Can't get Facebook friends with FBFriendPicker in iOS - ios

Question

I want to get Facebook friends in my project. I have tried the FBFriendPicker Method, but I can't get the friends. It shows empty list to me.
Here is my code.
- (IBAction)pickFriendsButtonClick:(id)sender {
if (!FBSession.activeSession.isOpen) {
[FBSession openActiveSessionWithReadPermissions:#[#"public_profile", #"user_friends"]
allowLoginUI:YES
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
if (error) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
} else if (session.isOpen) {
[self pickFriendsButtonClick:sender];
}
}];
return;
}
if (self.friendPickerController == nil) {
// Create friend picker, and get data loaded into it.
self.friendPickerController = [[FBFriendPickerViewController alloc] init];
self.friendPickerController.title = #"Pick Friends";
self.friendPickerController.delegate = self;
}
[self.friendPickerController loadData];
[self.friendPickerController clearSelection];
[self presentModalViewController:self.friendPickerController animated:YES];
}

Answer 1

Try This...
-(IBAction)btnFacebookClick:(id)sender
{
NSArray *permissions = [[NSArray alloc] initWithObjects: #"user_about_me,user_birthday,user_hometown,user_location,email",#"read_mailbox",#"read_stream",nil];
[FBSession openActiveSessionWithReadPermissions:permissions allowLoginUI:YES completionHandler:^(FBSession *session,FBSessionState status,NSError *error)
{
if(error)
{
NSLog(#"session error %#",error);
}
else if(FB_ISSESSIONOPENWITHSTATE(status))
{
[self getFriendList];
}
}];
}
-(void)getFriendList
{
FBRequest *friendsRequest=[FBRequest requestForMyFriends];
[friendsRequest startWithCompletionHandler:^(FBRequestConnection *connection,NSDictionary* result,NSError *error)
{
friendsArr = [result objectForKey:#"data"];
NSLog(#"friends description :%#",[friendsArr description]);
}];
}

Answer 2

Try this code for get facebook friends....
FBRequest* friendsRequest = [FBRequest requestForMyFriends];
friendsRequest.session = FBSession.activeSession;
[friendsRequest startWithCompletionHandler: ^(FBRequestConnection *connection,
NSDictionary* result,
NSError *error) {
NSArray* friends = [result objectForKey:#"data"];
NSLog(#"Found: %lu friends", (unsigned long)friends.count);
for (NSDictionary<FBGraphUser>* friend in friends)
{
NSLog(#"I have a friend named %# ", friend.name);
}
}];

Answer 3

Please try below code :
[FBSession openActiveSessionWithReadPermissions:#[#"email"]
allowLoginUI:YES
completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {
if (error) {
// Handle errors
[self handleAuthError:error];
}
else
{
// Check for publish permissions
FBRequest *req = [FBRequest requestForMyFriends];
[req startWithCompletionHandler:^(FBRequestConnection *connection,NSDictionary *result,NSError *error){
NSLog(#"Result:- %#",[result objectForKey:#"data"]);
}];
}
}];

Answer 4

With the new API version v2.0, you cannot get the complete list of friends just with user_friends. Your picker must be using /me/friends which will give you the list of friends using that app. So in your case none of your friends be using this app and that's why you are getting a blank response.
To get the complete list of friends you should use /me/taggable_friends API. But note that this permission needs to be reviewed first by facebook before you go live. See this answer for more info for using this permission.