tree e517deb6ef358728e3b2c82d6e6b4b2002e65e18
parent e1b53af498e7d3b78f00f6cb59519c2b5e3bc0ea
author Ilya Matyukhin <ilyamaty@google.com> 1618539827 -0700
committer Ilya Matyukhin <ilyamaty@google.com> 1619480439 -0700

Notify AuthController when fingerprint providers are ready

This change introduces a callback that AuthController can provide to
FingerprintService to get notified when all of the fingerprint providers
are available.

This fixes the bug where UDFPS overlay is not available if SystemUI
starts before the fingerprint HAL, because SystemUI would query the
fingerprint providers on startup.

Bug: 184677066
Test: atest AuthControllerTest
Test: on device

Change-Id: I165d67bdda09ea10dd5aac539c4155e6b158227d