在iPhone的TextView中比较多个字符串

Question

I want to compare all the strings entered in a textview of iphone. Once the user finishes with typing in textview I want to compare strings entered by the user.

How do I do it?

Please help

Answer 1

I am not sure what you define "finishes with typing", here is my guess:

You have to set up your class become UITextViewDelegate and implements some methods:

• If you want to get the text whenever the text changes, use:

- (void)textViewDidChange:(UITextView *)textView

• If you want to get the text whenever the text view resign first responder, use:

- (void)textViewDidEndEditing:(UITextView *)textView

I also don't know what you define by comparing all the NSString. One way to do is put them into NSSet and NSSet itself will remove duplicates of NSString for you