tree f18c00e42510e79a6e677d83f01752ae12427417
parent 0f3f71f41a1cb60fde4ab60d6a4bb1a189ba5920
author Matthew Ng <ngmatthew@google.com> 1519426927 -0800
committer Matthew Ng <ngmatthew@google.com> 1519426927 -0800

Fixes crash when tap on nav bar without using quickstep

Fixes crash on nav bar by setting default pos/states of home button and
track opacity to avoid null error when tapping the nav bar before using
quick scrub. Also fixes the lack of animation of quick scrub when it
retracts.

Fixes: 73814434
Test: tap the nav bar upon reboot (or kill sysui process) before using
quickscrub

Change-Id: I2d35dcdf6e860ffb3959d48b4a4cdc319e939d1b