Template for a list adapter which uses a view holder to cache lookups.

ViewHoldingAdapter.java

public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder vh = ViewHolder.get(convertView, parent);
    Item item = getItem(position);
    
    vh.title.setText(item.title);
    vh.subtitle.setText(item.subtitle);

    return vh.root;
}

public class ViewHolder {
    public static ViewHolder get(View convertView, ViewGroup parent) {
        if (convertView == null) {
            return new ViewHolder(parent);
        }
        return (ViewHolder)convertView.getTag(); 
    }
 
    public final View root;
    public final TextView title;
    public final TextView subtitle;
    
    private ViewHolder(ViewGroup parent) {
        root = LayoutInflater.from(parent.getContext()).inflate(R.layout.whatever, parent, false);
        root.setTag(this);
     
	title = (TextView) root.findViewById(R.id.title);
	subtitle = (TextView) root.findViewById(R.id.subtitle);
    }
}