From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tyler Gunn <tgunn@google.com>
Date: Tue, 27 Sep 2022 15:19:05 -0700
Subject: [PATCH] Hide overlay windows when showing phone account
 enable/disable screen.

Hide any system alert window overlays when the screen that lets the user
enable/disable phone accounts is shown.

Test: Manual test with overlay shown from test app; verify that the overlay
is hidden when the phone account selection screen is opened.
Bug: 246933359

Change-Id: Ia0209d57ee9a672cde4196076845d77941dc3f68
(cherry picked from commit a7d57ace5819c4eef340aaf6744ad441d0369035)
Merged-In: Ia0209d57ee9a672cde4196076845d77941dc3f68
---
 AndroidManifest.xml                                           | 2 ++
 .../telecom/settings/EnableAccountPreferenceActivity.java     | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 2e7ca2236..abed4d836 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -22,6 +22,8 @@
 
     <protected-broadcast android:name="android.intent.action.SHOW_MISSED_CALLS_NOTIFICATION" />
 
+    <uses-permission android:name="android.permission.HIDE_NON_SYSTEM_OVERLAY_WINDOWS"/>
+
     <!-- Prevents the activity manager from delaying any activity-start
          requests by this package, including requests immediately after
          the user presses "home". -->
diff --git a/src/com/android/server/telecom/settings/EnableAccountPreferenceActivity.java b/src/com/android/server/telecom/settings/EnableAccountPreferenceActivity.java
index 2367825b3..662e56f61 100644
--- a/src/com/android/server/telecom/settings/EnableAccountPreferenceActivity.java
+++ b/src/com/android/server/telecom/settings/EnableAccountPreferenceActivity.java
@@ -25,11 +25,15 @@ import android.telecom.Log;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.view.MenuItem;
+import android.view.WindowManager;
 
 public class EnableAccountPreferenceActivity extends Activity {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        getWindow().addPrivateFlags(
+                android.view.WindowManager.LayoutParams
+                        .PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
 
         getFragmentManager().beginTransaction()
                 .replace(android.R.id.content, new EnableAccountPreferenceFragment())