dispatch_queue8NSObjectPK8__CTFontff + 344
7 GooglePlacePickerDemos 0x0000000106a1967a _ZN7gmscore6vector4text10GlyphCache11GetGlyphSetEPK8__CTFontf + 214
8 GooglePlacePickerDemos 0x0000000106a17dce _ZN7gmscore6vector4text6GLText14PrefetchGlyphsERKNS_4base10reffed_ptrINS1_10GlyphCacheEEERKNSt3__16vectorItNS9_9allocatorItEEEEPK8__CTFontf + 22
9 GooglePlacePickerDemos 0x0000000106a17ed1 _ZN7gmscore6vector4text6GLText14PrefetchGlyphsERKNS_4base10reffed_ptrINS1_10GlyphCacheEEEPK8__CTLinebf + 207
10 GooglePlacePickerDemos 0x00000001069fdc4f _ZN7gmscore6vector12GLPointLabel22PrefetchGlyphsForGroupEPNS0_12GLLabelGroupE + 181
11 GooglePlacePickerDemos 0x00000001069fdb77 _ZN7gmscore6vector12GLPointLabel14PrefetchGlyphsEv + 33
12 GooglePlacePickerDemos 0x0000000106a12143 _ZN7gmscore6vector16LabelingBehavior23CreatePendingOperationsERKNSt3__13setINS_4base10reffed_ptrINS0_7GLLabelEEENS2_4lessIS7_EENS2_9allocatorIS7_EEEESE_SE_NS0_13LabelDrawModeE + 1093
13 GooglePlacePickerDemos 0x0000000106a11b11 _ZN7gmscore6vector16LabelingBehavior14RunLabelingJobERKNS_4base10reffed_ptrINS1_11LabelingJobEEE + 357
14 GooglePlacePickerDemos 0x0000000106a1199e ___ZN7gmscore6vector16LabelingBehavior14CommitInternalEPNS_8renderer14EntityRendererE_block_invoke + 22
15 Foundation 0x000000010ae37ff8 __NSThreadPerformPerform + 334
16 CoreFoundation 0x000000010ba28ef1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
17 CoreFoundation 0x000000010bac8011 __CFRunLoopDoSource0 + 81
18 CoreFoundation 0x000000010ba0d8e9 __CFRunLoopDoSources0 + 185
19 CoreFoundation 0x000000010ba0cecf __CFRunLoopRun + 1279
20 CoreFoundation 0x000000010ba0c759 CFRunLoopRunSpecific + 409
21 Foundation 0x000000010adf245e -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 274
22 GooglePlacePickerDemos 0x0000000106a4feb9 -[GMSx_GTMSimpleWorkerThread main] + 337
23 Foundation 0x000000010adffedc __NSThread__start__ + 1197
24 libsystem_pthread.dylib 0x000000010cfeb93b _pthread_body + 180
25 libsystem_pthread.dylib 0x000000010cfeb887 _pthread_body + 0
26 libsystem_pthread.dylib 0x000000010cfeb08d thread_start + 13

de...@gmail.com <de...@gmail.com> #4Aug 9, 2017 04:47PM

Comment has been deleted.

Message last modified on May 6, 2021 11:48AM

ra...@gmail.com <ra...@gmail.com> #5Sep 14, 2017 06:50AM

Just wanted to add the this problem is still present in the GM version of Xcode 9

di...@google.com <di...@google.com> Sep 14, 2017 08:01AM

Accepted by di...@google.com.

di...@google.com <di...@google.com> #6Oct 24, 2017 10:17AM

Marked as fixed.

We believe that this issue should be solved in the Maps iOS SDK v2.5 release. If this issue still occurs, please let us know.

Issue 64469528