same as {@link android.os.AsyncTask} but doesn't have a limit on the number of tasks,plus it uses threads as many as the<br/> number of cores , minus

a thread pool that contains tasks to run like on asyncTask. <br/> also has the ability to use a stack instead of a queue for the order of tasks

a base adapter that allows having multiple sections. each section has its own items. items don't have to be of the same type

This class holds our bitmap caches (memory and disk).

Adapter interface. The list adapter must implement this interface.

A ListView that maintains a header pinned at the top of the list. The pinned header can be pushed up and dissolved as needed.

This gives the ability of searching in a pinnedHead list view

Indicates the current status of the task. Each status will be set only once during the lifetime of a task.