How do I get the _count in my content provider?

Question

What should I do to get my content provider to return the _count column with the count of records? The documentation says it is automatic, but maybe it\'s only taking about

Answer 1

With cursor.getCount() you can not assure that it returns the real number of items returned. There are much better ways:

1- If you are using Content Providers, you can do a query and use the Column (_COUNT) included in BaseColumns for your projection

@Override
public Cursor query(SQLiteDatabase db, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
    ...

    projection = new String[] {
        ContentContract.NotificationCursor.NotificationColumns._COUNT,
    };

    ...

    Cursor cursor = queryBuilder.query(db, projection, selection, selectionArgs, groupBy, having, sortOrder);
    return cursor;
}

2- To do a rawQuery using SELECT COUNT(*) as @saurabh says in his response.