Hi,

The query doesn't actually do much. The Cursor is lazily loaded so
it's only the first method call to access data (like getCount()) that
loads the content of the rows.

> On the other hand if I query some ContentProvider (using getContext
> ().getContentResolver().query()) then this query takes about 100
> milliseconds to finish, which is understood. But then first call (and
> subsequent calls) to any of Cursor methods described above is very
> fast.

The performance of getContentResolver().query() depends on what the
provider uses as a backend. A Cursor is not necessarily backed by a
database. Also, it will depend on how much data you are querying and
returning.

-- 
Romain Guy
Android framework engineer
romain...@android.com

Note: please don't send private questions to me, as I don't have time
to provide private support.  All such questions should be posted on
public forums, where I and others can see and answer them

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