android - Why change ListView cursor to null on stop? -

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i've been looking @ examples of cursoradapter implementations make sure i'm doing right.

one thing i've noticed i'm not doing calling changecursor(null) on cursoradapter in activity's onstop() handler.

madapter.changecursor(null);

what purpose of this? i'm willing if there's reason, hate navigating activity, backing activity, , seeing blank screen second until new cursor queried.

what purpose of this?

as falmarri suggests, cursor no longer tied adapter, , can close() cursor without problems. imho, not necessary call changecursor(null) in onstop(). particularly if manage cursor (startmanagingcursor() on activity), android take care of cursor respect activity lifecycle.


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