1 files changed, 16 insertions, 0 deletions
diff --git a/java/com/android/contacts/common/compat/ContactsCompat.java b/java/com/android/contacts/common/compat/ContactsCompat.java
index e0c9b7e53..39d0b55d3 100644
--- a/java/com/android/contacts/common/compat/ContactsCompat.java
+++ b/java/com/android/contacts/common/compat/ContactsCompat.java
@@ -21,6 +21,7 @@ import android.os.Build.VERSION;
 import android.os.Build.VERSION_CODES;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Contacts;
+import com.android.dialer.compat.CompatUtils;
 
 /** Compatibility class for {@link ContactsContract.Contacts} */
 public class ContactsCompat {
@@ -28,6 +29,8 @@ public class ContactsCompat {
   // TODO: Use N APIs
   private static final Uri ENTERPRISE_CONTENT_FILTER_URI =
       Uri.withAppendedPath(Contacts.CONTENT_URI, "filter_enterprise");
+  // Copied from ContactsContract.Contacts#ENTERPRISE_CONTACT_ID_BASE, which is hidden.
+  private static final long ENTERPRISE_CONTACT_ID_BASE = 1000000000;
 
   /** Not instantiable. */
   private ContactsCompat() {}
@@ -38,4 +41,17 @@ public class ContactsCompat {
     }
     return Contacts.CONTENT_FILTER_URI;
   }
+
+  /**
+   * Return {@code true} if a contact ID is from the contacts provider on the enterprise profile.
+   */
+  public static boolean isEnterpriseContactId(long contactId) {
+    if (CompatUtils.isLollipopCompatible()) {
+      return Contacts.isEnterpriseContactId(contactId);
+    } else {
+      // copied from ContactsContract.Contacts.isEnterpriseContactId
+      return (contactId >= ENTERPRISE_CONTACT_ID_BASE)
+          && (contactId < ContactsContract.Profile.MIN_ID);
+    }
+  }
 }