am 323e1a4f: am ddf2040c: am 985f6801: am 5f51b7fb: Bitmapfun Sample: Add some docs and clean up some method naming.

* commit '323e1a4f89ddeab38e4c0d4a42dad87b03621127':
  Bitmapfun Sample: Add some docs and clean up some method naming.