Merge "[Unfold animation] Move the dark scrim below" into tm-qpr-dev am: bcfe2bfba0 am: 050a0e5490

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20519732

Change-Id: Iedb51e1df113423391b1053cd60d356c5ee9f334
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/packages/SystemUI/src/com/android/systemui/unfold/UnfoldLightRevealOverlayAnimation.kt b/packages/SystemUI/src/com/android/systemui/unfold/UnfoldLightRevealOverlayAnimation.kt
index d411e34..ae30ca0 100644
--- a/packages/SystemUI/src/com/android/systemui/unfold/UnfoldLightRevealOverlayAnimation.kt
+++ b/packages/SystemUI/src/com/android/systemui/unfold/UnfoldLightRevealOverlayAnimation.kt
@@ -94,7 +94,7 @@
                 overlayContainer = builder.build()
 
                 SurfaceControl.Transaction()
-                    .setLayer(overlayContainer, Integer.MAX_VALUE)
+                    .setLayer(overlayContainer, UNFOLD_OVERLAY_LAYER_Z_INDEX)
                     .show(overlayContainer)
                     .apply()
 
@@ -268,4 +268,12 @@
                 this.isFolded = isFolded
             }
         )
+
+    private companion object {
+        private const val ROTATION_ANIMATION_OVERLAY_Z_INDEX = Integer.MAX_VALUE
+
+        // Put the unfold overlay below the rotation animation screenshot to hide the moment
+        // when it is rotated but the rotation of the other windows hasn't happen yet
+        private const val UNFOLD_OVERLAY_LAYER_Z_INDEX = ROTATION_ANIMATION_OVERLAY_Z_INDEX - 1
+    }
 }