Android：清理AsyncTask

Question

Over time my app using a lot of AsyncTasks, and I noticed in the debugger that they don't go away and even when they are done they still show up as an active thread. Is there any way after the task is done to tell the garbage collector to kill it?

Answer 1

EDIT: Lenik pointed out below that my original answer was not the proper android way to cancel an AsyncTask.

AsyncTask has a complete and elegant system for cancelling. Call the cancel(true) method on your task when you're ready to cancel. If you're running an internal loop, use isCancelled() to check the status, and exit the loop appropriately if it returns true . This has the added benefit of calling your onCancelled(Object) method on the UI thread after cancel(boolean) is invoked and doInBackground(Object[]) has finished. Then set the reference to your task to null.

Thanks Lenik! If you post an answer, I'll delete this one so you receive credit.