Facebook -（void）请求：（FBRequest*）请求didLoad:（id）未调用结果

为什么这个方法从未调用过？谁能帮我检查代码，我是新手

这是我的*.h文件

@interface LoginViewController : UIViewController <FBSessionDelegate,FBRequestDelegate,FBDialogDelegate> {

    Facebook *facebook;
    IBOutlet UITextField *_txt;
    NSString *facebookUserID;

我知道下面的方法将获得用户ID，但它从未调用

- (void)request:(FBRequest *)request didLoad:(id)result 
{
    NSLog(@"Inside didLoad");     
    if ([result isKindOfClass:[NSArray class]])
    {
        result = [result objectAtIndex:0];
    }
    // When we ask for user infor this will happen.
    if ([result isKindOfClass:[NSDictionary class]])
    {
        //NSDictionary *hash = result;         
        NSLog(@"Name: %@", [result objectForKey:@"name"]);

        self.facebookUserID = [result objectForKey:@"id"];
        NSLog(@"ID: %@", [result objectForKey:@"id"]);
    }
}

---

您需要实现openURL或handleOpenURL（后者在ios 4.2之前）。它需要在应用程序代理中实现，而不是在视图控制器中实现

看。openURL将导致调用fbDidLogin

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
    NSLog(@"============HANDLE OPEN URL");
    ViewController *v =(ViewController *) vc;
    return [[v facebook] handleOpenURL:url]; 
}

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
    NSLog(@"============HANDLE OPEN URL");
    ViewController *v =(ViewController *) vc;
    return [[v facebook] handleOpenURL:url]; 
}