diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 0c62096..cca6ae0 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -232,6 +232,7 @@
     private int mAmbientIndicationBottomPadding;
     private boolean mIsFullWidth;
     private float mDarkAmount;
+    private float mDarkAmountTarget;
     private LockscreenGestureLogger mLockscreenGestureLogger = new LockscreenGestureLogger();
     private boolean mNoVisibleNotifications = true;
     private ValueAnimator mDarkAnimator;
@@ -2590,8 +2591,13 @@
             return;
         }
         if (mDarkAnimator != null && mDarkAnimator.isRunning()) {
-            mDarkAnimator.cancel();
+            if (animate && mDarkAmountTarget == darkAmount) {
+                return;
+            } else {
+                mDarkAnimator.cancel();
+            }
         }
+        mDarkAmountTarget = darkAmount;
         if (animate) {
             mDarkAnimator = ObjectAnimator.ofFloat(this, SET_DARK_AMOUNT_PROPERTY, darkAmount);
             mDarkAnimator.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN);