Question

Possible Duplicate:
delegate not being called

I declared a delegate in my appdelegate class, so it looks like:

@protocol LoginDelegate

- (void) loadData:(NSObject *)viewCon;

@end

@class RootViewController;

@class DetailViewController;


@interface TestAppDelegate : NSObject <UIApplicationDelegate, LoginViewControllerDelegate, RKObjectLoaderDelegate> {
   id <LoginDelegate> delegate;
}

@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet UISplitViewController *splitViewController;
@property (nonatomic, retain) IBOutlet RootViewController *rootViewController;
@property (nonatomic, retain) IBOutlet DetailViewController *detailViewController;
@property (nonatomic, assign) id <LoginDelegate> delegate;

@end

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //some code
         [self.delegate loadData:self];
    //some code

    return YES;
}

In my other class then I implement this delegate:

- (void) loadData:(NSObject*)viewCon
{
    NSLog(@"LOADING DATA");
    [[RKObjectManager sharedManager] loadObjectsAtResourcePath:@"/groups.json" delegate: self];
}

However, why is it not getting called?

Answer 1

It is not getting called, because you dont set something as delegate (I assume).

So self.delegate is nil, and as u can send any message to nil, nothings happens

Do you have ((TestAppDelegate *)[[UIApplication sharedApplication]).delegate = self or
((TestAppDelegate *)[[UIApplication sharedApplication]).delegate = aObject somewhere, where self or aObject conforms to your LoginDelegate?

See: Delegation and Protocols