From 184753f64fce1cd7a2c17534be393293f1b78f4a Mon Sep 17 00:00:00 2001
From: Meng Wang <mewan@google.com>
Date: Wed, 15 Jun 2016 18:17:06 -0700
Subject: [PATCH] Hide 'Update Emergecy Address' preference w/o carrier support

Bug: 29256401
Change-Id: I59f9d6192d39e2a259e3f2cbee641335d5b8b8d7
---
 src/com/android/settings/WifiCallingSettings.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/com/android/settings/WifiCallingSettings.java b/src/com/android/settings/WifiCallingSettings.java
index b93b24627fa..352e3177196 100644
--- a/src/com/android/settings/WifiCallingSettings.java
+++ b/src/com/android/settings/WifiCallingSettings.java
@@ -349,9 +349,12 @@ public class WifiCallingSettings extends SettingsPreferenceFragment
         mButtonWfcMode.setEnabled(wfcEnabled);
 
         final PreferenceScreen preferenceScreen = getPreferenceScreen();
+        boolean updateAddressEnabled = (getCarrierActivityIntent(context) != null);
         if (wfcEnabled) {
             preferenceScreen.addPreference(mButtonWfcMode);
-            preferenceScreen.addPreference(mUpdateAddress);
+            if (updateAddressEnabled) {
+                preferenceScreen.addPreference(mUpdateAddress);
+            }
         } else {
             preferenceScreen.removePreference(mButtonWfcMode);
             preferenceScreen.removePreference(mUpdateAddress);