Question

The documentation at http://developer.android.com/reference/android/database/sqlite/SQLiteOpenHelper.html#getWritableDatabase%28%29 states:

Database upgrade may take a long time,
you should not call this method
[getWritableDatabase] from the
application main thread, including
from ContentProvider.onCreate().

This begs the question: for best practice, where should getWritableDatabase be called from?

My feeling is that, perhaps, it should be called once upon application launch with a callback to mark the database as ready. Is this correct?

Answer 1

For small and agile databases I imagine this isn’t much of an issue.

Otherwise, I’d use an always-wonderful AsyncTask, called from onCreate.