Facebook graph api 使用Swift在iOS SDK中处理Facebook图形API结果

我只想从Facebook的Graph API请求数据，例如获取当前用户的基本信息

目标-C文档是：

---

目前还没有Swift文档，我对类型为“id”的“result”参数感到困惑。

它看起来像

result

包含一个字典，但它可能是

nil

。在Swift中，其类型将映射到

AnyObject？

因此，在

Swift

中，您可以执行以下操作：

// Cast result to optional dictionary type
let resultdict = result as? NSDictionary

if resultdict != nil {
    // Extract a value from the dictionary
    let idval = resultdict!["id"] as? String
    if idval != nil {
        println("the id is \(idval!)")
    }
}

这可以简化一点：

let resultdict = result as? NSDictionary
if let idvalue = resultdict?["id"] as? String {
    println("the id value is \(idvalue)")
}

---

请记住，它不是一本字典，而是字典和数组的组合

FBRequestConnection.startWithGraphPath("me?fields=feed", completionHandler: { (connection, result, error) -> Void in
                if( error == nil){

                    let fbGraphObject = result as FBGraphObject

                    let feed = fbGraphObject.objectForKey("feed") as NSMutableDictionary

                    let data = feed.objectForKey("data") as NSMutableArray

                    let postDescription = data[0].objectForKey("description") as String

                    //println( post )

                    self.fbu.initialUserFeed = feed
                    self.performSegueWithIdentifier("SelectStreams", sender: self)

                }else
                {
                    //TODO Allert to user that something went wrong
                    println(error)
                }

            })

---

一开始我对此感到困惑

这是一种更简单的方法：

    let params: [NSObject : AnyObject] = ["redirect": false, "height": 800, "width": 800, "type": "large"]
    let pictureRequest = FBSDKGraphRequest(graphPath: "me/picture", parameters: params, HTTPMethod: "GET")
    pictureRequest.startWithCompletionHandler({
        (connection, result, error: NSError!) -> Void in
        if error == nil {
            print("\(result)")


           let dictionary = result as? NSDictionary
           let data = dictionary?.objectForKey("data")
           let urlPic = (data?.objectForKey("url"))! as! String
           print(urlPic)



        } else {
            print("\(error)")
        }
    })

}

---

成功了，谢谢！我认为这是目前唯一一个第一个iOS语言为Swift.fbGraphObject的用户在线FB SDK文档

    let params: [NSObject : AnyObject] = ["redirect": false, "height": 800, "width": 800, "type": "large"]
    let pictureRequest = FBSDKGraphRequest(graphPath: "me/picture", parameters: params, HTTPMethod: "GET")
    pictureRequest.startWithCompletionHandler({
        (connection, result, error: NSError!) -> Void in
        if error == nil {
            print("\(result)")


           let dictionary = result as? NSDictionary
           let data = dictionary?.objectForKey("data")
           let urlPic = (data?.objectForKey("url"))! as! String
           print(urlPic)



        } else {
            print("\(error)")
        }
    })

}