Fetch user data from Facebook on iOS - ios

Question

I am new to iOS
I just want to get info such as gender, city, e-mail, and date of birth
but from code which I posted below ,I just got an idea like how to post data on Facebook,
now I want to fetch user details form Facebook
.h
#import <UIKit/UIKit.h>
#import <Social/Social.h>
#interface ViewController : UIViewController
- (IBAction)PostFB:(id)sender;
- (IBAction)PostTW:(id)sender;
#end
.m
//
// ViewController.m
// FaceBookFirstApp3
//
// Created by hits1 on 27/01/14.
// Copyright (c) 2014 hits1. All rights reserved.
//
#import "ViewController.h"
#import <Social/Social.h>
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)PostFB:(id)sender {
if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook])
{
SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
[controller setInitialText:#"First post from my iPhone app"];
[self presentViewController:controller animated:YES completion:Nil];
}
}
- (IBAction)PostTW:(id)sender {
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
SLComposeViewController *tweetSheet = [SLComposeViewController
composeViewControllerForServiceType:SLServiceTypeTwitter];
[tweetSheet setInitialText:#"Great fun to learn iOS programming at appcoda.com!"];
[tweetSheet addURL:[NSURL URLWithString:#"http://www.appcoda.com"]];
[tweetSheet addImage:[UIImage imageNamed:#"socialsharing-facebook-image.jpg"]];
[self presentViewController:tweetSheet animated:YES completion:nil];
}
}
#end
please, help me Out to Fetch at least one field(city (or) gender (or) phone-number) form Gmail or Facebook

Answer 1

You can use the below code to get user's gender, city, e-mail, and date of birth
In .h file add,
#import <Accounts/Accounts.h>
#property (nonatomic, retain) ACAccountStore *accountStore;
#property (nonatomic, retain) ACAccount *facebookAccount;
-(void)get;
-(void)attemptRenewCredentials;
- (void) getuserdetails;
in .m file
- (void) getuserdetails
{
self.accountStore = [[ACAccountStore alloc]init];
ACAccountType *FBaccountType= [self.accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
NSString *key = #"your app id";
NSDictionary *dictFB = [NSDictionary dictionaryWithObjectsAndKeys:key,ACFacebookAppIdKey,#[#"email"],ACFacebookPermissionsKey, nil];
[self.accountStore requestAccessToAccountsWithType:FBaccountType options:dictFB completion:
^(BOOL granted, NSError *e) {
if (granted) {
NSArray *accounts = [self.accountStore accountsWithAccountType:FBaccountType];
self.facebookAccount = [accounts lastObject];
NSLog(#"facebook account =%#",self.facebookAccount);
[self get];
} else {
dispatch_async(dispatch_get_main_queue(), ^{
// NSLog(#"%#",e.description);
if([e code]== ACErrorAccountNotFound)
{
UIAlertView* alt = [[UIAlertView alloc] initWithTitle:#"Account not found"
message:#"Please setup your Facebook account in Settings App" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok",nil];
[alt show];
}
else
{
UIAlertView* alt = [[UIAlertView alloc] initWithTitle:#"Access Denied"
message:#"" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok",nil];
[alt show];
}
});
NSLog(#"error getting permission %#",e);
}
}];
}
-(void)get
{
NSURL *requestURL = [NSURL URLWithString:#"https://graph.facebook.com/me"];
SLRequest *request = [SLRequest requestForServiceType:SLServiceTypeFacebook
requestMethod:SLRequestMethodGET
URL:requestURL
parameters:nil];
request.account = self.facebookAccount;
[request performRequestWithHandler:^(NSData *data,
NSHTTPURLResponse *response,
NSError *error) {
if(!error)
{
list =[NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSLog(#"Dictionary contains: %#", list );
NSLog(#"EmailID %#",[list objectForKey:#"email"]);
NSLog(#"Birthday %#",[list objectForKey:#"birthday"]);
NSLog(#"Gender %#",[list objectForKey:#"gender"]);
NSLog(#"City %#",[[list objectForKey:#"location"] objectForKey:#"name"]);
if([list objectForKey:#"error"]!=nil)
{
[self attemptRenewCredentials];
}
dispatch_async(dispatch_get_main_queue(),^{
});
}
else{
//handle error gracefully
NSLog(#"error from get%#",error);
//attempt to revalidate credentials
}
}];
}
-(void)attemptRenewCredentials{
[self.accountStore renewCredentialsForAccount:(ACAccount *)self.facebookAccount completion:^(ACAccountCredentialRenewResult renewResult, NSError *error){
if(!error)
{
switch (renewResult) {
case ACAccountCredentialRenewResultRenewed:
NSLog(#"Good to go");
[self get];
break;
case ACAccountCredentialRenewResultRejected:
{
NSLog(#"User declined permission");
UIAlertView* alt = [[UIAlertView alloc] initWithTitle:#"Access Denied"
message:#"You declined permission" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok",nil];
[alt show];
break;
}
case ACAccountCredentialRenewResultFailed:
{
NSLog(#"non-user-initiated cancel, you may attempt to retry");
UIAlertView* alt = [[UIAlertView alloc] initWithTitle:#"Access Denied"
message:#"non-user-initiated cancel, you may attempt to retry" delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok",nil];
[alt show];
break;
}
default:
break;
}
}
else{
//handle error gracefully
NSLog(#"error from renew credentials%#",error);
}
}];
}
-(void)accountChanged:(NSNotification *)notif//no user info associated with this notif
{
[self attemptRenewCredentials];
}

Answer 2

- (void)sessionStateChanged:(NSNotification*)notification
{
if (FBSession.activeSession.isOpen)
{
[[FBRequest requestForMe] startWithCompletionHandler:
^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error)
{
if (!error)
{
//for geting the user detail.
NSString *fbSelectDetails = [#"" stringByAppendingFormat:#"https://graph.facebook.com/me? fields=id,name,email,first_name,last_name,gender,picture,link,birthday,quotes,education&access_token=%#",FBSession.activeSession.accessToken];
NSMutableDictionary *userDetails = [NSMutableDictionary dictionaryWithDictionary:[DataLayer getJSONContentFromURL:fbSelectDetails]];
NSString *uid = [userDetails valueForKey:#"id"];
NSString *userName= user.name;
NSString *userEmail= [userDetails valueForKey:#"email"];
NSString *userFirstName= [userDetails valueForKey:#"first_name"];
NSString *userLastName= [userDetails valueForKey:#"last_name"];
NSString *userGender= [userDetails valueForKey:#"gender"];
NSString *userLink= [userDetails valueForKey:#"link"];
NSString *userDob= [userDetails valueForKey:#"birthday"];
NSMutableDictionary *imgUrl = [NSMutableDictionary dictionaryWithDictionary:[userDetails valueForKey:#"picture"]];
NSString *userImgUrl= [[imgUrl valueForKey:#"data"] valueForKey:#"url"];
}];
}
}