FBSDKLoginManager logInWithPublishPermissions always returns isCancelled=YES

Question

I am having trouble figuring out how to log a user into my app. [FBSDKAccessToken currentAccessToken] is nil, so I am calling:

[[[FBSDKLoginMana         


        

Answer 1

This method works in iOS 9

// Facebook Login Completion delegate
- (void)loginButton:(FBSDKLoginButton *)loginButton didCompleteWithResult:(FBSDKLoginManagerLoginResult *)result error:(NSError *)error
{
    if (result){
        NSLog(@"%@",result);
        NSLog(@"%@",result.grantedPermissions);
       [self getFacebookData:result];
     }
}  

- (void)getFacebookData:(FBSDKLoginManagerLoginResult *)result{

   if (![result.grantedPermissions containsObject:@"email"])
   {
      FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
      login.loginBehavior = FBSDKLoginBehaviorWeb;
      [login logInWithReadPermissions:@[@"email"] fromViewController:self handler:^(FBSDKLoginManagerLoginResult *result, NSError *error)
       {
         if (error)
         {
             // Process error
         }
         else if (result.isCancelled)
         {
             // Handle cancellations
         }
         else
         {
             if ([result.grantedPermissions containsObject:@"email"])
             {
                 NSLog(@"result is:%@",result);
                 if ([FBSDKAccessToken currentAccessToken]) {
                     [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"first_name, last_name, email, id"}]
                      startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
                          if (!error) {
                              NSLog(@"fetched user:%@", result);
                              [self registerWithFacebook:result];
                          }else{
                              NSLog(@"%@",error);
                          }
                      }];
                 }


             }
         }
     }];


 }else{
    if ([FBSDKAccessToken currentAccessToken]) {
        [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"first_name, last_name, email, id"}]
         startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
             if (!error) {
                 NSLog(@"fetched user:%@", result);
                 [self registerWithFacebook:result];
             }else{
                 NSLog(@"%@",error);
             }
         }];
    }
}

}

NOTE : Use FBSDKLoginBehaviorWeb instead of FBSDKLoginBehaviorBrowser. This will surely work