我试图让facebook登录我的应用程序与facebook连接,一切顺利,我创建了一个登录页面添加了一个imageView来显示用户facebook的个人资料照片,一个标签显示当我进入Facebook时,我设法显示用户的图像,但是我无法将名称的标签连接到代码以显示用户名!有人可以帮忙吗?这是我的代码:
import UIKit
import FBSDKCoreKit
import FBSDKShareKit
import FBSDKLoginKit
class ViewController: UIViewController,FBSDKLoginButtonDelegate {
@IBOutlet weak var nameLabel: UILabel!
@IBOutlet weak var profileImageView: FBSDKProfilePictureView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
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
}
}
// Facebook Delegate Methods
func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {
println("User Logged In")
if ((error) != nil)
{
// 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
}
}
}
func loginButtonDidLogOut(loginButton: FBSDKLoginButton!) {
println("User Logged Out")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
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)")
let userName : NSString = result.valueForKey("name") as! NSString
println("User Name is: \(userName)")
let userEmail : NSString = result.valueForKey("email") as! NSString
println("User Email is: \(userEmail)")
}
})
}
}
答案 0 :(得分:0)
如果您浏览调试器中的代码,userName是否设置为用户的名称?我在代码中的任何地方都没有看到您实际将UILabel nameLabel的文本设置为您的userName var。
你能提供更多细节吗?如果这只是一个疏忽,问题是你需要将nameLabel的文本设置为userName。
nameLabel.text = userName
如果这不是疏忽而且userName没有设置为用户名的正确值,那么您很可能在Facebook SDK中做错了什么。
答案 1 :(得分:0)
不确定你是否想出了这个问题,但我遇到了同样的问题,我有个人资料图片显示而不是用户名。我刚刚添加了最后一行' self。'你的代码,它工作:
let userName : NSString = result.valueForKey("name") as! NSString
print("Username is: \(userName)")
self.nameResult.text = userName as String
swap' nameResult'对于您的标签名称' nameLabel'这应该有用。