UITextView line height

1. How do I size a UITextView to its content?
2. Does UITextView have intrinsic content size?

How do I size a UITextView to its content?

It can be done using the UITextView contentSize . This will not work if auto layout is ON. With auto layout, the general approach is to use the sizeThatFits method and update the constant value on a height constraint. CGSize sizeThatShouldFitTheContent = [_textView sizeThatFits:_textView.

Does UITextView have intrinsic content size?

UITextView doesn't provide an intrinsicContentSize, so you need to subclass it and provide one. To make it grow automatically, invalidate the intrinsicContentSize in layoutSubviews.