From 1cc61672ef9ea78f79cfdb55f4e732bd50b06e34 Mon Sep 17 00:00:00 2001
From: Bonian Chen <bonianchen@google.com>
Date: Tue, 17 Aug 2021 09:46:00 +0800
Subject: [PATCH] [Settings] Avoid from floating overlay when displaying SIM
 selection UI

Avoid from floating overlay when displaying SIM selection UI, which
could avoid from security issue.

Bug: 195667589
Test: local
Change-Id: I8db76005f2c3ad6cc94d68703b2b1647d81371f5
---
 src/com/android/settings/sim/SimDialogActivity.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/com/android/settings/sim/SimDialogActivity.java b/src/com/android/settings/sim/SimDialogActivity.java
index 252b6c06e25..e5457ae3459 100644
--- a/src/com/android/settings/sim/SimDialogActivity.java
+++ b/src/com/android/settings/sim/SimDialogActivity.java
@@ -24,6 +24,7 @@ import android.telecom.TelecomManager;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.util.Log;
+import android.view.WindowManager;
 import android.widget.Toast;
 
 import androidx.fragment.app.Fragment;
@@ -59,6 +60,8 @@ public class SimDialogActivity extends FragmentActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        getWindow().addSystemFlags(
+                WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         showOrUpdateDialog();
     }