swift - UITextView change dynamically font -

swift - UITextView change dynamically font -

hello i'm using next code observe new line on uitextview

func textview(textview: uitextview, shouldchangetextinrange range: nsrange, replacementtext text: string) -> bool { allow newline:bool = text == "\n" if newline { println("new line") } homecoming true }

i want alter font when new line occurs first thing seek use

if newline { textview.typingattributes = highlighttypingattributes } else { textview.typingattributes = normaltypingattributes }

the other thing set attributed string alter whole text want append bold font after new line happens

any ideas?

thanks

swift uitextview nsattributedstring