diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java
index 1f11894de55e4..e7f637421a4de 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationView.java
@@ -111,7 +111,7 @@ abstract class UdfpsAnimationView extends FrameLayout {
         return (int) ((1 - percent) * 255);
     }
 
-    public void onExpansionChanged(float expansion, boolean expanded) {
+    public void onExpansionChanged(float expansion) {
         mAlpha = expansionToAlpha(expansion);
         updateAlpha();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewController.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewController.java
index 94743407f03dc..fb4616a832dcd 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsAnimationViewController.java
@@ -46,7 +46,7 @@ abstract class UdfpsAnimationViewController<T extends UdfpsAnimationView>
     @NonNull final PanelExpansionStateManager mPanelExpansionStateManager;
     @NonNull final DumpManager mDumpManger;
 
-    boolean mNotificationShadeExpanded;
+    boolean mNotificationShadeVisible;
 
     protected UdfpsAnimationViewController(
             T view,
@@ -85,7 +85,7 @@ abstract class UdfpsAnimationViewController<T extends UdfpsAnimationView>
 
     @Override
     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
-        pw.println("mNotificationShadeExpanded=" + mNotificationShadeExpanded);
+        pw.println("mNotificationShadeVisible=" + mNotificationShadeVisible);
         pw.println("shouldPauseAuth()=" + shouldPauseAuth());
         pw.println("isPauseAuth=" + mView.isPauseAuth());
     }
@@ -95,7 +95,7 @@ abstract class UdfpsAnimationViewController<T extends UdfpsAnimationView>
      * authentication.
      */
     boolean shouldPauseAuth() {
-        return mNotificationShadeExpanded;
+        return mNotificationShadeVisible;
     }
 
     /**
@@ -182,8 +182,10 @@ abstract class UdfpsAnimationViewController<T extends UdfpsAnimationView>
         @Override
         public void onPanelExpansionChanged(
                 float fraction, boolean expanded, boolean tracking) {
-            mNotificationShadeExpanded = expanded;
-            mView.onExpansionChanged(fraction, expanded);
+            // Notification shade can be expanded but not visible (fraction: 0.0), for example
+            // when a heads-up notification (HUN) is showing.
+            mNotificationShadeVisible = expanded && fraction > 0f;
+            mView.onExpansionChanged(fraction);
             updatePauseAuth();
         }
     };
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsKeyguardViewController.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsKeyguardViewController.java
index d1ea45cac0810..223eb78044c4d 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsKeyguardViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsKeyguardViewController.java
@@ -211,7 +211,7 @@ public class UdfpsKeyguardViewController extends UdfpsAnimationViewController<Ud
             return false;
         }
 
-        if (mUdfpsRequested && !mNotificationShadeExpanded
+        if (mUdfpsRequested && !mNotificationShadeVisible
                 && (!mIsBouncerVisible
                 || mInputBouncerHiddenAmount != KeyguardBouncer.EXPANSION_VISIBLE)) {
             return false;