1development/samples/ReceiveContentDemo/res/drawable/container_background.xml development/samples/ReceiveContentDemo/res/drawable/thumbnail_background.xml development/samples/ReceiveContentDemo/res/layout/activity_main.xml development/samples/ReceiveContentDemo/res/layout/attachment.xml development/samples/ReceiveContentDemo/res/menu/app_menu.xml development/samples/ReceiveContentDemo/res/values/colors.xml development/samples/ReceiveContentDemo/res/values/strings.xml development/samples/ReceiveContentDemo/res/values/styles.xml development/samples/ReceiveContentDemo/res/xml/file_paths.xml 2