tree 726a3b9bfb4894696ca181db3ecab5c48882f2ed
parent bd0003da9931fba40216172941d265df6ea83f3f
author Riddle Hsu <riddlehsu@google.com> 1561617458 -0600
committer Riddle Hsu <riddlehsu@google.com> 1561958974 +0800

Preload overview activity in background

To reduce the jank when swiping-up the overview which is not
ready yet, we restart the overview activity if the process
was died and update its configuration if there is change.

Bug: 127350205
Test: manual - Enable 2-button or gesture navigation.
      Swipe-up overview after:
      Case 1: Other app is in foreground and kill the process
              of launcher.
      Case 2: Change configuration, e.g. font size, language.

Change-Id: Ia6e365cc0faf3765781484d040bdddd4e10a2650