app/src/main/res/xml/backup_descriptor.xml
<?xml version="1.0" encoding="utf-8"?>
<full-backup-content>
<!-- T O D O Remove the following "exclude" elements to make them a part of the auto backup -->
<!-- Exclude the shared preferences file that contains the GCM registrationId -->
<!--<exclude-->
<!--domain="sharedpref"-->
<!--path="AutoFreezeApplicationList.xml" />-->
</full-backup-content>