Question

Hello me again ( sorry )

I’m tiring to populate spinner from sqlitle and it is working fine BUT my table looks like:

_id | Name | Time | ….

_id: is self incremental number always unique
Name: is name of person, repeats on many lines in this table

I want to put in spinner all names from this row but uniq no duplicates.
how I’m doing it now:

private void updateSpiner(){
Spinner nameSpinner = (Spinner) findViewById(R.id.spinMena);

    Cursor nameCursor = db.getNames();
    startManagingCursor(nameCursor);

    String[] from = new String[]{"Name"}; 
    int[] to = new int[]{android.R.id.text1};

    SimpleCursorAdapter nameAdapter = new SimpleCursorAdapter(this, android.R.layout.simple_spinner_item, nameCursor, from, to);
            nameSpinner.setAdapter(nameAdapter);
        }

here is how I get the data:

public Cursor getNames(){
        final String KEY_TITLE = "Name";
        final String KEY_ROWID = "_id";
        return database.query("plan", new String[] {KEY_ROWID, KEY_TITLE}, null, null, null, null, null);
    }

can somebody explain to me why I need to get also _id row for this, I’m still now to Java and I don’t see why I need it, except if I don’t do it it will complain that there is no _id.

Buts it is not used in first method I get only Names from it… because of _id I can’t use in query DISTINCT = true because it still return all rows as _id is unique for each line..

Could someone help me to wrap my head around it ? I don’t want to make separate table or something..

Thanks,
Vlad

Answer 1

In my case, I couldn’t get this work with SimpleCursorAdapter, What I had to do was, use ArrayAdapter instead of simplecursoradapter and add DISTINCT clause in the query after removing ID field from the query. Here is link for discussion on Why _id field required for simplecursor adapter