public class TweetAdapter extends ArrayAdapter<Tweet> {

    private ViewHolder holder;
    private Tweet tweet;

    public TweetAdapter(Context context, int resource, ArrayList<Tweet> objects) {
        super(context, resource, objects);
    }

    static class ViewHolder {
        ImageView ivProfileImage;
        TextView tvName;
        TextView tvScreenName;
        TextView tvText;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if(convertView == null) {
            convertView = LayoutInflater.from(getContext()).inflate(R.layout.tweet, parent, false);
        }

        holder = new ViewHolder();
        holder.ivProfileImage = (ImageView) convertView.findViewById(R.id.iv_profile_image);
        holder.tvName = (TextView) convertView.findViewById(R.id.tv_name);
        holder.tvScreenName = (TextView) convertView.findViewById(R.id.tv_screen_name);
        holder.tvText = (TextView) convertView.findViewById(R.id.tv_text);

        tweet = getItem(position);

        new ImageLoadTask(tweet.getUser().getProfileImageUrl(), holder.ivProfileImage).execute();
        holder.tvName.setText(tweet.getUser().getName());
        holder.tvScreenName.setText(tweet.getUser().getScreenName());
        holder.tvText.setText(tweet.getText());

        return convertView;
    }