ios - 如何在 swift 中使用 GraphAPI 从 facebook 页面获取帖子

Question

我的应用程序有一个功能:从 Facebook 页面获取帖子并将其显示在应用程序中。我搜索了一下，发现我应该使用 Facebook GraphAPI: https://developers.facebook.com/docs/graph-api/using-graph-api/v2.3#reading我点击前面的链接，但出现错误:“请求此资源需要访问 token 。”我有页面的访问 token ，但我真的不知道如何在我的请求中分配它。有什么帮助吗？非常感谢!

Answer 1

<强>1。使用 Facebook SDK。

登录 FACEBOOK 按钮

@IBAction func click_Facebook(sender: AnyObject)
    {
        let loginView : FBSDKLoginManager = FBSDKLoginManager()

        loginView.loginBehavior = FBSDKLoginBehavior.Browser

        loginView.logInWithReadPermissions(["public_profile","user_friends","user_photos","user_location","user_education_history","user_birthday","user_posts"], handler: { (result : FBSDKLoginManagerLoginResult!, error : NSError!) -> Void in

                if ((error) != nil)
                {
                    // Process error

                    self.alertWithMessaage(error.localizedDescription)
                }
                else if result.isCancelled {
                    // Handle cancellations
                }
                else {

                    self.returnUserData()
                }

        })

    }

登录后调用以下函数。

    var Requset : FBSDKGraphRequest

    println("\(FBSDKAccessToken.currentAccessToken())")

    var acessToken = String(format:"%@", FBSDKAccessToken.currentAccessToken().tokenString) as String

    println("\(acessToken)")

    var parameters1 = ["access_token":FBSDKAccessToken.currentAccessToken().tokenString]


    Requset  = FBSDKGraphRequest(graphPath:"me/posts", parameters:parameters1, HTTPMethod:"GET")

    Requset.startWithCompletionHandler({ (connection, result, error) -> Void in

        MBProgressHUD.hideHUDForView(appDelegate.window, animated: true)

        if ((error) != nil)
        {
            println("Error: \(error)")
        }
        else
        {
            println("fetched user: \(result)")

            var dataDict: AnyObject = result!.objectForKey("data")!

        }
    })
}

<强>2。使用默认的 Facebook 应用程序。

//获取访问 token

    var _accountStore: ACAccountStore = ACAccountStore()

    var accountType : ACAccountType = _accountStore.accountTypeWithAccountTypeIdentifier(ACAccountTypeIdentifierFacebook)!

    var accounts : NSArray = _accountStore.accountsWithAccountType(accountType)!

    var facebookAccount1: ACAccount = accounts.lastObject! as ACAccount

    println("== \(facebookAccount1.credential.oauthToken)")

//将AccessToken传递给参数

    var acessToken = String(format:"%@", facebookAccount1.credential.oauthToken) as String

    var parameters = ["access_token":acessToken] as NSDictionary

//SLRequset

    var imageURL : NSURL = NSURL(string: "Your graph URL")!

    println("=== TOKEN : \(LoginService().currentAccount?.credential.oauthToken)")

    var Requset = SLRequest(forServiceType: SLServiceTypeFacebook, requestMethod: SLRequestMethod.GET, URL: imageURL, parameters: parameters)

    Requset.account = account

    Requset.performRequestWithHandler { (responseData : NSData!, urlResponse : NSHTTPURLResponse!, error : NSError!) -> Void in


        if (error != nil)
        {
            self.alertWithMessaage(error.localizedDescription)
        }
        else{

            var datastring = NSString(data: responseData, encoding: NSUTF8StringEncoding)

            println("== \(datastring)")

            var error:NSError? = nil

            var UserDict = NSJSONSerialization.JSONObjectWithData(responseData, options:nil, error: &error) as? NSDictionary


        }

    }