在 Swift 5 中使用图 API 显示用户的 Facebook 图片

Question

我的应用程序可以成功检索用户的个人资料图片 URL 作为 link 并将其打印到控制台。但是，我将此 link 转换为在故事板文件的 UIImageView 中显示的图像。

代码如下：

import Foundation
import FacebookCore
import FacebookLogin

class HomeAfterLogInViewController: UIViewController
{
    // Links to UIImageView on storyboard
    @IBOutlet weak var imageView: UIImageView!

    override func viewDidLoad()
    {
        super.viewDidLoad()

        let requestMe = GraphRequest.init(graphPath: "me", parameters: ["fields" : "id,name,email,picture.type(large)"])

        let connection = GraphRequestConnection()

        connection.add(requestMe, completionHandler:{ (connectn, userresult, error) in

            if let dictData: [String : Any] = userresult as? [String : Any]
                {
                    DispatchQueue.main.async
                        {
                            if let pictureData: [String : Any] = dictData["picture"] as? [String : Any]
                            {
                                if let data : [String: Any] = pictureData["data"] as? [String: Any]
                                {
                                    // prints out url of profile
                                    print(data["url"] as! String)
                                }
                            }
                        }
                  }
              })
              connection.start()
          }

    }

我找到了几段代码，但 none 有效。

Answer 1

您可以使用这个名为 Haneke 的库，它非常适合缓存并添加了一些有用的方法，安装后您可以执行类似的操作

   guard let url = URL(string: urlAsString) else { return }
   yourImageView.hnk_setImageFromURL(url)

Answer 2

整个问题的答案是：

import Foundation
import FacebookCore
import FacebookLogin
import Haneke

class HomeAfterLogInViewController: UIViewController
{
    // Links to UIImageView on storyboard
    @IBOutlet weak var imageView: UIImageView!

    override func viewDidLoad()
    {
        super.viewDidLoad()

        let requestMe = GraphRequest.init(graphPath: "me", parameters: ["fields" : "id,name,email,picture.type(large)"])

        let connection = GraphRequestConnection()

        connection.add(requestMe, completionHandler:{ (connectn, userresult, error) in

            if let dictData: [String : Any] = userresult as? [String : Any]
                {
                    DispatchQueue.main.async
                        {
                            if let pictureData: [String : Any] = dictData["picture"] as? [String : Any]
                            {
                                if let data : [String: Any] = pictureData["data"] as? [String: Any]
                                {
                                    // prints out url of profile
                                    print(data["url"] as! String)

                                    guard let url = URL(string: (data["url"] as! String)) else { return }
                                    self.imageView.hnk_setImageFromURL(url)
                                }
                            }
                        }
                  }
              })
              connection.start()
          }

    }

在 Swift 5 中使用图 API 显示用户的 Facebook 图片

Showing a user's Facebook Picture using Graph API in Swift 5

uiimageview

facebook-graph-api

ios

swift5