Improving widget transitions:

-> When a widget has no configuration activity, we bind
   and inflate it when the user picks it up. This allows
   us to smoothly transition between it's preview and
   some actual state of the widget when it is dropped.
-> When a widget has a configuration activity, we delay
   the above process until the configuration activity
   has been run at which time we transition between
   the preview and the actual widget.

Change-Id: I5265cd98400d70e5e75c3dcd21e322ed0b352d7b
9 files changed