자료- android shape drawable

http://overoid.tistory.com/tag/xml

open api 관련

http://gimmehide.tistory.com/254

트위트 api 관련

http://arisu.mireene.com/xe/textyle/2654

facebook api 관련

http://www.sitehis.com/spb3/sboard3/read.php?db=talk&cateuid=12&uid=235