public class CommentAdapter extends BaseAdapter {
private List<CommentDTO> comments; // 要绑定的数据
private int resource; // 绑定的一个条目界面的id，此例中即为item.xml
private LayoutInflater inflater; // 布局填充器，它可以使用一个xml文件生成一个View对象，可以通过Context获取实例对象
CoreService cs = CoreService.getCoreService();
public CommentAdapter(Context context, ArrayList<CommentDTO> clist, int resource) {
// TODO Auto-generated constructor stub
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.resource = resource;
this.comments = clist;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return comments.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return comments.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
TextView sendtimev;
TextView commentv;
TextView nicknamev;
ImageView avatarURLv;
ViewCache cache;
if (convertView == null) { // 显示第一页的时候convertView为空
cache = new ViewCache();
convertView = inflater.inflate(resource, null); // 生成条目对象
cache.sendtimev = (TextView) convertView.findViewById(R.id.sendtime);
cache.commentv = (TextView) convertView.findViewById(R.id.comment);
cache.nicknamev = (TextView) convertView.findViewById(R.id.nickname);
cache.avatarURLv = (ImageView) convertView.findViewById(R.id.avatarURL);
convertView.setTag(cache);
} else {
cache = (ViewCache) convertView.getTag();
}
sendtimev = cache.sendtimev;
commentv = cache.commentv;
nicknamev = cache.nicknamev;
avatarURLv = cache.avatarURLv;
CommentDTO comment = comments.get(position);
// 实现数据绑定
String avatarURL = comment.getAvatarURL();
if (avatarURL != null && avatarURL != "") cs.setImageView(avatarURLv, avatarURL);
else avatarURLv.setImageResource(R.drawable.default_avatar);
String sendtime = DateUtils.getRelativeTime(comment.getSendtime());
sendtimev.setText(sendtime);
commentv.setText(comment.getContent());
nicknamev.setText(comment.getNickname());
avatarURLv.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
startActivity_UserProfile();
}
});
return convertView;
}
private static class ViewCache {
public TextView commentv;
public TextView sendtimev;
public TextView nicknamev;
public ImageView avatarURLv;
}
public void startActivity_UserProfile() {
Intent intent =
new Intent(inflater.getContext().getApplicationContext(), Activity_UserProfile.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
inflater.getContext().getApplicationContext().startActivity(intent);
}
}
public void init() throws ServletException {
super.init();
service = CoreService.getCoreService();
}