NSNotification_Example

FirstMenuViewController.h

#import <UIKit/UIKit.h>
#import "ViewController.h"
@interface FirstMenuViewController : UIViewController


- (IBAction)sendValue:(id)sender;


@end

FirstMenuViewController.m

#import "FirstMenuViewController.h"

@interface FirstMenuViewController ()

@property (nonatomic, strong) ViewController *viewcontroller;

@end

@implementation FirstMenuViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

- (IBAction)sendValue:(id)sender {
    
    if (nil == self.viewcontroller) {
        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]];
        self.viewcontroller = [storyboard instantiateViewControllerWithIdentifier:@"viewcontroller"];
        self.viewcontroller.Name = @"tutorial";
        
    }
    
    [[NSNotificationCenter defaultCenter]postNotificationName:@"NameNotification" object:nil];
}
@end

ViewController.h

#import <UIKit/UIKit.h>
#import "FirstMenuViewController.h"

@interface ViewController : UIViewController

@property (weak, nonatomic) IBOutlet UILabel *lblName;

@property (nonatomic, copy) NSString *Name;

@end

ViewController.m

#import "ViewController.h"

@interface ViewController (){
    
    
}

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(showName) name:@"NameNotification" object:nil];
    
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


-(void)showName{
    
    self.lblName.text = self.Name;
}


@end