Update the text of textField from another class

I'm trying to update one textfield from another class:

I have two classes:

  @interface FlipsideViewController : UIViewController <PostDistanceControllerDelegate>  {
id <FlipsideViewControllerDelegate> delegate;

IBOutlet UITextField *currentStatus;
IBOutlet UITextField *currentUpdateDate;
}
@property ...

In my FlipsideViewController.m I can use:

@implementation FlipsideViewController

//....

- (IBAction)done:(id)sender{
   currentStatus.text=@"TOTO";
}

Now I have a second class in which I'm trying to update the text from the first class...

@implementation OthersideViewController

-(void)setStatus{
   [FlipsideViewController currentStatus.text=@"TEST"};
}

I know I can't re-initialize the controller because it's already initialized. I tried to extern the currentStatus field and it doesn't work. I tried using a getter and a setter as your would do in Java and it the debugger says: unrecognized selector

Any idea?

You're trying to set a property of a member by sending a message to the class and that's why it doesn't work. You'll need to have a reference to the instance of FlipViewSideController and call such as:

-(void)setStatus{
   [FlipsideViewControllerInstance currentStatus.text=@"TEST"};
}

So either you pass the FlipViewController instance to your setStatus method as a parameter

-(void)setStatusOfViewControllerLabel:(FlipViewController *) FlipsideViewControllerInstance {
   [FlipsideViewControllerInstance currentStatus.text=@"TEST"};
}

or you keep a reference to it in your OthersideViewController object.

Edited for clarity.

Assuming you have declared your property and then synthesized it, and you have a "FlipsideViewController *flipside" variable, then you can use

[flipside currentStatus].text = @"TEST";

or

[[flipside currentStatus] setText:@"TEST"];