From cdcebc54027497ddeb0c1298d63bda942323b5d9 Mon Sep 17 00:00:00 2001
From: Sherry Zhou <yuandizhou@google.com>
Date: Wed, 12 Jul 2023 18:25:06 +0000
Subject: Switch to main thread when execute update colors

Test: manual
Bug: 288491055
Change-Id: I9c4c560e04f5c7a57d156743907684480d92d1e1
---
 .../src/com/android/systemui/shared/regionsampling/RegionSampler.kt   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/regionsampling/RegionSampler.kt b/packages/SystemUI/shared/src/com/android/systemui/shared/regionsampling/RegionSampler.kt
index 0fbeb1a054a7..f3296f0632bb 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/regionsampling/RegionSampler.kt
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/regionsampling/RegionSampler.kt
@@ -32,7 +32,7 @@ open class RegionSampler
 @JvmOverloads
 constructor(
     val sampledView: View,
-    mainExecutor: Executor?,
+    val mainExecutor: Executor?,
     val bgExecutor: Executor?,
     val regionSamplingEnabled: Boolean,
     val isLockscreen: Boolean = false,
@@ -166,7 +166,7 @@ constructor(
                         if (isLockscreen) WallpaperManager.FLAG_LOCK
                         else WallpaperManager.FLAG_SYSTEM
                     )
-                onColorsChanged(sampledRegionWithOffset, initialSampling)
+                mainExecutor?.execute { onColorsChanged(sampledRegionWithOffset, initialSampling) }
             }
         )
     }
-- 
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