Question

I’ve been stuck on this for a while. I want the user to be able to pick an item from the list (just by tapping the item, no checkbox) and have it light up or something so it’s obvious that it’s selected. The user can pick as many as they want, and finally they can hit “Done” to finalize their selection.

How can I go about doing this? I have a custom adapter and row layout.

Answer 1

Create a hashmap or something else to help you to keep count which item’s on list selected:

HashMap<Integer, Boolean> selectedItems = new HashMap<Integer, Boolean>();

And in your Adapter’s getView method

@Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View v = convertView;
        if (v == null) {
            LayoutInflater inflater = (LayoutInflater) ctx
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = inflater.inflate(R.layout.your_custom_item, null);
        }

        if(selectedItems.get(position))
            v.setBackgroundColor("YOURSELECTEDCOLOR");
        else v.setBackgroundColor("YOURUNSELECTEDCOLOR");

        return v;
    }

And you should of course set your hashmap items onItemClickListener.