tree 3d2ff82ff51915565911a7f2f81372383c177a73
parent e9be092a253dab583e76f7b20a0ac04ea683bcec
author Kevin Jin <kjin@google.com> 1374890482 -0700
committer Kevin Jin <kjin@google.com> 1375733488 -0700

add scroll API
clean up Events usage
revise some JavaDoc

Change-Id: Ib67fa6ecea5d7a3ef8325bc4e1778645c46d6741