tree 47c58d32f133ba714e85fed0fcf76c2cc55a9f80
parent 9ef0ce1749e626a47d669a3f4b059ba748d2e69e
author Chong Zhang <chz@google.com> 1461349911 -0700
committer Chong Zhang <chz@google.com> 1461351028 +0000

Fix black frame in finishing transition

If either visible or nowVisible is true we need to wait for next
activity to become visible before we destroy the previous activity.

In some code path (eg. clear task top), when starting a new activity,
old activity is first paused and visible set to false with a dummy
transition set. Then finish activity is requested. At this point visible
is already false, but nowVisible is true. We still need to wait for
next app become visible to avoid a black frame shown in between.

bug: 27796252

Change-Id: Ief3d5fc8f11c51a729c424f996ab2597c815e4dd