A new sub-class of BitmapDrawable has been created which tracks
when it is being used or cached when running on Gingerbread or
older. A new ImageView subclass has been added to accomplish this,
as well as changes to the LruCache.
Change-Id: I95d3334684703aebb6b09fcd56194cf73e3c2dcf
Signed-off-by: Chris Banes <chrisbanes@google.com>
Changes:
-Use updated versions of ImageWorker & ImageCache from I/O 2012 app
-Use copied DiskLruCache from system (rather than custom)
-Use copied AsyncTask from system (to keep behavior consistent)
-Ensure no strict mode violations or lint errors
-Other misc bug fixes
-Move single-use static methods in Utils to corresponding class
Change-Id: If21e045db1e1a80391169f3c9c9258d48345ab6b