Merge "Prevent errors when updating operator pref summary" am: 5a19cea4ef am: c855a8a21a

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/1364660

Change-Id: Ibdb29f86401439a66c9aa3a456454e6caadddffa

src/com/android/settings/network/telephony/NetworkSelectSettings.java

@@ -223,9 +223,13 @@ public class NetworkSelectSettings extends DashboardFragment {
                     setProgressBarVisible(false);
                     getPreferenceScreen().setEnabled(true);
 
+                    if (mSelectedPreference != null) {
                         mSelectedPreference.setSummary(isSucceed
                                 ? R.string.network_connected
                                 : R.string.network_could_not_connect);
+                    } else {
+                        Log.e(TAG, "No preference to update!");
+                    }
                     break;
                 case EVENT_NETWORK_SCAN_RESULTS:
                     final List<CellInfo> results = (List<CellInfo>) msg.obj;