src/main/res/values-sw600dp/refs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!--
Layout alias to replace the single-pane version of the layout with a
two-pane version on Large screens.
For more on layout aliases, see:
http://developer.android.com/training/multiscreen/screensizes.html#TaskUseAliasFilters
-->
<item name="fragment_item" type="layout">@layout/fragment_item_grid</item>
</resources>