How can I change the background color of list items based on the data being displayed in each item?

Question

I have a list of orders in SQLite which vary in status: assigned, loaded, delivered. I\'d like for each of those orders, when displayed in the list, to have a different colored

Answer 1

if you are using any custom adapter for listview then, you will have a method getView(), in that just call a method before returning, and pass the view(which is returning) and data depending on you want to change the color of the row.

public View getView(int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    View view = convertView;
    if (view == null) {
        LayoutInflater vi = (LayoutInflater) _c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = vi.inflate(R.layout.list_item_var, null);
    }

    TextView varView = (TextView) view.findViewById(R.id.var);
    TextView valueView = (TextView) view.findViewById(R.id.value);

    VarDetails var = _data.get(position);
    setRowColor(view, var.getVar());
    varView.setText(var.var);
    valueView.setText("Value: " + var.value);

    return view;
}
private void setRowColor(View view, String var) {
    if("assigned".equalsIgnoreCase(var)){
        view.setBackgroundColor(Color.rgb(255,0,0));
    }else if("loaded".equalsIgnoreCase(var)){
        view.setBackgroundColor(Color.rgb(0,255,0));
    }else if("delivered".equalsIgnoreCase(var)){
        view.setBackgroundColor(Color.rgb(0,0,255));
    }
}

please change in method depending on you data type.

Answer 2

I would say try to extend CursorAdapter for binding your database with a ListView. And then you can override ListView.dispatchDraw() to customize your Paint object.

Or maybe it's helpful to check this: Customizing Android ListView Items with Custom ArrayAdapter

It uses different images based on weather status. Porting to your problem, you may use 9-patch or programmatically created Drawables as backgrounds, rather than changing stuff in Paint.