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您好我正在使用Facebook登錄SDK用於我的IOS SWIFT APP。我想知道如何檢測此事件（如果用戶已被授權），並將其重定向到HomeScreen而不留在那裏。目前發生的情況是，一旦出現下面的屏幕，我按下完成按鈕或確定按鈕，仍顯示登錄屏幕。IOS SWIFT：您已經授權facebook ios
@IBAction func loginFacebookButton(sender: UIButton) {
let fbLoginManager : FBSDKLoginManager = FBSDKLoginManager()
fbLoginManager .logInWithReadPermissions(["email"], fromViewController: self) { (result, error) -> Void in
if (error == nil){
let fbloginresult : FBSDKLoginManagerLoginResult = result
if fbloginresult.grantedPermissions != nil {
dispatch_async(dispatch_get_main_queue()) {
self.view.addSubview(self.progressHUD)
}
if(fbloginresult.grantedPermissions.contains("email"))
{
self.getFBUserData()
//fbLoginManager.logOut()
}else{
print("sorry")
}
}}
}
}
func getFBUserData(){
if((FBSDKAccessToken.currentAccessToken()) != nil){
// print("token not nill")
FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, picture.type(large), email"]).startWithCompletionHandler({ (connection, result, error) -> Void in
if (error == nil){
var facebook = Facebook()
facebook.authenticationToken = FBSDKAccessToken.currentAccessToken().tokenString
facebook.email = result["email"] as? String
facebook.firstName = result["first_name"] as? String
facebook.lastName = result["last_name"] as? String
facebook.facebookID = result["id"] as? String
self.sendFBDataToServer(facebook)
}
})
}
}