UITextView不会更新框架，除非在新行中键入两个或更多字符

Question

I noticed a strange behaviour with UITextView.

I logged it's height in textViewDidChange , and found that it's height stays the same unless there are two or more characters on a new line. This is giving me some serious issues. Anyone knows a fix?

Using [textView sizeThatFits:textView.frame.size] returns the correct size as soon as a new line is created.

I am using autolayout and my UITextView is embedded in a UITableViewCell

Answer 1

您应该通过最大高度来代替textView.frame.size，例如：

[textView sizeThatFits:CGSizeMake(textView.frame.size.width, MAXFLOAT)]