Disable notification settings access from work apps.

Fixes: 79241388
Test: the following command does not open the notification settings in
work profile user:
$ adb shell am start --user $USER -W -a android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS
Moreover, triggering the notifications from a sample app results in the
new toast being displayed.

Change-Id: I0a330a9cf22c813aea7600557660868263817e1e

src/com/android/settings/notification/NotificationAccessSettings.java

@@ -23,10 +23,12 @@ import android.content.ComponentName;
 import android.content.Context;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.os.UserManager;
 import android.provider.SearchIndexableResource;
 import android.provider.Settings;
 import android.service.notification.NotificationListenerService;
 
+import android.widget.Toast;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
@@ -61,6 +63,18 @@ public class NotificationAccessSettings extends ManagedServiceSettings {
 
     private NotificationManager mNm;
 
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        final Context ctx = getContext();
+        if (UserManager.get(ctx).isManagedProfile()) {
+            // Apps in the work profile do not support notification listeners.
+            Toast.makeText(ctx, R.string.notification_settings_work_profile, Toast.LENGTH_SHORT)
+                .show();
+            finish();
+        }
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.NOTIFICATION_ACCESS;