From 7098379555d25db9c2daf4d5e15377e5500726ae Mon Sep 17 00:00:00 2001
From: Grace Jia <xiaotonj@google.com>
Date: Mon, 27 Apr 2020 14:56:11 -0700
Subject: [PATCH] Disable 'Mobile data' selection after removing SIM

Bug: 153895858
Test: Manually remove SIM and test
Change-Id: I5934b01c047172ae2269e77e2fe0945aacba4ca1
Exempt-From-Owner-Approval: Telephony settings
---
 res/values/strings.xml                                     | 3 +++
 .../network/telephony/MobileDataPreferenceController.java  | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/res/values/strings.xml b/res/values/strings.xml
index 6cf3c8c6133..d15be1e7a81 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -10893,6 +10893,9 @@
     <string name="mobile_data_settings_summary_auto_switch">
         Phone will automatically switch to this carrier when in range
     </string>
+    <!-- Mobile network setting screen, summary of Mobile data switch preference when the network
+         is unavailable, the preference selection will be disabled. [CHAR LIMIT=NONE] -->
+    <string name="mobile_data_settings_summary_unavailable">No SIM card available</string>
 
     <!-- Mobile network settings screen, title of item showing the name of the default subscription
      that will be used for calls. This only appears in multi-SIM mode. [CHAR LIMIT=NONE] -->
diff --git a/src/com/android/settings/network/telephony/MobileDataPreferenceController.java b/src/com/android/settings/network/telephony/MobileDataPreferenceController.java
index daee6ababbe..e5d0169ef18 100644
--- a/src/com/android/settings/network/telephony/MobileDataPreferenceController.java
+++ b/src/com/android/settings/network/telephony/MobileDataPreferenceController.java
@@ -128,6 +128,13 @@ public class MobileDataPreferenceController extends TelephonyTogglePreferenceCon
             preference.setEnabled(true);
             preference.setSummary(R.string.mobile_data_settings_summary);
         }
+
+        if (mSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+            preference.setSelectable(false);
+            preference.setSummary(R.string.mobile_data_settings_summary_unavailable);
+        } else {
+            preference.setSelectable(true);
+        }
     }
 
     private boolean isOpportunistic() {