Reading information from Facebook - ios

Question

I am a beginner in iOS. I am trying to create an app and referred a lot of posts in the stackoverflow and some other sites and i used the following code to access the Facebook account.
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
if (appDelegate.session.isOpen) {
[appDelegate.session closeAndClearTokenInformation];
} else {
if (appDelegate.session.state != FBSessionStateCreated) {
appDelegate.session = [[FBSession alloc] init];
}
[appDelegate.session openWithCompletionHandler:^(FBSession *session,
FBSessionState status,
NSError *error) {
}];
}
After that in a function i used the following code to access the Facebook details of the user.
if (FBSession.activeSession.isOpen) {
[[FBRequest requestForMe] startWithCompletionHandler:
^(FBRequestConnection *connection,
NSDictionary<FBGraphUser> *user,
NSError *error) {
if (!error) {
_FirstName.text = user.first_name;
regisrationdetails.fbid = user.id;
_LastName.text=user.last_name;
_EmailAddress.text=user.email;
NSArray *locationarray=[[NSArray alloc]initWithObjects:user.location,nil];
_City.text=[locationarray objectAtIndex:1];
NSLog(#"%#",user.first_name);
}
}];
No error is being shown but i can't get the information from Facebook the the text fields.If anyone good at this knows how to access the information then please help me out.

Answer 1

- (IBAction)getMeButtonTapped:(id)sender {
if(!_accountStore)
_accountStore = [[ACAccountStore alloc] init];
ACAccountType *facebookTypeAccount = [_accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
[_accountStore requestAccessToAccountsWithType:facebookTypeAccount
options:#{ACFacebookAppIdKey: #"571438296262222", ACFacebookPermissionsKey: #[#"email"]}
completion:^(BOOL granted, NSError *error) {
if(granted){
NSArray *accounts = [_accountStore accountsWithAccountType:facebookTypeAccount];
_facebookAccount = [accounts lastObject];
NSLog(#"Success");
[self me];
}else{
// ouch
NSLog(#"Fail");
NSLog(#"Error: %#", [error localizedDescription]);
}
}];
}
- (void)me
{
NSURL *meurl = [NSURL URLWithString:#"https://graph.facebook.com/me"];
SLRequest *merequest = [SLRequest requestForServiceType:SLServiceTypeFacebook
requestMethod:SLRequestMethodGET
URL:meurl
parameters:nil];
merequest.account = _facebookAccount;
[merequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
NSString *meDataString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(#"%#", meDataString);
}];}
Use this hope this helps you, also add social framework as well as Accounts Framework

Answer 2

try this..
- (void)fetchFacebookUserInfo {
if ( FBSession.activeSession.isOpen) {
[FBRequestConnection startForMeWithCompletionHandler:^(FBRequestConnection *connection,
id<FBGraphUser> user,
NSError *error) {
if (!error) {
NSString *name = user.name;
NSString *userName = user.username;
NSString *firstName = user.first_name;
NSString *lastName = user.last_name;
NSString *email1 = [user objectForKey:#"email"];
NSString *birthday1 = user.birthday;
NSString *locale = [user objectForKey:#"locale"];
NSString *location = [user.location objectForKey:#"name"];
}
}];
}