android single choice list selection problem?

Question

friends,

i am using following code to display list with radio buttons now i want to select specific radio button of list by default so using setSelection property which

Answer 1

You'r looking for:

list.setItemChecked(2, true);

Answer 2

I might be completely off, but I think setSelection doesn't necessarely checks your item (as in checkbox, or radio), it navigates to it though.

As a workaround (maybe there is a more elegant solution) you can extend ArrayAdapter and set checked manually in a getView() method.

Add something like this to your class:

private static class MArrayAdapter extends ArrayAdapter<String> {
    public Adapter(final Context context, final String[] objects) {
        super(context, android.R.layout.simple_list_item_single_choice, objects);
    }

    @Override
    public View getView(final int position, final View convertView, final ViewGroup parent) {
        final CheckedTextView view = (CheckedTextView) super.getView(position, convertView, parent);
        view.setChecked(position == 2);
        return view;
    }

}

And change your way of getting an adapter to new MArrayAdapter(this, items);

P.S. On my previous comment, my mistake, you better call setChoiceMode (it's just in my app, I call notifyDataSetChanged, so I don't really need it). I think your'r up to some weird behaviour without choice mode.