iOS - equal the UITextView string on the different viewController

How can i equal a UITextView strings with another UItextView on different viewControllers

on ViewController1 :

UItextView *textView1;

on ViewController2 :

UITextView *textView2;

so when user enter some text in "textView" on ViewController2 the string of textView should开发者_开发技巧 be equal with textLayer on ViewController1

I don't know how can I relate each other ! with button on ViewController2 something like this :

-(IBAction)Done {
[textView2.Text isEqualToString:textView1];
}

and on the ViewController1 should change the string of textView2 as textView1 something like this:

textView1.string = ViewController2.textView2;

Is there is possible way to do so ?

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I understand that you wish to reach a viewcontroller objects' variable from other?

see: How to access a UITextView on another ViewController