Ios Facebook中邀请好友的Facebook设置

这可能是一个简单的问题，但有人能告诉我吗

在Facebook开发者网站的应用程序中，我们需要为邀请朋友做什么设置吗

我已经做了所有的代码来邀请朋友

当我用邀请朋友的示例代码替换Facebook应用程序ID时，我的代码也可以正常工作

但是，当我替换我的应用程序ID时，过程会正常进行，成功地向我显示邀请消息，但邀请不会发送

我正在使用以下代码：

[FBWebDialogs presentRequestsDialogModallyWithSession:nil
                                              message:FacebookInviteMessage
                                                title:@"Invite Friends"
                                           parameters:parameters
                                              handler:^(FBWebDialogResult result, NSURL *resultURL, NSError *error) {

                                                  NSString *strResultUrl = [resultURL absoluteString];

                                                  if (result == FBWebDialogResultDialogCompleted && ![strResultUrl isEqualToString:@"fbconnect://success"])
                                                  {
                                                      MIDLog(@"Web dialog complete: %@", resultURL);

                                                      if (![resultURL query])
                                                      {
                                                          return;
                                                      }

                                                      NSDictionary *params = [self parseURLParams:[resultURL query]];
                                                      NSMutableArray *recipientIDs = [[NSMutableArray alloc] init];
                                                      for (NSString *paramKey in params)
                                                      {
                                                          if ([paramKey hasPrefix:@"to["])
                                                          {
                                                              [recipientIDs addObject:[params objectForKey:paramKey]];
                                                          }
                                                      }
                                                      if ([params objectForKey:@"request"])
                                                      {
                                                          NSLog(@"Request ID: %@", [params objectForKey:@"request"]);
                                                      }
                                                      if ([recipientIDs count] > 0)
                                                      {
                                                          //[self showMessage:@"Sent request successfully."];
                                                          //NSLog(@"Recipient ID(s): %@", recipientIDs);
                                                          UIAlertView *alrt = [[UIAlertView alloc] initWithTitle:@"Success!" message:@"Invitation(s) sent successfuly!" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
                                                          [alrt show];
                                                          alrt = nil;
                                                      }





                                                      UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Success" message:FacebookInviteSuccess delegate:self cancelButtonTitle:@"Proceed" otherButtonTitles:nil];
                                                      alert.tag = 14114;
                                                      [alert show];
                                                      alert = nil;

                                                  }

                                                  else if (result == FBWebDialogResultDialogCompleted && [strResultUrl isEqualToString:@"fbconnect://success"])
                                                  {
                                                      MIDLog(@"Cancel Clicked");

                                                      UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Cancelled" message:nil delegate:self cancelButtonTitle:@"Proceed" otherButtonTitles:nil];
                                                      alert.tag = 14114;
                                                      [alert show];
                                                      alert = nil;

                                                  }

                                                  else {
                                                      MIDLog(@"Web dialog not complete, error: %@", error.description);

                                                      UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:InternetFailError delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
                                                      alert.tag = 15115;
                                                      [alert show];
                                                      alert = nil;

                                                  }
                                              }
                                          friendCache:self.friendCache] 

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我在Facebook开发者网站的应用程序设置中提供了canvas URL，它适合我