android REST client

retrofit이 무난해 보인다..

[링크 : http://square.github.io/retrofit/]

  [링크 : https://stackoverflow.com/.../how-to-post-raw-whole-json-in-the-body-of-a-retrofit-request]

  [링크 : https://stackoverflow.com/questions/41078866/retrofit-authorization-bearer-token]  bearer

[링크 : https://github.com/PCreations/RESTDroid]

[링크 : https://github.com/stephanenicolas/robospice]

[링크 : https://stackoverflow.com/questions/13444113/rest-api-client-library-for-android]