commit e09e0b4ea04b6b6b0ef6c62979e8abdead0bf378
author Yigit Boyar <yboyar@google.com> Wed Sep 30 14:59:46 2015 -0700
committer Yigit Boyar <yboyar@google.com> Tue Oct 06 16:58:26 2015 -0700
tree 42bdba762d4dbb557f05811ce7e78ba38704e59b
parent e3697d8e5cf35f9c64f88c77a7916444b0560eda

Cleanup for item tracking

This CL abstracts the Item tracking for RecyclerView. This makes
it much easier to test (better encapsulation) + cleaner code.
And as an added bonus, I merged some maps to speedup lookups.

There is also a small (unreleased) API change for the new
ItemAnimation callbacks. It was wrong in the first one but didn't
realize because SimpleItemAnimator was taking care of it.

I've also added some support annotations & fixed some warnings.

Bug: 24665726
Change-Id: Idba09e749f1c0f269d81dbdee4056f6b52ba8484