commit eaeb50271e5a584634c97306faccb82c3342aa73
author Weng Su <wengsu@google.com> Fri Jan 29 17:24:51 2021 +0800
committer Weng Su <wengsu@google.com> Mon Feb 01 03:34:01 2021 +0000
tree ce589af11b601a2b0752067ca8ff2ab74c03202a
parent 8865c08a85b57802a7e177f2fae9a7f3ca90fcda

[Security Report] Fix Settings WifiScanModeActivity Overlaid issue

- Disallowed non system overlay windows

- Screenshot
  https://screenshot.googleplex.com/77fJ9QN6pV4zFYc

Bug: 174047492
Test: manual test

Merged-In: Ia7acad6d456ce5ebea2d982d4cb063d4f28cbfff
Change-Id: Ia7acad6d456ce5ebea2d982d4cb063d4f28cbfff
(cherry picked from commit d47d8e4fc5959ea5cc57dc074d572a81ec6ddcb0)

src/com/android/settings/wifi/WifiScanModeActivity.java

diff --git a/src/com/android/settings/wifi/WifiScanModeActivity.java b/src/com/android/settings/wifi/WifiScanModeActivity.java
index 024dc10..9d50281 100644
--- a/src/com/android/settings/wifi/WifiScanModeActivity.java
+++ b/src/com/android/settings/wifi/WifiScanModeActivity.java
@@ -25,6 +25,7 @@
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
 import android.text.TextUtils;
+import android.view.WindowManager;
 
 import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.DialogFragment;
@@ -43,6 +44,8 @@
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        getWindow().addSystemFlags(
+                WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         Intent intent = getIntent();
         if (savedInstanceState == null) {
             if (intent != null && WifiManager.ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE