From 5f72c92e2b7b624e2b2f639a1b295a3a1f7fc47f Mon Sep 17 00:00:00 2001
From: Adrian Roos <roosa@google.com>
Date: Tue, 8 Mar 2016 15:54:26 -0800
Subject: [PATCH] Fix flashing of the scrim

Bug: 27345657
Change-Id: I4a20d86c678a46159466b8f68fe8f429554be950
---
 .../systemui/statusbar/phone/ScrimController.java      | 10 ++++++++++
 1 file changed, 10 insertions(+)

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 fe76ae7515206..cafa566c94df6 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -89,6 +89,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
     private boolean mForceHideScrims;
     private boolean mSkipFirstFrame;
     private boolean mDontAnimateBouncerChanges;
+    private boolean mKeyguardFadingOutInProgress;
 
     public ScrimController(ScrimView scrimBehind, ScrimView scrimInFront, View headsUpScrim,
             boolean scrimSrcEnabled) {
@@ -331,12 +332,16 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
                 if (mOnAnimationFinished != null) {
                     mOnAnimationFinished.run();
                     mOnAnimationFinished = null;
+                    mKeyguardFadingOutInProgress = false;
                 }
                 scrim.setTag(TAG_KEY_ANIM, null);
                 scrim.setTag(TAG_KEY_ANIM_TARGET, null);
             }
         });
         anim.start();
+        if (mAnimateKeyguardFadingOut) {
+            mKeyguardFadingOutInProgress = true;
+        }
         if (mSkipFirstFrame) {
             anim.setCurrentPlayTime(16);
         }
@@ -371,6 +376,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
                 && mOnAnimationFinished != null) {
             mOnAnimationFinished.run();
             mOnAnimationFinished = null;
+            mKeyguardFadingOutInProgress = false;
         }
     }
 
@@ -423,6 +429,10 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
     }
 
     private void updateScrim(boolean animate, View scrim, float alpha, float currentAlpha) {
+        if (mKeyguardFadingOutInProgress) {
+            return;
+        }
+
         ValueAnimator previousAnimator = StackStateAnimator.getChildTag(scrim,
                 TAG_KEY_ANIM);
         float animEndValue = -1;