commit 373ded27296eedeee3e0d15fd24757d9b6a49e51
author Mill Chen <millchen@google.com> Tue Jul 16 17:45:46 2019 +0800
committer Manjae Park <manjaepark@google.com> Mon Dec 16 11:46:46 2019 -0800
tree 3eff9515367f9ab3a99548846ac7d945f5232ae9
parent 66bf121fecec73fe2a07061909b855047180cbf9

Prevent accounts page directly opening in screen pinning mode

In Settings there is no auth mechanism to prevent accounts page being
opened in screen pinning mode. This CL makes it so that when users are
trying to navigate to any pages in Settings from other apps in screen
pinning mode, Settings app will directly close its page.

Bug: 137015265
Bug: 135604684
Test: manual
Change-Id: If26eda408a9ef6fa03ad82e5bee51bb7185950d6
Merged-In: If26eda408a9ef6fa03ad82e5bee51bb7185950d6
(cherry picked from commit f3242dab3546c019d4b79c502f7b8850d36123a5)
(cherry picked from commit 3c6a3011fa797bc00e5246b04e961847c0e60a1c)

src/com/android/settings/SettingsActivity.java

diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index 06bdd0c..c0ffc19 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -254,6 +254,12 @@
     @Override
     protected void onCreate(Bundle savedState) {
         super.onCreate(savedState);
+
+        if (isLockTaskModePinned() && !isSettingsRunOnTop()) {
+            Log.w(LOG_TAG, "Devices lock task mode pinned.");
+            finish();
+        }
+
         long startTime = System.currentTimeMillis();
 
         final FeatureFactory factory = FeatureFactory.getFactory(this);
@@ -957,4 +963,18 @@
         Intent intent = new Intent(this, SearchActivity.class);
         startActivity(intent);
     }
+
+    private boolean isLockTaskModePinned() {
+        final ActivityManager activityManager =
+            getApplicationContext().getSystemService(ActivityManager.class);
+        return activityManager.getLockTaskModeState() == ActivityManager.LOCK_TASK_MODE_PINNED;
+    }
+
+    private boolean isSettingsRunOnTop() {
+        final ActivityManager activityManager =
+            getApplicationContext().getSystemService(ActivityManager.class);
+        final String taskPkgName = activityManager.getRunningTasks(1 /* maxNum */)
+            .get(0 /* index */).baseActivity.getPackageName();
+        return TextUtils.equals(getPackageName(), taskPkgName);
+    }
 }