Retrieve the friends Email address From Facebook SDK in ios - ios

Question

I am tried to retrieve the Email Address from Facebook Friends.but,It cannot retrieved the email address.
I printed the email address.but,It displays the null.
I added email address in permissions array,FBRequest.
-(void)LoginButtonTapped
{
[FBSession.activeSession openWithCompletionHandler:^(FBSession *session,
FBSessionState state,
NSError *error)
{
if (FBSession.activeSession.isOpen)
{
NSLog(#"TOKEN : %#",[[FBSession activeSession]accessTokenData]);
FBRequest *friendRequest = [FBRequest requestForGraphPath:#"me/friends?fields=name,picture,birthday,email,location"];
[friendRequest startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error)
{
NSArray *data = [result objectForKey:#"data"];
for (FBGraphObject<FBGraphUser> *friend in data)
{
[delegate.friendsListArray addObject:friend];
NSLog(#"%#:%#:%#:", [friend name],[friend birthday],[friend id]);
NSString *email=[friend objectForKey:#"email"];
NSLog(#"Email:%#",email);
}
}];
}
}];
}
- (void) performPublishAction:(void (^)(void)) action
{
NSArray *permissions = [[NSArray alloc] initWithObjects:#"user_birthday",#"user_location",#"friends_email",#"friends_hometown",#"friends_birthday",#"friends_location",#"publish_actions",#"user_photos",nil];
[[delegate facebook]authorize:permissions];
if ([FBSession.activeSession.permissions indexOfObject:permissions] == NSNotFound)
{
[FBSession.activeSession requestNewPublishPermissions:permissions
defaultAudience:FBSessionDefaultAudienceFriends
completionHandler:^(FBSession *session, NSError *error) {
if (!error) {
action();
}
}];
}
else
{
action();
}
[permissions release];
}
Any ideas please help me.

Answer 1

Shot in the dark but did you check your error value? Also what's the count of the # of records you get back?
Also could just try this instead, which seems to work (you might need to use objectForKey to get email out of the object):
FBRequest* friendsRequest = [FBRequest requestForMyFriends];
[friendsRequest startWithCompletionHandler: ^(FBRequestConnection *connection,
NSDictionary* result,
NSError *error) {
NSArray* friends = [result objectForKey:#"data"];
NSLog(#"Found: %i friends", friends.count);
for (NSDictionary<FBGraphUser>* friend in friends) {
NSLog(#"I have a friend named %# with id %#", friend.name, friend.id);
}
}];