AuthRippleController: Always finish the LightRevealScrim

The unlock ripple animation triggers a CircleReveal effect of
the LightRevealScrim. The CircleReveal uses a ValueAnimator that
gives in when something else takes over the reveal. If the taking
over happens till the end of the animator, the revealAmount of the
CircleReveal will not be updated, thus leaving a black-white
radial gradient patten in the notification panel background.

Make sure to always finish the reveal in such case, by setting
the revealAmount when the animator is approaching the end.

Test: put an app in landscape, lock the screen, unlock with a
      physical fingerprint sensor, and check the notification panel

Change-Id: Id96404de524b32146bb776210b006b75fd035017
Signed-off-by: Chenyang Zhong <[email protected]>
Signed-off-by: minaripenguin37 <[email protected]>
Signed-off-by: minaripenguin <[email protected]>

Author: jjpprrrr

packages/SystemUI/src/com/android/systemui/biometrics/AuthRippleController.kt

@@ -202,6 +202,10 @@ class AuthRippleController @Inject constructor(
                     addUpdateListener { animator ->
                         if (lightRevealScrim.revealEffect != circleReveal) {
                             // if something else took over the reveal, let's cancel ourselves
+                            // When the animator is almost done, fully reveal the scrim.
+                            if (animator.animatedValue as Float >= 0.9999f) {
+                                lightRevealScrim.revealAmount = 1f
+                            }
                             cancel()
                             return@addUpdateListener
                         }