managedQuery()与getContentResolver().query()的区别

managedQuery()与getContentResolver().query()的区别：

Romain Guy写道： http://groups.google.com/group/android-developers/browse_thread/thread/9c887ac024b36798
managedQuery() will use ContentResolver's query(). The difference is
that with managedQuery() the activity will keep a reference to your
Cursor and close it whenever needed (in onDestroy() for instance.) If
you do query() yourself, you *will* have to manage the Cursor as a
sensitive resource. If you forget, for instance, to close() it in
onDestroy(), you will leak underlying resources (logcat will warn you
about it.)


mangedQuery会实际查询的工作还是调用ContentResolver的query这一点与getContentResolver一样，但managedQuery会让Activtiy来帮你管理你的cursor的，而不用你自己去管理。