ActivityKit 1.0

The Activity Kit adds a few tools to organize application behavior. By creating ILActivity subclasses, you can organize the code for long-running activities that may run independently from the rest of an application in their own classes, while providing an easy-to-use interface for the views and view controllers in your application to interface with the activities and monitor their state.<br /><br />For an example, see how an activity can be written to simulate the multi-alert login process that App Store and the iTunes Music Store use in the included demo.<br /><br />To create a new activity, subclass the ILActivity class and override its -main method to start the job you want the activity to do. Activity code invoked by this kit always executes on the main thread. Your subclass's code must invoke its own -end method when the activity finishes ???*a*? either within -main or later, asynchronously.<br /><br />To run an activity, create a new ILActivitiesSet and add it to the set. An activity starts as soon as it's added. You can also use the -start method on the activity itself ???*a*? this will add the activity to the shared ILActivitiesSet instance. You can access the ILActivitiesSet's properties to retrieve all running activities and even produce live queries you can monitor with KVO.

Requirements:	No special requirements
Platforms:	Mac, Mac OSX
Keyword:	Create,  Executes,  Finishes,  Invoke,  Invoked,  Subclass,  Subclasss,  Thread
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