如何在可变高度的UITableViewCell中使用UITextView ?

I am interested in creating a UITableViewCell with a UITextView inside of it, which adjusts its height (to a certain maximum) as the user types more or less text into the UITextView. I know how to add the UITextView to a custom UITableViewCell--but how might I change the UITableViewCell's height as the user is in the process of typing? Is this possible to do?I am interested in creating a UITableViewCell w