ios - Equivalent of loginViewShowingLoggedInUser -

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i trying migrate app facebook sdk 3.4 4.x. used following import

   #import <fbsdkcorekit/fbsdkcorekit.h>    #import <fbsdkloginkit/fbsdkloginkit.h>    #import <fbsdkloginkit/fbsdkloginbutton.h>

i used have 2 methods

- (void)loginviewshowingloggedinuser:(fbloginview *)loginview  - (void)loginviewfetcheduserinfo:(fbloginview *)loginview user:(id<fbgraphuser>)user

i can't find these methods in 4.x sdk.

i can see fbloginview changed fbsdkloginbuttondelegate. equivalent of above 2 methods. tried looking @ facebook ios samples not figure out.

there's method called loginbutton:didcompletewithresult:error: defined in fbsdkloginbuttondelegate : 

- (void) loginbutton:(fbsdkloginbutton *)loginbutton didcompletewithresult: (fbsdkloginmanagerloginresult *)result                error: (nserror *)error;

source : facebook sdk docs

note : above delegate login button, i.e. delegate called when user performs login using login button. delegate not called every time app launched loginviewshowingloggedinuser: used do.

you have use fbsdkloginmanager check if user aleady logged in :

fbsdkloginmanager works directly [fbsdkaccesstoken currentaccesstoken] , sets currentaccesstoken upon successful authorizations (or sets nil in case of logout).

you should check [fbsdkaccesstoken currentaccesstoken] before calling login* see if there cached token available (typically in viewdidload).

as retrieving user info, new sdk not automatically fetch user info. inside login success handler, have make graph request :

nsmutabledictionary *parameters = [nsmutabledictionary dictionary]; [parameters setvalue:@"id,name,email,gender" forkey:@"fields"]; [[[fbsdkgraphrequest alloc] initwithgraphpath:@"me" parameters:parameters]  startwithcompletionhandler:^(fbsdkgraphrequestconnection *connection, id result, nserror *error) {      if (!error) {          nsstring *userid = [[fbsdkaccesstoken currentaccesstoken] userid];          nsstring *username = [result valueforkey:@"name"];          nsstring *emailid=[result valueforkey:@"email"];          nsstring *gender=[result valueforkey:@"gender"];          nsstring *userimageurl = [nsstring stringwithformat:@"https://graph.facebook.com/%@/picture?type=large", [[fbsdkaccesstoken currentaccesstoken] userid]];      }      else{          nslog(@"%@",error.localizeddescription);      } }];

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