iOS Facebook get friends list - ios

Question

- (void)viewDidLoad
{
[super viewDidLoad];
m_allFriends = [[NSMutableArray alloc] init];
if ([[FBSession activeSession] isOpen])
{
if ([[[FBSession activeSession] permissions]indexOfObject:#"user_friends"] == NSNotFound)
{
[[FBSession activeSession] requestNewPublishPermissions:[NSArray arrayWithObject:#"user_friends"] defaultAudience:FBSessionDefaultAudienceFriends
completionHandler:^(FBSession *session,NSError *error){
[self getFBFriendListFunc];
NSLog(#"1");
}];
}
else
{
[self getFBFriendListFunc];
NSLog(#"2");
}
}
else
{
[FBSession openActiveSessionWithPublishPermissions:[NSArray arrayWithObject:#"user_friends"]
defaultAudience:FBSessionDefaultAudienceOnlyMe
allowLoginUI:YES
completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
if (!error && status == FBSessionStateOpen) {
[self getFBFriendListFunc];
NSLog(#"3");
}else{
NSLog(#"error");
}
}];
}
}
-(void)getFBFriendListFunc
{
[FBRequestConnection startWithGraphPath:#"me/friends"
parameters:nil
HTTPMethod:#"GET"
completionHandler:^(
FBRequestConnection *connection,
id result,
NSError *error
) {
NSLog(#"me/friends result=%#",result);
NSLog(#"me/friends error = %#", error.description);
NSArray *friendList = [result objectForKey:#"data"];
[m_allFriends addObjectsFromArray: friendList];
}];
}
I try to connect Facebook with their API, actually this code connect Facebook, Facebook ask me this application want to use your information than i confirmed. Last step, Facebook return again my application than this getFBFriendListFunc should be run but none of if/else work. Nothing display...
I get this codes on Facebook developer which code part wrong ?
Any idea ?
Thank you...

Answer 1

For inviting users you can use the following code after adding the facebook-sdk
[FBWebDialogs
presentRequestsDialogModallyWithSession:sharedFacebookHelper.session
message:#"Your invite message"
title:nil
parameters:nil
handler:^(FBWebDialogResult result, NSURL *resultURL, NSError *error) {
if (error) {
// An error occurred, we need to handle the error
// See: https://developers.facebook.com/docs/ios/errors
NSLog(#"Error publishing story: %#", error.description);
} else {
if (result == FBWebDialogResultDialogNotCompleted) {
// User canceled.
NSLog(#"User cancelled.");
} else {
// Handle the publish feed callback
}
}
}];

Answer 2

I add this function on AppDelegate.m if this function does not exit login session never be work i hope this code help any one :)
-(BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
BOOL wasHandled = [FBAppCall handleOpenURL:url sourceApplication:sourceApplication];
return wasHandled;
}