Not rendering background when bypassing

There's not need to render the background when bypassing,
and it lead to ugly animation issues with multiple
notifications.

Bug: 134543453
Test: atest SystemUITests
Change-Id: I8db745c10f3de8cf6943bd2f0607872509bfbdee

1 files changed, 7 insertions, 1 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index e2cb8d4517ff..192373f5a4c5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -837,7 +837,13 @@ public class NotificationStackScrollLayout extends ViewGroup implements ScrollAd
                 break;
             }
         }
-        if (!mAmbientState.isDozing() || anySectionHasVisibleChild) {
+        boolean shouldDrawBackground;
+        if (mKeyguardBypassController.getBypassEnabled() && onKeyguard()) {
+            shouldDrawBackground = isPulseExpanding();
+        } else {
+            shouldDrawBackground = !mAmbientState.isDozing() || anySectionHasVisibleChild;
+        }
+        if (shouldDrawBackground) {
             drawBackgroundRects(canvas, left, right, top, backgroundTopAnimationOffset);
         }