Android中 自定义数据绑定适配器BaseAdapter的方法

 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() {// 得到要绑定的数据总数
  return persons.size();
 }

 @Override
 public Object getItem(int position) {// 给定索引值，得到索引值对应的对象
  return persons.get(position);
 }

 @Override
 public long getItemId(int position) {// 获取条目id
  return position;
 }

 // ListView有缓存功能，当显示第一页页面时会创建页面对象，显示第二页时重用第一页创建好了的对象
 // 取得条目界面:position代表当前条目所要绑定的数据在集合中的索引值
 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
  TextView nameView = null;
  TextView phoneView = null;
  TextView amountView = null;
  if (convertView == null) {// 显示第一页的时候convertView为空
   convertView = inflater.inflate(resource, null);// 生成条目对象
   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);
  // 实现数据绑定
  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;
 }
}