以下解决方案对我有用.但是，如果您要存储永久访问令牌，则需要确保用户没有删除应用程序权限，否则会出错.您可以使用 requestWithGraphPath -> "me/permissions" 进行检查.

Following solution worked for me. But if you're storing a permanent access token, you need to be sure user not removed application permissions otherwise it will give an error. And you can check that with requestWithGraphPath -> "me/permissions".

应用程序初始化函数(例如:didFinishLaunchingWithOptions/或您初始化 Facebook 对象的位置同时需要为 fbsessiondelegate)

Application Init Function (e.g.:didFinishLaunchingWithOptions/or where you init your Facebook object which needs to be fbsessiondelegate in the mean time)

...    
NSArray* permissions = [[NSArray alloc] initWithObjects:@"user_likes",@"offline_access", nil];

        FBSession*oursession = [[FBSession alloc] initWithPermissions:permissions];
...

FBDidLogin 函数:

FBDidLogin function:

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:[facebook accessToken] forKey:@"FBAccessTokenKey"];
    [defaults setObject:[facebook expirationDate] forKey:@"FBExpirationDateKey"];
    [defaults synchronize];

图api请求函数示例:

Example graph api request function:

NSUserDefaults *userDefaults =[NSUserDefaults standardUserDefaults];
        NSString *key = [userDefaults stringForKey:@"FBAccessTokenKey"];

    FBRequest* ourcon = [[FBRequest alloc] initWithSession:oursession graphPath:@"me/likes" parameters:params HTTPMethod:@"GET"];

            [ourcon startWithCompletionHandler: ^(FBRequestConnection *connection, id<FBGraphUser> result, NSError *error){
                if(error)
                {
                    //NSLog(error.code);
                    return;
                }

                NSArray* collection = (NSArray*)[result data];
                NSLog(@"You have %d like", [collection count]);

                NSDictionary* name = [collection objectAtIndex:14];
                NSLog(@"Like Name: %@", [name objectForKey:@"name"]);
            }];