AndroidでデータバインドアダプタBaseAdapterをカスタマイズする方法

 
  
public class PersonAdapter extends 
  BaseAdapter { 
  
 private List persons;//        
  
 private int resource;//           id，     item.xml 
  
 private LayoutInflater inflater;//      ，       xml      View  ，    Context       
   
  
 public PersonAdapter(Context context, List persons, int resource) {
  inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  this.resource = resource;
  this.persons = persons;
 }
 
  
 @Override
 public int getCount() {//           
  return persons.size();
 }
 
  
 @Override
 public Object getItem(int position) {//      ，          
  return persons.get(position);
 }
 
  
 @Override
 public long getItemId(int position) {//     id
  return position;
 }
 
  
 // ListView     ，                ，                  
 //       :position                     
 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
  TextView nameView = null;
  TextView phoneView = null;
  TextView amountView = null;
  if (convertView == null) {//         convertView  
   convertView = inflater.inflate(resource, null);//       
   nameView = (TextView) convertView.findViewById(R.id.name);
   phoneView = (TextView) convertView.findViewById(R.id.phone);
   amountView = (TextView) convertView.findViewById(R.id.amount);
 
  
   ViewCache cache = new ViewCache();
   cache.amountView = amountView;
   cache.nameView = nameView;
   cache.phoneView = phoneView;
   convertView.setTag(cache);
  } else {
   ViewCache cache = (ViewCache) convertView.getTag();
   amountView = cache.amountView;
   nameView = cache.nameView;
   phoneView = cache.phoneView;
  }
 
  
  Person person = persons.get(position);
  //       
  nameView.setText(person.getName());
  phoneView.setText(person.getPhone());
  amountView.setText(person.getAmount());
  return convertView;
 }
 
  
 private final class ViewCache {
  public TextView nameView;
  public TextView phoneView;
  public TextView amountView;
 }
}