Change background color of an item in Android ListActivity onListItemClick

Question

I know it sounds very simple, and there are questions about this. But none of it could solve my problem. So here we go:

I want to change background color of a list item

Answer 1

Sure thing. I would do this in the getView() method of a custom ListAdapter.

MyAdapter extends SimpleAdapter {
    private ArrayList coloredItems = new ArrayList();

    public MyAdapter(...) {
        super(...);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View v = super.getView(position, convertView, parent);

        if (coloredItems.contains(position)) {
            v.setBackgroundColor(Color.CYAN);
        } else {
            v.setBackgroundColor(Color.BLACK); //or whatever was original
        }

        return v;
    }
}

Update coloredItems when a list item is clicked.

@Override
public void onListItemClick(ListView l, View v, int position, long id) {
    if (coloredItems.contains(position)) {
        //remove position from coloredItems
        v.setBackgroundColor(Color.BLACK); //or whatever was original
    } else {
        //add position to coloredItems
        v.setBackgroundColor(Color.CYAN);
    }
}