callback method

MainView Controller:

.h file

#import "callbackcontroller.h"

@interface EventListViewController : UIViewController <EventCallbackDelegate>

.m file

CreateEventViewController * next = [[CreateEventViewController alloc]init];

next.delegate = self;

[self presentViewController: next animated:YES completion:nil];

//Callback Method Function

-(void)refreshviewevent{

NSLog(@"Do your code");

}

CallBack ViewController

.h file

@protocol EventCallbackDelegate <NSObject>

-(void)refreshviewevent;

@end

@interface CreateEventViewController : UIViewController

@property (strong,nonatomic) id <EventCallbackDelegate> delegate;

@end

.m file

//put callback place

[self.delegate refreshviewevent];