iOS SDK 好友 Facebook API v2.0

Question

I'm currently using the Facebook iOS SDK v3.16, which uses the Graph API 2.0. My call looks like this:

 NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                        @"context.fields(mutual_friends)", @"fields",
                        nil
                        ];
[FBRequestConnection startWithGraphPath:[NSString stringWithFormat:@"/%@", object[@"profile"][@"facebookId"]]
                             parameters:params
                             HTTPMethod:@"GET"
                      completionHandler:^(
                                          FBRequestConnection *connection,
                                          id result,
                                          NSError *error
                                          ) {
                          cell.text3.text = [NSString stringWithFormat:@"Mutual Users: %lu", [result[@"context"][@"mutual_friends"][@"data"] count]];
                      }];

object[@"profile"][@"facebookId"] is a scoped ID for the app.

The expected behavior for this call would be to return the number of mutual friends in between the current user and the requested user. The thing is, though, that the mutual friend count is almost always 0 (for some reason it is 2 in a couple cases, but it should actually be higher).

The weird part is the error object never has anything in it, and the result object is just nil. I'm not quite sure how to proceed since there are no results being returned and yet there should be, but it is not giving me an error.

Answer 1

Find a working code in swift 3.0
Note: Submit for review to facebook for using this service

FBSDKGraphRequest(graphPath: fbTokenID, parameters: ["fields": "context.fields(mutual_friends.limit(8))"]).start(completionHandler: { (connection, result, error) -> Void in
            if (error == nil){

                print("//////Mutual friends")
                print(result!)

            } else {
                print(error!.localizedDescription)
            }
        })

// you can also limit result of mutual friends by adding "limit"

Answer 2

In swift 3.0

FBSDKGraphRequest(graphPath:"/me/taggable_friends", parameters:["fields":"user_id,first_name,last_name,name,picture.type(large)"],httpMethod: "GET")
                //["fields": "id, name, first_name, last_name, picture.type(large), email"])
                .start(completionHandler: { (connection,result, error) -> Void in
                if (error == nil)
                {
                    print("Friends are: \(result)")
                    let jsonResult = result as! Dictionary<String,AnyObject>
                    self.dict = jsonResult["data"] as! [AnyObject]

                    for item in self.dict
                    {
                       // let id = item["id"] as! String
                        let name = item["name"] as! String
                        self.FBNameArray.append(name)
                        print("FBname: \(self.FBNameArray)")
                        let picture = item["picture"] as! NSDictionary
                        let parsePic = picture["data"] as! NSDictionary
                        let url = parsePic["url"] as! String
                        self.FBImageArray.append(url)
                        print("FBimage: \(self.FBImageArray)")
                        self.TblView.reloadData()
                    }

                }

            })