fbDidLogin not called - iOS - iphone

Question

I'm trying to implement facebook to my iOS app for a school project however I ran into a bit of a snag, namely the fbDidLogin method is not called.
I have created a sample object called FBFetcher as so:
#interface FBFetcher : NSObject <FBDialogDelegate,FBSessionDelegate,FBRequestDelegate> {
Facebook *facebook;
FBFetcher *facebookFetcher;
}
-(void)login;
#property (retain) Facebook *facebook;
#property (retain) FBFetcher *facebookFetcher;
#end
In the FBFetcher.m:
#implementation FBFetcher
#synthesize facebookFetcher,facebook;
-(void)login{
facebook = [[Facebook alloc] initWithAppId:#"...."];
NSArray *permissions = [[NSArray arrayWithObjects: #"offline_access",#"user_about_me", nil] retain];
[facebook authorize:permissions delegate:self];
}
-(void)fbDidLogin {
NSLog(#"Erfolgreich eingeloggt....");
}
#end
In my app delegate:
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [[[controller facebookFetcher] facebook] handleOpenURL:url];
}
I have a separate view controller with n action tied to a UIButton:
facebookFetcher = [[FBFetcher alloc] init];
[facebookFetcher login];
I can access the login and authorization page, however the method fbDidLogin never gets called. Any suggestions?

Answer 1

The method never gets called because when you authorize, you are doing it in Safari. To take care of this, which I think is a bug from Facebook SDK by the way, open the facebook.m file and find the following line:
[self authorizeWithFBAppAuth:YES safariAuth:YES];
and change it to
[self authorizeWithFBAppAuth:NO safariAuth:NO];
This way you will never be sent to Safari, but everything will be done in a dialog.
Just test it and you'll see that the fbDidLogin method will get called.
Hope it will help

Answer 2

What about
- (void)fbDidNotLogin:(BOOL)cancelled
Does that get called?

Answer 3

Look for this function in Facebook.m. This is where Facebook calls your fbDidLogin function. First make sure this is being called, then debug into it. Make sure you've spelled/defined fbDidLogin correctly in your session delegate (no parameters). If not the respondsToSelector will fail and never call your delegate's function.
- (void)fbDialogLogin:(NSString *)token expirationDate:(NSDate *)expirationDate
{
self.accessToken = token;
self.expirationDate = expirationDate;
if ([self.sessionDelegate respondsToSelector:#selector(fbDidLogin)])
{
[_sessionDelegate fbDidLogin];
}
}