tree 9aba209370a104bfdfa05b550bcb9f846596887b
parent a73abeaf4b7b158664c34124d8df39ad843f7451
author Alan Viverette <alanv@google.com> 1450374159 -0500
committer Alan Viverette <alanv@google.com> 1452608585 +0000

Handle null result from getVirtualChildAt()

Also adds final where the method was being called, adds Nullable
annotation to method, and updates docs.

Bug: 25985497
Change-Id: I847a8507f2e3970f1340cddf4abf8650dda22b35
(cherry picked from commit ad52693cf3dfe3f5e84f5a22fe4c3787f2f2cbfb)