Question

i want know if it’s possible create a custom delegate in the AppDelegate class, like in this way for instance:

@protocol AppDelegateDelegate <NSObject>

- (void)finishSync:(BOOL)success;

@end

@interface AppDelegate : UIResponder <UIApplicationDelegate> {

@property (nonatomic, weak) id <AppDelegateDelegate> delegate;

@end

it’s possible create something like this? to notify the classes that are registered for this delegate?

EDIT
How i can use the Delegate? for example if i do this:

#import "AppDelegate.h"

@interface MasterViewController : UIViewController <AppDelegateDelegate>

@end

.m

@implementation MasterViewController

...

- (void)viewDidLoad {
  AppDelegate *appController = (AppDelegate *)[[UIApplication sharedApplication] delegate];
  appController.customDelegate = self;

}

in i stay only in that view works, but for example if i switch in SecondViewController that have the same code to implement the delegate, the delegate don’t works anymore neither in the MasterViewController…what i wrong?

Answer 1

Yes, That is fine. You can create delegates anywhere you want and use it anywhere by importing that class. There are no restrictions.