609a8e29e7b1446b5e4039fc1d6a57aada5a82f3 - platform/frameworks/base

commit	609a8e29e7b1446b5e4039fc1d6a57aada5a82f3	[log] [tgz]
author	Riddle Hsu <riddlehsu@google.com>	Thu Jun 27 16:46:29 2019 -0600
committer	Riddle Hsu <riddlehsu@google.com>	Fri Jun 28 22:47:56 2019 +0800
tree	6a87e9e4fd38ed2ce6b5fa4c1435e117af39c4c5
parent	53aa96d70888088ebb3aec2cfbe75f4637693ee2 [diff]

Add support to preload recents activity in background

The recents activity may be died in background for some reasons.
Then there may have jank when swiping-up the recents because it
needs to initialize at the same time. Especially when the recents
is the home activity. The case of configuration change is similar.

This CL provides the ability to start the recents activity in
background without affecting the foreground applications.

Bug: 127350205
Test: atest RecentsAnimationTest#testPreloadRecentsActivity
Change-Id: Idef72ce986eb910b302953705365437bc5ec2bf8

services/core/java/com/android/server/wm/ActivityRecord.java[diff]
services/core/java/com/android/server/wm/ActivityStack.java[diff]
services/core/java/com/android/server/wm/ActivityStarter.java[diff]
services/core/java/com/android/server/wm/ActivityTaskManagerService.java[diff]
services/core/java/com/android/server/wm/RecentsAnimation.java[diff]
services/tests/wmtests/src/com/android/server/wm/ActivityTestsBase.java[diff]
services/tests/wmtests/src/com/android/server/wm/RecentsAnimationTest.java[diff]

7 files changed