ListView或者GridView中我们常常用到了BaseAdapter，下面一个例子来说明BaseAdapter是在ListView或者GridView中是如何使用的，如下：
public class TransactionAdapter extends BaseAdapter {
private List listList;
private Context mContext;
public TransactionAdapter(List listList,Context mContext) {
this.listList = listList;
this.mContext = mContext;
}
@Override
public intgetCount() {
return listList.size();
}
@Override
public Object getItem(intposition) {
return listList.get(position);
}
@Override
public long getItemId(intposition) {
Log.d("tag",position+"");
return position;
}
@Override
public View getView(int position,View convertView,ViewGroup parent) {
ViewHolder viewHolder;
if(convertView ==null) {
convertView = LayoutInflater.from(mContext).inflate(R.layout.item_transaction_list,parent, false);
viewHolder = new ViewHolder();
viewHolder.tv_item_country= (TextView) convertView.findViewById(R.id.tv_item_country);
viewHolder.tv_item_btc= (TextView) convertView.findViewById(R.id.tv_item_btc);
viewHolder.tv_item_parities= (TextView) convertView.findViewById(R.id.tv_item_parities);
convertView.setTag(viewHolder);
}else{
viewHolder = (ViewHolder) convertView.getTag();
}
if(listList!=null) {
Log.i("TAG---",listList.size()+"");
ABean aBean =listList.get(position);
if(aBean!=null){
viewHolder.tv_item_country.setText(aBean.getName());
viewHolder.tv_item_parities.setText(aBean.getBankConversionPri());
viewHolder.tv_item_btc.setText(aBean.getFBuyPri());
}}
return convertView;
}
public class ViewHolder {
public TextViewtv_item_country,tv_item_btc,tv_item_parities;
}}