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
5 files changed
