[Settings] eSIM existance detection rule change

1. eSIM retrieved from SubscriptionManager#getAvailableSubscriptionInfoList()
should be considered as existed all the time.

2. When SIM are both inactive(or active), sorted the ordering based on ordering provided by telephony framework.

Bug: 195090132
Bug: 195091953
Test: local
Change-Id: I2fe43a35e5b7965bde3b579e2297e9cdd89ec228

src/com/android/settings/network/helper/SubscriptionGrouping.java

@@ -16,6 +16,7 @@
 package com.android.settings.network.helper;
 
 import android.os.ParcelUuid;
+import android.util.Log;
 
 import androidx.annotation.Keep;
 import androidx.annotation.VisibleForTesting;
@@ -44,9 +45,12 @@ import java.util.stream.Collectors;
  */
 public class SubscriptionGrouping
         implements UnaryOperator<List<SubscriptionAnnotation>> {
+    private static final String LOG_TAG = "SubscriptionGrouping";
 
     // implementation of UnaryOperator
     public List<SubscriptionAnnotation> apply(List<SubscriptionAnnotation> listOfSubscriptions) {
+        Log.d(LOG_TAG, "Grouping " + listOfSubscriptions);
+
         // group by GUID
         Map<ParcelUuid, List<SubscriptionAnnotation>> groupedSubInfoList =
                 listOfSubscriptions.stream()
@@ -89,8 +93,8 @@ public class SubscriptionGrouping
         annoSelector = annoSelector
                 // eSIM in front of pSIM
                 .thenComparingInt(anno -> -anno.getType())
-                // subscription ID in reverse order
-                .thenComparingInt(anno -> -anno.getSubscriptionId());
+                // maintain the ordering within from list given
+                .thenComparingInt(anno -> annoList.indexOf(anno));
         return annoList.stream().sorted(annoSelector).findFirst().orElse(null);
     }
 }