Answer by Ronnie for dynamically change TextView font color in ListView

Move the text and color setting code to before setting the tag. Try this code

 if (convertView == null)
    {

        holder = new ViewHolder();

        convertView = mInflater.inflate(R.layout.main, null); 
        holder.text = (TextView)convertView.findViewById(R.id.text);
        TextView tvText = holder.text;
        tvText.setText(item.getTitle());
        if (item.Read())
        {
           tv.setTextColor(Color.Gray);
        }
        convertView.setTag(holder);

    } else {
        holder = (ViewHolder)convertView.getTag();

        TextView tvText = holder.text;
        tvText.setText(item.getTitle());
        if (item.Read())
        {
            tv.setTextColor(Color.Gray);
        }
    }
    return(convertView);