app crashed when it updates symbols and changes Map style multiple times 2

[trunglehuynh]

2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: Build fingerprint: 'samsung/gts3lwifixx/gts3lwifi:8.0.0/R16NW/T820XXU2BRL1:user/release-keys'
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: Revision: '5'
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: ABI: 'arm64'
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: pid: 15418, tid: 15418, name: etectionapp.dev >>> co.airspace.ground.detectionapp.dev <<<
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x10
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: Cause: null pointer dereference
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x0 0000000000000000 x1 0000007fcdf4f590 x2 0000000000000000 x3 0000007381b0761a
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x4 0000007fcdf4f570 x5 0000008000000000 x6 0000ffffffffffff x7 ffffffffffffffff
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x8 0dbd3c4c99070669 x9 0dbd3c4c99070669 x10 0000000000430000 x11 0000000000000010
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x12 0000000000000000 x13 ffffffffffff0000 x14 0000007381ae5d20 x15 0000000000000000
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x16 0000007381bbf650 x17 0000007383302880 x18 0000000000000020 x19 0000007381cd7900
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x20 00000000181b4670 x21 0000007386f18a60 x22 0000007fcdf4f9d0 x23 0000007365a69f09
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x24 0000000000000004 x25 0000007381cc4a98 x26 0000000000000000 x27 0000000000000003
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: x28 0000007fcdf4f6f0 x29 0000007fcdf4f6c0 x30 0000007363a698c8
2019-02-05 15:53:06.022 15837-15837/? A/DEBUG: sp 0000007fcdf4f650 pc 0000007363a698c8 pstate 0000000040000000
2019-02-05 15:53:06.027 15837-15837/? A/DEBUG: backtrace:
2019-02-05 15:53:06.027 15837-15837/? A/DEBUG: #00 pc 00000000000908c8 /data/app/co.airspace.ground.detectionapp.dev-qXdAWyRHaOc-eidddBQQog==/lib/arm64/libmapbox-gl.so
2019-02-05 15:53:06.027 15837-15837/? A/DEBUG: #1 pc 0000000000511100 /system/lib64/libart.so (art_quick_generic_jni_trampoline+144)
2019-02-05 15:53:06.027 15837-15837/? A/DEBUG: #2 pc 00000000000d3d6c /dev/ashmem/dalvik-jit-code-cache_15418_15418 (deleted)

###Steps to reproduce

1. update SymbolLayer, FillExtrusionLayer, LineLayer and change Map style at multiple times
2. app just crashes

Configuration

Android versions: 8.1
Device models:
Mapbox SDK versions: 7.1.1

[tobrun]

@trunglehuynh
a null pointer deference indicates you are executing layer/source code when the style has already been destroyed. To fix this, only update your layers when a style is fully loaded and recreate layers if a new style is being loaded.

[trunglehuynh]

Thank @tobrun
I want to lock map style until finished updating, such as:

synchronized (mapBox.getStyle()) {

if (mapBox.getStyle() == null || !mapBox.getStyle().isFullyLoaded()) return;

updateUI();
}

does it work?

what will happen if a user rotates their phone when the app is updating layer/source?

Is there any way I can get a more useful error log?

Thanks

[tobrun]

what will happen if a user rotates their phone when the app is updating layer/source?

That depends on your configuration, if the view hierarchy is destroyed, your style will be destroyed and thus the underlying layers/sources.
if not, the other components will remain valid.