Invalidate the view to ensure it is redrawn after animators end

In certain scenarios, the view is never redrawn after we set drawDwell to false.
Added additional locally to verify that this is causing the dwell ripple to remain onscreen.

There are 3 animators in this view that respond to user interaction:
 1. dwellPulseOutAnimator (onUdfps finger down and auth is actively happening)
 2. retractDwellAnimator (when auth is successful or has failed, this animator retracts the dwell ripple back to intial hidden state)
 3. fadeDwellAnimator (this zeroes out the alpha of the dwell ripple)

fadeDwellAnimator runs ONLY if we start showing the bouncer AND either of the other 2 animators are still running.
Couple of things that could have caused this bug to happen recently:
 1. The timing of when we transition to bouncer and when the retractDwellAnimator animator finishes could have changed, maybe we are transitioning to bouncer a little earlier than before
 2. Previously. something was forcing the AuthRippleView to be redrawn after we transition to the bouncer, causing the dwell ripple to be hidden, but that is not happening now.

Fixes: 383039518
Test: verified manually, keep authenticating with unenrolled finger until we transition to the bouncer
Flag: EXEMPT bugfix
Change-Id: I3cd0ab7473254953875fadcd7e585da4f8d6eafb

0 files changed, 0 insertions, 0 deletions