commit 55a8b47cdba30f0626d4aa7eff93808b85b9e419
author Tracy Zhou <tracyzhou@google.com> Sat Apr 19 15:09:02 2025 -0700
committer Tracy Zhou <tracyzhou@google.com> Sat Apr 19 16:20:22 2025 -0700
tree 3e14bfab5d5de03e033512ad342f4cdab0cc6ddb
parent 1735ebc70465b7c4a3fb8ec3b506856cbf43b47f

Do not linear fade out scrims when collapsing in fallback mode for shade blur

Essentially reuse the pre shade blur alpha update path as shade is collapsed

Fixes: 406232015
Test: video in bug
Flag: com.android.systemui.notification_shade_blur
Change-Id: I0994747bf599924bcbb20de64f1b4216963fca3f

packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
index 236383b..aa20b15 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -1030,7 +1030,7 @@
                     mBehindAlpha = 1;
                     mNotificationsAlpha = behindFraction * getDefaultScrimAlpha();
                 } else {
-                    if (Flags.notificationShadeBlur()) {
+                    if (Flags.notificationShadeBlur() && isBlurCurrentlySupported()) {
                         // TODO (b/390730594): match any spec for controlling alpha based on shade
                         //  expansion fraction.
                         mBehindAlpha = mState.getBehindAlpha() * mPanelExpansionFraction;