From a4bf8c8410b2d9a769b5cab34a3cf521e4747b45 Mon Sep 17 00:00:00 2001
From: Louis Chang <louischang@google.com>
Date: Wed, 27 Oct 2021 17:16:34 +0800
Subject: [PATCH] Allowing activity visible behind translucent adjacent
 TaskFragments

An activity that behind the adjacent TaskFragments were invisible
regardless if the TaskFragments are translucent or not.

Allowing the activity to be visible in that case, just like a
TaskFragment can be visible while it is behind translucent
adjacent TaskFragments.

Bug: 203086979
Test: atest SplitActivityLifecycleTest
Change-Id: Ib487940778c856e2dd916376e98940fa17ee9012
---
 .../android/server/wm/EnsureActivitiesVisibleHelper.java  | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/services/core/java/com/android/server/wm/EnsureActivitiesVisibleHelper.java b/services/core/java/com/android/server/wm/EnsureActivitiesVisibleHelper.java
index cddb1e7edb3be..badb1f5a0a12d 100644
--- a/services/core/java/com/android/server/wm/EnsureActivitiesVisibleHelper.java
+++ b/services/core/java/com/android/server/wm/EnsureActivitiesVisibleHelper.java
@@ -119,8 +119,12 @@ class EnsureActivitiesVisibleHelper {
 
                 if (adjacentTaskFragments != null && adjacentTaskFragments.contains(
                         childTaskFragment)) {
-                    // Everything behind two adjacent TaskFragments are occluded.
-                    mBehindFullyOccludedContainer = true;
+                    if (!childTaskFragment.isTranslucent(starting)
+                            && !childTaskFragment.getAdjacentTaskFragment().isTranslucent(
+                                    starting)) {
+                        // Everything behind two adjacent TaskFragments are occluded.
+                        mBehindFullyOccludedContainer = true;
+                    }
                     continue;
                 }