通过Facebook Graph API快速获取个人资料图片返回"不支持的URL"

Question

我正在为iOS开发一个用户应该使用facebook登录的应用程序.所以我正在尝试获取用户个人资料图片,但以下代码正在返回"unsupported URL"

FBRequestConnection.startWithGraphPath("\(userID)/picture?type=large&access_token=207613839327374|BgKi3AePtvg1oDO8GTbWqqLE_SM", completionHandler: { (connection, result, error) -> Void in
   if (error? != nil){
      NSLog("error = \(error)")
   }else{
      println(result)
   }
})

---

UPDATE

以下更改:

FBRequestConnection.startWithGraphPath("\(userID)/picture?type=large", completionHandler: { (connection, result, error) -> Void in
  if (error? != nil){
    NSLog("error = \(error)")
  }else{
    println(result)
  }
})

回来了:

error = Error Domain=com.facebook.sdk Code=6 "Response is a non-text MIME type; endpoints that return images and other binary data should be fetched using NSURLRequest and NSURLConnection" UserInfo=0x786d4790

Answer 1

你可以这样做:

    // accessToken is your Facebook id
    func returnUserProfileImage(accessToken: NSString)
    {
        var userID = accessToken as NSString
        var facebookProfileUrl = NSURL(string: "http://graph.facebook.com/\(userID)/picture?type=large")

        if let data = NSData(contentsOfURL: facebookProfileUrl!) {
            imageProfile.image = UIImage(data: data)
        }

    }

这是我获取Facebook ID的方式:

func returnUserData()
{
    let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: nil)
    graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in

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

            if let id: NSString = result.valueForKey("id") as? NSString {
                println("ID is: \(id)")
                self.returnUserProfileImage(id)
            } else {
                println("ID es null")
            }


        }
    })
}

我使用的是Xcode 6.4和Swift 1.2

Answer 2

能够使用此代码获取它:

    // Get user profile pic
    var fbSession = PFFacebookUtils.session()
    var accessToken = fbSession.accessTokenData.accessToken
    let url = NSURL(string: "https://graph.facebook.com/me/picture?type=large&return_ssl_resources=1&access_token="+accessToken)
    let urlRequest = NSURLRequest(URL: url!)

    NSURLConnection.sendAsynchronousRequest(urlRequest, queue: NSOperationQueue.mainQueue()) { (response:NSURLResponse!, data:NSData!, error:NSError!) -> Void in

        // Display the image
        let image = UIImage(data: data)
        self.imgProfile.image = image  

    }