Question

How would I filter the returned contacts by the groupName?

@Override
public void onItemSelected(AdapterView<?> parent, View view, int pos,
        long id) {
    String groupName = parent.getItemAtPosition(pos).toString();
    Log.i(this.toString(), String.format("Show Group: %s", groupName));

    Cursor cur = this.getContentResolver().query(
            ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
    if (cur.getCount() > 0) {
        while (cur.moveToNext()) {
            String name = cur
                    .getString(cur
                            .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
            if (name != null) {
                Log.i(this.toString(), String.format("Show: %s", name));
            }
        }

        cur.close();
    }
}

Answer 1

I was able to filter contacts by group by using the following query:

Cursor c = this.managedQuery(Data.CONTENT_URI, new String[] {
                    Contacts.DISPLAY_NAME, Contacts._ID },
                    GroupMembership.GROUP_ROW_ID + " = ?",
                    new String[] { groupId }, Phone.TIMES_CONTACTED + " DESC");

Obviously you need to know the Group Id in order to complete this, how I did this was used a SimpleCursorAdapter to a Spinner w/the following Cursor:

Cursor c = managedQuery(Groups.CONTENT_URI,
                        new String[] { Groups.SYSTEM_ID, Groups._ID,},
                        Groups.SYSTEM_ID + " NOT NULL",
                        null, null);