如何检查在textview中输入的拼写?

dks*_*725 2 iphone spell-checking objective-c textview

I have one UITextview in which user enter text. after that i take that text as a string and display it in another textview and want the words which are grammatically incorrect.

How to do that?

Gre*_*ein 5

使用自 ios 3.2 开始可用的 UITextChecker 类:Apple 文档