IOS facebook整合像按钮

Question

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                   @"hello", @"name",
                                   @"This post has been liked.", @"caption",
                                   Post, @"description",
                                   @"http://www.abc.com/", @"link",
                                   @"http://www.freeimagehosting.net/newuploads/49ncw.png", @"picture",
                                   actionLinksStr, @"actions",
                                   nil];


    [facebook requestWithGraphPath:@"me/feed" andParams:params andHttpMethod:@"POST" andDelegate:self];

它的帖子在我的墙上成功发布，但是我希望它在被发布的同时被喜欢。这将增加类似数量。 请帮忙