Little tricks to handle rotation on tablets and handset

layouts.xml

<!-- Folder values/layouts.xml -->
<!-- BEGIN_INCLUDE(all) -->
<resources>
    <item name="main_layout" type="layout">@layout/onepane_with_bar</item>
    <bool name="has_two_panes">false</bool>
</resources>
<!-- END_INCLUDE(all) -->


<!--  Folder: values-sw600dp-land/layouts.xml -->
<!-- BEGIN_INCLUDE(all) -->
<resources>
	<item name="main_layout" type="layout">@layout/twopanes</item>
	<bool name="has_two_panes">true</bool>
</resources>
<!-- END_INCLUDE(all) -->

<!--  Folder: values-sw600dp-port/layouts.xml -->
<!-- BEGIN_INCLUDE(all) -->
<resources>
    <item name="main_layout" type="layout">@layout/onepane</item>
    <bool name="has_two_panes">false</bool>
</resources>
<!-- END_INCLUDE(all) -->