session-android/res/menu/conversation_list_batch_archive.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto">

    <item android:title="@string/conversation_list_batch_archive__menu_archive_selected"
          android:id="@+id/menu_archive_selected"
          android:icon="@drawable/ic_archive_white_24dp"
          app:showAsAction="always"/>

</menu>