Null access token for facebook - iphone

Question

Hi been struggling with this for the past 2 days. I never had the issue before but the access token being returned from facebook is always null no matter what I do.
The code used is from facebook connect IOS sdk. I used the exact same code in other apps but had no issues but for some reason this doesn't work now.
There are also no error codes being printed.
Thanks.

Answer 1

I use in sessionChangeState, this code:
FBRequest *request = [FBRequest requestForMe];
[request startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary *result, NSError *error) {
NSLog(#"access Token %#", FBSession.activeSession.accessToken);
}];
And it return me access token, try it!

Answer 2

Try this code.You will get access token through self.facebook.accessToken .
call facebookbtnclicked method at view did load or anywhere to get access token.
facebook = [[Facebook alloc] initWithAppId:#"227757844008650"];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]
&& [defaults objectForKey:#"FBExpirationDateKey"])
{
facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
}
-(void)facebookbtnclicked
{
NSLog(#"facebook btn clicked");
[self loginToFacebook:self];
}
- (BOOL) isFaceBookLoggedIn
{
if (self.facebook.accessToken)
{
return YES;
}
else {
return NO;
}
}
- (void) logoutFromFacebook: (id) logoutDelegate
{
fbServiceRequestingobj = logoutDelegate;
[facebook logout:self];
}
- (void)loginToFacebook:(id) loginDelegate
{
NSLog(#"login facebook method");
fbServiceRequestingobj = loginDelegate;
NSArray* permissions = [[NSArray alloc] initWithObjects:
#"publish_stream", nil];
[facebook authorize:permissions delegate:self];
}
-(void) getuserdata
{
NSLog(#"[appDelegate getuserdata]");
if (fbServiceRequestingobj)
{
fbServiceRequestingobj = nil;
}
[facebook requestWithGraphPath:#"me" andDelegate:self];
[facebook requestWithGraphPath:#"me/friends" andDelegate:self];
}
- (void)fbDidLogout
{
NSLog(#"Did Logout");
if (fbServiceRequestingobj)
{
if ([fbServiceRequestingobj respondsToSelector:#selector(fbDidLogout)])
{
[fbServiceRequestingobj performSelector:#selector(fbDidLogout)];
}
}
fbServiceRequestingobj = nil;
}
- (void)request:(FBRequest *)request didFailWithError:(NSError *)error
{
if (fbServiceRequestingobj)
{
if ([fbServiceRequestingobj respondsToSelector:#selector(request:didFailWithError:)])
{
[fbServiceRequestingobj request:request didFailWithError:error];
}
}
fbServiceRequestingobj = nil;
}
-(void)fbDidNotLogin:(BOOL)cancelled
{
if (fbServiceRequestingobj)
{
if ([fbServiceRequestingobj respondsToSelector:#selector(fbDidNotLogin:)])
{
//[fbServiceRequestingobj fbDidNotLogin:cancelled];
}
}
fbServiceRequestingobj = nil;
}
- (void)fbDidLogin
{
NSLog(#"fbDidLogin");
//[facebook requestWithGraphPath:#"me/friends" andDelegate:self];
NSLog(#"accesstoken########%#",self.facebook.accessToken);
}
- (void)requestFinished:(ASIHTTPRequest *)request
{
count++;
NSError *error = [request error];
if (!error)
{
NSString *response = [request responseString];
NSDictionary *respdic=[response JSONValue];
if(![[respdic valueForKey:#"id"] isEqualToString:#""])
{
UIAlertView *alert1=[[UIAlertView alloc] initWithTitle:#"" message:#"Photo posted successfully." delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert1 show];
}
}
}
- (void)request:(FBRequest *)request didLoad:(id)result
{
if ([result isKindOfClass:[NSArray class]])
{
result = [result objectAtIndex:0];
}
if ([result isKindOfClass:[NSDictionary class]])
{
}
}
if ([result isKindOfClass:[NSData class]])
{
UIImage *profilePicture = [[UIImage alloc] initWithData: result];
}
if (fbServiceRequestingobj)
{
if ([fbServiceRequestingobj respondsToSelector:#selector(request:didLoad:)])
{
[fbServiceRequestingobj request:request didLoad:result];
}
}
fbServiceRequestingobj = nil;
};