tree 1d3c57493258aa10b48a9129b251833b4da8dfa2
parent b08dac228cb560f7c0be17f81220304a09ce3f0e
author Yabin Huang <yabinh@google.com> 1603492658 -0700
committer Yabin Huang <yabinh@google.com> 1604369973 -0800

Initialize the focus properly

1. When an element in the scrollable container is scrolled off the
screen, restore the focus by focusing on the scrollable container.
If the element is removed, do nothing.
2. Lower the focus level of the scrollable container. When restoring
the focus, don't focus on the scrollable container unless there is
no view to take focus.

Fixes: 167300379
Fixes: 171526996

Test: atest CarUILibUnitTests
Test: manual test Media and Dialer

Change-Id: I601eb8a5cb1e0f34e3f48eb1474ab5e9ffd50043