Merge "check sim state to avoid cachining the wrong resources before sim loaded" into sc-dev am: 3731a3914a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/CellBroadcastReceiver/+/15350563

Change-Id: I1f2e0c2427167630ff8b46e587c1d6d23334ae69

1 files changed, 8 insertions, 1 deletions

diff --git a/src/com/android/cellbroadcastreceiver/CellBroadcastSettings.java b/src/com/android/cellbroadcastreceiver/CellBroadcastSettings.java
index dd4c772cd..c8eb50057 100644
--- a/src/com/android/cellbroadcastreceiver/CellBroadcastSettings.java
+++ b/src/com/android/cellbroadcastreceiver/CellBroadcastSettings.java
@@ -34,6 +34,7 @@ import android.os.UserManager;
 import android.os.Vibrator;
 import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
 import android.util.Log;
 import android.view.MenuItem;
 import android.widget.Switch;
@@ -862,8 +863,14 @@ public class CellBroadcastSettings extends CollapsingToolbarBaseActivity {
      * @return The resource
      */
     public static @NonNull Resources getResources(@NonNull Context context, int subId) {
+        // based on the latest design, subId can be valid earlier than mcc mnc is known to telephony
+        // check if sim is loaded to avoid caching the wrong resources.
+        TelephonyManager tm = context.getSystemService(TelephonyManager.class);
+        boolean isSimLoaded = tm.getSimApplicationState(SubscriptionManager.getSlotIndex(subId))
+                == TelephonyManager.SIM_STATE_LOADED;
         if (subId == SubscriptionManager.DEFAULT_SUBSCRIPTION_ID
-                || !SubscriptionManager.isValidSubscriptionId(subId) || !sUseResourcesForSubId) {
+                || !SubscriptionManager.isValidSubscriptionId(subId) || !sUseResourcesForSubId
+                || !isSimLoaded) {
             return context.getResources();
         }