How to import an UILabel from one UIViewcontroller to another - xcode

Question

I've got a problem with xcode.
I'm a noob with object-c and xcode so... please help.
I have 2 Viewcontrollers: ViewController (with .m/.h) and HighScores (with .m/.h).
In HighScores I have put a label called first. And in ViewController I have a UITextField called *textField. I want the text in textField to be in the label when I enter the text AND when the score of the game already played is grater than the text already existing in the label ('first').
So,
This is how my HighScore.h looks like:
#import <UIKit/UIKit.h>
#interface HighScores: UIViewController {
IBOutlet UILabel *first;
}
#end
and this is ViewController.m:
#import "ViewController.h"
#import "HighScore.h"
...
NSString *myString = [HighScores.first];
if (score.text > myString) {
NSString *string = [textField text];
[HighScores.first setText:string]
but xcode says there's an error when I type "first" after the dot '.'... How can I make it if I want xCode to recognize the "first" label from HighScore UIViewController in VewController UiViewController?
Thanks!

Answer 1

In your code "first" is a UILabel , it will be generated when view of highScores get loaded .
Because it is a IBOUtlet.
Secondly you are trying yo access with class name .
Make a instance of HighScore class first and than try to acess label "first".
#import <UIKit/UIKit.h>
#interface HighScores: UIViewController
#property (nonatomic , strong)UILabel *firstLabel ;
#end
#implementation HighScores
- (id)initWithNibName:(NSString *)nibName bundle:(NSBundle *)nibBundle
{
self.firstLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 100, 50)];
[self.view addSubview self.firstlabel];
}
#end
than in ViewController.m
HighScore * highscoreObject = [[HighScore alloc]init];
NSString *mystring = [highscoreObject.firstLabel text];
if (score.text > mystring) {
[highscoreObject.firstLabel setText:score.text];
{

Answer 2

Lets use notification , if you are confused in here:
In this case you can also use IBoutlet.
We will throw an notification with the string to be set and read the notification in HighScores and set the label with the string send.
In ViewController.m
if (score.text > myString) {
NSString *string = [textField text];
[[NSNotificationCenter defaultCenter] postNotificationName:#"update" object:string];
}
#interface HighScores: UIViewController
#property (nonatomic , strong) IBOutlet UILabel *firstLabel ;
#end
and in HighScores.m
#implementation HighScores
- (void)viewDidLoad
{
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] removeObserver:self];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(changetext:) name:#"update" object:nil];
}
- (void) changetext:(NSNotification *)notification {
NSLog(#"Received");
self.firstLabel.text = [notification object];
}