iphone - Getting Facebook account details -

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i using sharekit facebook , twitter , facebook account details user id,profile name etc.please give suggestions , help.i had got details before not able retrieve it.

please find code below, 

 if ([[nsuserdefaults standarduserdefaults] objectforkey:@"kshkfacebookuserinfo"]){             nsdictionary *facebookuserinfo = [[nsuserdefaults standarduserdefaults] objectforkey:@"kshkfacebookuserinfo"];            fbuseremail = [facebookuserinfo objectforkey:@"email"];             nslog(@"fbid-- %@",fbuseremail);         }         if ([[nsuserdefaults standarduserdefaults] objectforkey:@"kshkfacebookuserinfo"]){             nsdictionary *facebookuserinfo = [[nsuserdefaults standarduserdefaults] objectforkey:@"kshkfacebookuserinfo"];             fbusername = [facebookuserinfo objectforkey:@"name"];             nslog(@"fbname-- %@",fbusername);         }

now gets crashed facebookuserinfo null.

i have tried demo app, , worked well. find, going on, can make break in shkfacebook.m - (void)request:(fbrequest *)fbrequest didload:(id)result, line 411. can see, getting facebook.

to user info, must first fetch facebook:

shkitem *item = [[shkitem alloc] init]; item.sharetype = shksharetypeuserinfo; [shkfacebook shareitem:item];

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