User location return null value - iphone

Question

In my application while i retrive the user location its return a Null value, and birthdate also returns also Null value, Code as follows,
- (void)populateUserDetails {
if (FBSession.activeSession.isOpen) {
[[FBRequest requestForMe] startWithCompletionHandler:
^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {
if (!error) {
self.userNameLabel.text = user.name;
self.userProfileImage.profileID = [user objectForKey:#"id"];
self.userbirthday.text=user.birthday;
self.userloc=[[user objectForKey:#"location"] objectForKey:#"name"];
}
}];
}
}
What is rong with code?Please help me to solve this issue?

Answer 1

For birthday and location you need to be granted with such permission. So you need to request the permission like so: Facebook SDK Documentation
- (BOOL)openSessionWithAllowLoginUI:(BOOL)allowLoginUI {
NSArray *permissions = [[NSArray alloc] initWithObjects:
#"user_location", // you need to have this permission
#"user_birthday", // to be approved
#"user_likes",
nil];
return [FBSession openActiveSessionWithReadPermissions:permissions
allowLoginUI:allowLoginUI
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
[self sessionStateChanged:session
state:state
error:error];
}];
}
And then use the FBRequest to retrieve the birthday and location. You can access username as it does not require special permission to do so.