Ios 解析Facebook登录/注册不起作用(Swift)
一个多月以来,我一直在尝试使用Swift将Parse的Facebook登录功能应用到我的应用程序中,但我似乎无法理解。我成功地将我的应用程序分别链接到Facebook和Parse,但我无法使用Facebook的登录名创建Parse用户。我相信AppDelegate的设置是正确的,因此我将只显示我的LoginViewController,希望知道他们在做什么的人能够帮助我:Ios 解析Facebook登录/注册不起作用(Swift),ios,swift,facebook-graph-api,parse-platform,pfuser,Ios,Swift,Facebook Graph Api,Parse Platform,Pfuser,一个多月以来,我一直在尝试使用Swift将Parse的Facebook登录功能应用到我的应用程序中,但我似乎无法理解。我成功地将我的应用程序分别链接到Facebook和Parse,但我无法使用Facebook的登录名创建Parse用户。我相信AppDelegate的设置是正确的,因此我将只显示我的LoginViewController,希望知道他们在做什么的人能够帮助我: import UIKit import Parse import FBSDKCoreKit import FBSDKLogi
import UIKit
import Parse
import FBSDKCoreKit
import FBSDKLoginKit
protocol LoginViewControllerDelegate {
func onRegister(loginViewController : LoginViewController)
func onFacebookLogin(loginViewController : LoginViewController)
func onLogin(loginViewController : LoginViewController)
}
class LoginViewController: UIViewController, FBSDKLoginButtonDelegate {
//MARK: - Outlets
@IBOutlet weak var lblStatus: UILabel!
//var delegate : LoginViewControllerDelegate?
// Set permissions required from the facebook user account
let permissions = [ "user_about_me", "user_relationships", "user_location", "user_birthday", "public_profile", "user_friends", "user_email", "user_gender"]
//MARK: - Initial Load
override func viewDidLoad() {
super.viewDidLoad()
self.lblStatus.alpha = 0
//Facebook
if (FBSDKAccessToken.currentAccessToken() != nil)
{
// User is already logged in, do work such as go to next view controller.
}
else
{
let loginView : FBSDKLoginButton = FBSDKLoginButton()
// self.view.addSubview(loginView)
// loginView.center = self.view.center
// loginView.readPermissions = ["public_profile", "email", "user_friends"]
loginView.delegate = self
}
// ---------------------------- Check if user is logged in ---------------------
if PFUser.currentUser() != nil {
println("parse: User already logged in")
performSegueWithIdentifier("loggedIn", sender: self)
}
}
//MARK: - Facebook Login Button
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {
if ((error) != nil) {
println(error) // Process error
} else if result.isCancelled { // Handle cancellations
} else {
// If you ask for multiple permissions at once, you
// should check if specific permissions missing
if result.grantedPermissions.contains("email")
{
// Do work
}
}
returnUserData()
}
@IBAction func facebookLoginDidPress(sender: AnyObject) {
self.lblStatus.alpha = 0
PFFacebookUtils.logInInBackgroundWithReadPermissions(self.permissions, block: {
(user: PFUser?, error: NSError?) -> Void in
if (user == nil) {
if (error == nil) {
println("User cancelled FB login")
self.lblStatus.alpha = 1
}else{
println("FB login error: \(error)")
self.lblStatus.alpha = 1
}
} else if user!.isNew {
println("User signed up and logged in with Facebook! \(user)")
self.requestFacebook()
self.returnUserData()
self.performSegueWithIdentifier("loggedIn", sender: self)
} else {
println("User logged in via Facebook \(user)")
self.performSegueWithIdentifier("loggedIn", sender: self)
}
})
}
func requestFacebook() {
let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: nil)
graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in
if ((error) != nil)
{
// Process error
println("Error: \(error)")
}
else if error == nil
{
var userData: NSDictionary = NSDictionary(objectsAndKeys: result)
var facebookID: AnyObject? = userData["id"]
var name: AnyObject? = userData["first_name"]
var gender: AnyObject? = userData["gender"]
var birthday: AnyObject? = userData["birthday"]
var pictureURL = "https://graph.facebook.com/\(facebookID)/picture?type=large&return_ssl_resources=1"
var URLRequest = NSURL(string: pictureURL)
var URLRequestNeeded = NSURLRequest(URL: URLRequest!)
NSURLConnection.sendAsynchronousRequest(URLRequestNeeded, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse!,data: NSData!, error: NSError!) -> Void in
if error == nil {
var picture = PFFile(data: data)
PFUser.currentUser()!.setObject(picture, forKey: "profilePicture")
PFUser.currentUser()!.saveInBackground()
}
else {
println("Error: \(error.localizedDescription)")
}
})
}
})
}
func loginButtonDidLogOut(loginButton: FBSDKLoginButton!) {
println("User Logged Out")
}
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
{
if let userName : NSString = result.valueForKey("name") as? NSString {
println("User Name is: \(userName)")
} else {println("No username fetched")}
if let userEmail : NSString = result.valueForKey("email") as? NSString {
println("User Email is: \(userEmail)")
} else {println("No email address fetched")}
if let userGender : NSString = result.valueForKey("gender") as? NSString {
println("User Gender is: \(userGender)")
} else {println("No gender fetched") }
}
})
}
}
需要注意的一些重要事项:
我将永远感谢任何能帮助我解决这个困扰我太久的问题的人。提前谢谢你 我删除了旧的PFFacebookUtils框架,但保留了PFFacebookUtilsV4框架,这为我解决了问题!希望这能帮助其他人解决这个问题:)我也有同样的问题,我的解决方案是定义Login behavior=Web
PFFacebookUtils.facebookLoginManager().loginBehavior = FBSDKLoginBehavior.Web
当我在呼叫登录前呼叫此后台…,单击“确定”按钮后,我的应用程序收到一个用户(不是nil)的回拨,并且PFUser.currentUser将使用该用户进行更新。我一直在尝试为您解决此问题,但到目前为止运气不佳。首先,我把你的代码剔除到了问题的核心部分。基本上,PFFacebookUtils.LoginBackgroundWithReadPermissions在@iAction内时会显示此错误。我发现,如果要检查用户是否已登录(使用PFFacebookUtils.isLinkedWithUser),如果未登录,则自动登录,则不会出现此错误。希望这能有所帮助,尽管它不能解决问题。似乎有一个问题,它进入后台时仍处于活动状态@IBAction@CraigGrummitt到目前为止有新的运气吗?是否可以使用FBSDKLoginButton而不是带有UIButton的@IBAction来执行解析登录?很抱歉,我没有时间再看一遍,很高兴看到您已经解决了这个问题。@CraigGrummitt不用担心,谢谢。然而,为了解决这个问题,出现了一个新的(似乎是最后一个)问题。如果不太麻烦的话,你能看看我的新问题吗?到目前为止,我还没有找到任何解决方案:我真的很感谢你的帮助。这很好,但它要求用户键入他们的电子邮件和密码,这几乎违背了Facebook登录的目的。