Xcode / Objective-C Facebook Delegate Attempt - objective-c

Question

I'm trying to understand how a delegate works by using the Facebook SDK.
I have this as my view controller:
#import <UIKit/UIKit.h>
#import "FBConnect.h"
#import "FacebookClass.h"
#interface ViewController : UIViewController
#property (nonatomic, retain) Facebook *facebook;
- (IBAction)btnPress:(id)sender;
#end
#import "ViewController.h"
#implementation ViewController
#synthesize facebook;
- (void)viewDidLoad
{
[super viewDidLoad];
FacebookClass *delegate = [[FacebookClass alloc] init];
facebook = [[Facebook alloc] initWithAppId:#"228051460617035" andDelegate:delegate];
// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)btnPress:(id)sender {
[facebook authorize:nil];
}
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [self.facebook handleOpenURL:url];
}
...and other default viewcontroller methods
Then in my FacebookClass ..which I want to use as the delegate...I have:
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import "FBConnect.h"
#interface FacebookClass : NSObject
<UIApplicationDelegate, FBSessionDelegate>
#end
#import "FacebookClass.h"
#implementation FacebookClass
- (void)fbDidLogin {
NSLog(#"Logged in");
}
- (void)fbDidExtendToken:(NSString*)accessToken
expiresAt:(NSDate*)expiresAt {
NSLog(#"Extended it");
}
- (void)fbDidNotLogin:(BOOL)cancelled
{
NSLog(#"Did not login");
}
- (void)fbDidLogout
{
NSLog(#"Logged out");
}
- (void)fbSessionInvalidated
{
NSLog(#"Session not valid");
}
#end
So what I want to happen is for when I log in, I want it to log the string "Logged in" in the console. As of now, it doesn't. Clearly, I'm confused.
Update:
Added delegate instantiation.

Answer 1

Your object FBDelegate is nil. It is never instanced. You should in your
- (void)viewDidLoad
method instance it doing:
FBDelegate = [[FacebookClass alloc] init];