How to get User Data from Facebook? - ios

Question

I am new in iOS Development, I am trying to do get Details of User from Facebook. Here is my code which i am used but when it called my app is hang. In below code it can not worked when i can not Login with device in Facebook in Setting>Facebook. Please help me for this.
-(Void)LoginWithFB {
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *facebookAccountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
SLComposeViewController *vc = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
id options = #{
ACFacebookAppIdKey: #"1501842240102594",
ACFacebookPermissionsKey: #[ #"email"],
};
[accountStore requestAccessToAccountsWithType:facebookAccountType
options:options
completion:^(BOOL granted, NSError *error) {
if (granted)
{
// Return back logined facebook Account
ACAccount *fbAccount = [[accountStore accountsWithAccountType:facebookAccountType] lastObject];
// Do What you want...
// Request friend list
//http://graph.facebook.com/000000000/picture
SLRequest *friendsListRequest = [SLRequest requestForServiceType:SLServiceTypeFacebook
requestMethod:SLRequestMethodGET
URL: [[NSURL alloc] initWithString:#"https://graph.facebook.com/me"]parameters:nil];
friendsListRequest.account = fbAccount;
[friendsListRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
// Parse response JSON
NSError *jsonError = nil;
NSDictionary *dictionaryForFacebookData = [NSJSONSerialization JSONObjectWithData:responseData
options:NSJSONReadingAllowFragments
error:&jsonError];
// NSString *proficePicture = [NSString stringWithFormat:#"http://graph.facebook.com/415790901901979/picture"];
NSMutableDictionary *dictionaryParameter = [[NSMutableDictionary alloc]init];
[dictionaryParameter setObject:#"facebook" forKey:#"registrationsource"];
[dictionaryParameter setObject:[dictionaryForFacebookData objectForKey:#"first_name"] forKey:#"firstname"];
[dictionaryParameter setObject:[dictionaryForFacebookData objectForKey:#"last_name"] forKey:#"lastname"];
[dictionaryParameter setObject:[dictionaryForFacebookData objectForKey:#"email"] forKey:#"email"];
[dictionaryParameter setObject:#"yes" forKey:#"status"];
WebServiceClass *objectToCallApi = [[WebServiceClass alloc]init];
NSDictionary *dictionaryReturnValue = [objectToCallApi callAPIWebservice:dictionaryParameter stringURL:[[Singelton sharedInstance] passMethodName:#"login"]];
if (![[dictionaryReturnValue objectForKey:#"success"] isEqualToString:#"1"])
{
[UIAlertView showWithTitle:ALERT_TITLE message:[dictionaryReturnValue objectForKey:#"message"] handler:^(UIAlertView *alertview, NSInteger buttonindex){
}];
}
if ([[dictionaryReturnValue objectForKey:#"success"] isEqualToString:#"1"])
{
APP_DELEGATE.intTabbarNumber = 0;
NSMutableDictionary *data =[[NSMutableDictionary alloc]init];
[data setObject:[NSString stringWithFormat:#"%# %#",[dictionaryReturnValue objectForKey:#"firstname"], [dictionaryReturnValue objectForKey:#"lastname"]] forKey:#"fullname"];
[data setObject:dictionaryReturnValue[#"username"] forKey:#"username"];
[data setObject:dictionaryReturnValue[#"email"] forKey:#"email"];
[data setObject:dictionaryReturnValue[#"userid"] forKey:#"userid"];
NSMutableArray *arrayOfExistingUser;
if([[NSUserDefaults standardUserDefaults] valueForKey:#"Users"] != nil)
{
arrayOfExistingUser = [[[NSUserDefaults standardUserDefaults] valueForKey:#"Users"] mutableCopy];
for (int i=0; i<arrayOfExistingUser.count; i++)
{
if ([[[arrayOfExistingUser objectAtIndex:i]objectForKey:#"userid"] isEqualToString:[data objectForKey:#"userid"]])
{
[arrayOfExistingUser removeObjectAtIndex:i];
}
}
}
else
{
arrayOfExistingUser = [[NSMutableArray alloc]init];
}
[arrayOfExistingUser addObject:data];
[[NSUserDefaults standardUserDefaults] setObject:arrayOfExistingUser forKey:#"Users"];
[[NSUserDefaults standardUserDefaults] synchronize];
[[NSUserDefaults standardUserDefaults]setObject:dictionaryReturnValue forKey:#"dictionaryForLoginData"];
if ([[dictionaryReturnValue objectForKey:#"role"] isEqualToString:#"teacher"])
{
[APP_DELEGATE createTabbarInstanceForTeacher];
}
else if ([[dictionaryReturnValue objectForKey:#"role"] isEqualToString:#"student"])
{
[APP_DELEGATE createTabbarInstanceForstudent];
}
else if ([[dictionaryReturnValue objectForKey:#"role"] isEqualToString:#"parent"])
{
[APP_DELEGATE createTabbarInstanceForParent];
}
}
}];
}
else
{
SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
[controller.view resignFirstResponder];
controller.view.hidden = YES;
[self presentViewController:controller animated:NO completion:nil];
}
}];
}

Answer 1

in .h file
#import <Accounts/Accounts.h>
#import <Social/Social.h>
#property (nonatomic, strong) ACAccountStore *accountStore;
#property (nonatomic, strong) ACAccount *facebookAccount;
in .m file
- (void) getuserdetails
{
self.accountStore = [[ACAccountStore alloc]init];
ACAccountType *FBaccountType= nil;
//[self.accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
if (! FBaccountType) {
FBaccountType = [_accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
}
NSString *key =kFBAppId;
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
{
NSLog(#"fb error %#",e.description);
dispatch_async(dispatch_get_main_queue(), ^
{
[self performSelectorOnMainThread:#selector(hideLoader) withObject:nil waitUntilDone:YES];
NSLog(#"%#",e.description);
if([e code]== ACErrorAccountNotFound)
{
UIAlertView* alt = [[UIAlertView alloc] initWithTitle:#"Account not found"
message:msgSetUpFBAccount delegate:self cancelButtonTitle:nil otherButtonTitles:#"Ok",nil];
[alt show];
}
else
{
UIAlertView* alt = [[UIAlertView alloc] initWithTitle:msgFBAccessDenied
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 );
if([list objectForKey:#"error"]!=nil)
{
[self attemptRenewCredentials];
}
dispatch_async(dispatch_get_main_queue(),^{
});
}
else
{
[self performSelectorOnMainThread:#selector(hideLoader) withObject:nil waitUntilDone:YES];
NSLog(#"error from get%#",error);
}
}];
}
-(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);
}
}];
}

Answer 2

In your method signature - (Void)LoginWithFB; Void is not a type but void is. So that might be the problem.