在Swift 4中閱讀來自Facebook Graph Request的回復

Question

我正在嘗試使用Graph API將Facebook朋友列表添加到我的Swift iOS應用中。

我正在努力研究如何實際訪問從Facebook發送回的數據。

我得到的響應如下所示：

success(FacebookCore.GraphResponse(rawResponse: Optional({
"first_name" = Jamie;
id = 1626917907360895;
"last_name" = McAllister;
name = "Jamie McAllister";
picture =     {
    data =         {
        height = 50;
        "is_silhouette" = 0;
        url = "https://scontent.xx.fbcdn.net/v/t1.0-1/p50x50/12994335_1101318013254223_4481895970110564364_n.jpg?oh=d10209f113213981e4417e7f6f3f82d8&oe=5A91F135";
        width = 50;
    };
};
})))

由於我是唯一的注冊用戶，因此我的圖表Request暫時是/me 。 但是響應中的所有字段都是我要從朋友列表中請求的

圖形請求如下所示：

var graph = GraphRequest.init(graphPath: "me")
    graph.parameters = ["fields": "id, first_name, last_name, middle_name, name, email, picture"]

    graph.start({ (response, data) in
        print("======GRAPH=====")
        print(data)

        })

因此，我希望能夠采用GraphResponse ，使其成為數組並將其分配給變量。 我完全被這個困擾。

Answer 1

希望這對Swift 4.2有幫助

    func getFbId(){
    if(AccessToken.current != nil){
        let req = GraphRequest(graphPath: "me", parameters: ["fields": "email,first_name,last_name,gender,picture"], accessToken: AccessToken.current, httpMethod: GraphRequestHTTPMethod(rawValue: "GET")!)
        req.start({ (connection, result) in
            switch result {
            case .failed(let error):
                print(error)

            case .success(let graphResponse):
                if let responseDictionary = graphResponse.dictionaryValue {
                    print(responseDictionary)
                    let firstNameFB = responseDictionary["first_name"] as? String
                    let lastNameFB = responseDictionary["last_name"] as? String
                    let socialIdFB = responseDictionary["id"] as? String
                    let genderFB = responseDictionary["gender"] as? String
                    let pictureUrlFB = responseDictionary["picture"] as? [String:Any]
                    let photoData = pictureUrlFB!["data"] as? [String:Any]
                    let photoUrl = photoData!["url"] as? String
                    print(firstNameFB, lastNameFB, socialIdFB, genderFB, photoUrl)
                }
            }
        })
    }
}

Answer 2

要讀取來自Facebook Graph Request的響應，請使用以下代碼行

let info = data as! [String : AnyObject]
 if info["name"] as? String != nil {
   self.usernameLbl.text = info["name"] as! String
 }

希望這個能對您有所幫助

Answer 3

Graph請求開始完成塊已更改為需要3個參數，而不是2個。

因此，您將得到以下內容（請注意，開始塊中已通過了3個項目 [連接，結果和錯誤]）：

let params = ["fields" : "email, first_name, id, picture"]
    let graphRequest = GraphRequest(graphPath: "me", parameters: params)
    graphRequest.start{
        (connection, result, error in

        if error == nil {
           if let responseDictionary = result as? NSDictionary {

            UserProfile.userName = responseDictionary["first_name"] as? String ?? "User"


           UserProfile.userID = responseDictionary["id"] as! String

           var pictureUrl = ""
           if let picture = responseDictionary["picture"] as? NSDictionary, let data = picture["data"] as? NSDictionary, let url = data["url"] as? String {
                                        pictureUrl = url

                                    }
                                }
        }else{
            print("error in graph request:", error)

        }