Cursor returns a count of -1, but items are present?

I am using an SQLite database to store and retreive my app data, and what to check for duplicate entries. I attempt to retrieve all entries where the titles match, as such:

Cursor c = mDb.query(DatabaseHelper.GOALS_TABLE_NAME, 
                     new String[] { Goals.GOAL_ID, Goals.TITLE }, 
                     Goals.TITLE + "='" + title + "'", null, null, null, 
          开发者_如何学Go           null, null);

where title is the one to compare against.

This query runs, but the cursor gives a count of -1. A call without the where clause also returns -1, but I know data is present, as I am able to bind a list view to it.

Is there something I am missing, do I have to populate the cursor somehow?

Thanks in advance,

Venatu

When you do a query(), the Cursor is returned immediately. The query itself is not yet run. Only when you do something that requires a data load will the query be executed. Try executing another method first (e.g., moveToFirst()) before calling getCount() and see if that changes things.