I have an app that uses Facebook authentication to login. When the onboarding screen is loading I check to see if the user is already authenticated and perform a segue to the home screen if they are using the code below:
override func viewDidLoad(animated: BOOL) {
super.viewDidLoad(animated)
if FIRAuth.auth()?.currentUser != nil {
performSegueWithIdentifier(loginSucessIdentifier, sender: self)
}
}
The thing is, if I create a test user on facebook and then sign into the simulator device with the test user login info, when I open the app it still says I am the user, not the test user and when I go to Main screen it still pulls up my info.
I checked all the examples and docs for firebase and can't find a place where they do this initial check.
Can anyone explain if I am doing the check wrong or if there is something with the facebook test user I am not doing properly.
Thanks
I finally figured out what the problem was. When a user clicks the signout button you also need to log out of facebook with FBSDKLoginKit. So when I signed back in it was still reading the credential from previous user facebook login.
let loginManager = FBSDKLoginManager()
loginManager.logOut()
Related
I'm trying to authenticate with Uber's API using watchOS 6.2's new OAuth capability ASWebAuthenticationSession:
ASWebAuthenticationSession(url: uberUrl, callbackURLScheme: scheme) { (URL?, Error?) -> in {
print(callbackUrl, error)
if let url = callbackUrl {
let components = NSURLComponents(string: (url.absoluteString))
if let t = components?.queryItems?.filter({$0.name == "code"}).first?.value {
self.token = t
}
}
}
When I run it, an adorable little web browser comes up on the Watch and prompts for a "E-mail or Mobile Number", after entering my e-mail, clicking on "Next" pops up a text entry window which then suddenly disappears, leaving me back at e-mail entry. The subsequent clicks on "Next" brings up a text entry window which only allows me to edit the e-mail address. Password is never an option. I never got the closure to complete, not even with en error.
If I scroll down to "Login with Google", then Google's login page loads, and lets me enter e-mail and password, and the completion block executes (I get a nil token presumably because my Uber account is not a Google one).
I suspect an issue with Uber's login webpage, but can't verify that other than observing that Google's seems to work. Also, I can find no documentation on the callbackURLScheme parameter with respect to watchOS. I create a scheme in the plist as one might with an iOS app, but can't confirm this is the correct procedure. Nonetheless, it doesn't change the fact that the password field will not come up on Uber's oath login page.
Searching StackOverflow for watchOS and ASWebAuthenticationSession produces no results at this point.
Is anyone else trying to do this right now? Has anyone had success? Am I missing something important, or is this simply an error on Uber's part?
I'm trying to create my mobile app user to share my Facebook page and if they do, I give them an in-game item. I'm using the example code provided by Facebook here: https://developers.facebook.com/docs/unity/examples
The first issue is that FB.ShareLink doesn't comeback negative if the user cancels the sharing action. From what I've read, that's on purpose and it only works correctly if the user is logged in and my app is authorized. I tested it and that's true, if I use the login code to first login, it comes back as positive or negative correctly.
The second issue that I'm having though is that FB.IsLoggedIn never comes back negative and I'm not sure how to properly check this because even though it comes back as true, my app is note authorized and FB.ShareLink doesn't return negative when canceled. I start the Login issue and then I press the back arrow to cancel it but FB.IsLoggedIn still comes back as true.
How can I just check if the app is authorized? I'm guessing that's all I need to check before running the FB.ShareLink code.
Any ideas?
Thanks!
First, we try to login asking for the user's e-mail address.
public void LogIntoFacebook() {
List<string> perms = new List<string>() { "email" };
FB.LogInWithReadPermissions(perms, OnLogin);
}
Then you can check to see if you got the e-mail address permission using
AccessToken token = AccessToken.CurrentAccessToken;
if (token.Permissions.Contains("email")) { // do something }
If you do, then you move forward with the Facebook share.
I am working on an app and would like to know how to automatically redirect someone to their profile page or a home page after they login into my app?
If relevant I am using the Parse UI to log in and sign up and coding in swift and using Xcode7
Any advice welcomed
PFLoginViewController has a delegate with calls that you can use to indicate when a user has successfully logged in. I believe it gets called when a user signs up as well, but I could be mistaken.
You can use those calls to signal a successful login/signup and then redirect to the appropriate view controller from there. If you want any more advice, you will need to be more specific with your question.
As far as I understand you want to redirect your user to specific view controller if user already logged in ? You can use below code in your app delegate file.
var currentUser = Parse.User.currentUser()
if currentUser != nil {
// Your redirect code
}
When a user is not signed to Game Center a UI pops up in the app. If a user is logged in to iCloud the app gets the cloudkit user ID. However, I do not understand what happens if the user is not logged in to iCLoud at all. As far as I can tell the app does not promt the user. Is there a way to do this?
Thanks,
Henry
You have to test for that yourself and take the appropriate actions. For testing the status you can use the code below. At the line where the account status is logged you could show an alert where you point the user to the settings app.
container = CKContainer.defaultContainer()
database = container.publicCloudDatabase
container.accountStatusWithCompletionHandler({status, error in
if error != nil {
NSLog("Error: Initialising EVCloudKitDao - accountStatusWithCompletionHandler.\n\(error!.description)")
} else {
self.accountStatus = status
}
NSLog("Account status = \(status.hashValue) (0=CouldNotDetermine/1=Available/2=Restricted/3=NoAccount)")
})
NSLog("Container identifier = \(container.containerIdentifier)")
The code above is a snippet from EVCloudKitDao
My app should implement login with facebook but I have noticed that every time I want to login the facebook tell me you are already authorize this app , the question if I already authorized the app the facebook should return automatically without pressing the okey button as I saw in other applications ?
see the attached image
I fixed my problem by doing the following steps :
1- login to your facebook as admin to your app.
2- go to https://developers.facebook.com/apps/YOUR_FACEBOOK_APP_ID/summary.
3- go to settings > basic > Native IOS app
4- set the Configured for iOS SSO: to enabled
In iOS/Android the FBAccessToken's expiration time is up to 60 days. When you do FBLogin in your app you get the access token. once you get the token you should not do login again(otherwise you will be prompted already authorized this app since your app has already been given an access token earlier which is not expired ). You should reuse the unexpired access token.
Like this :
if FBSDKAccessToken.currentAccessToken() != nil {
print(FBSDKAccessToken.currentAccessToken().userID)
print(currentAccessToken().tokenString)
//OR call the *FBGraphRequest*
}
Note: for in-App browser login (SVC: Safari View Controller)
see more:
https://developers.facebook.com/blog/post/2015/10/29/Facebook-Login-iOS9/
and
https://developers.facebook.com/docs/reference/ios/4.9/class/FBSDKLoginManager/
You need to make sure that your app has the proper URL Prefix in your Build Settings. Also make sure that the URL Prefix matches your Facebook ID/URL Prefix in the Facebook developer app.
Edit: Your issue is probably that the access_token is expiring so it's have to re-ask for permissions.
This will happen if your application did not request offline_access permissions. In the newer SDK offline_access is deprecated and you now have to extend the access_token.
See this link: https://developers.facebook.com/docs/mobile/ios/build/#extend_token
As this Question is already answered , but i would like to add another helpful answer for Swift 3.0 :
While using FB Login in Swift , i having issue and i previously did this way:
let fbLoginManager : FBSDKLoginManager = FBSDKLoginManager()
fbLoginManager.loginBehavior = .systemAccount
As this uses , System account to check user is authorized for login or not . Unless you logout and login through different user , application shows same "Already authorized" message in place of Fresh login . So i used this way and this trick does the work :
let fbLoginManager : FBSDKLoginManager = FBSDKLoginManager()
fbLoginManager.loginBehavior = .web.
This show Login Screen after logout.
Hope this helps to solve this issue.
Feel free to comment . Thanks.
You should check if there is a current session before logging in with FBSDKLoginManager. Do not use [loginManager logout] before logging in.
if ([FBSDKAccessToken currentAccessToken])
{
NSLog(#"Token is available : %#",[[FBSDKAccessToken currentAccessToken]tokenString]);
// Now get details using graphpath.
} else {
// login with permissions using FBSDKLoginManager and get details using graphpath in completion
}
There is a open bug at facebook.com
https://developers.facebook.com/bugs/190389531089978
But the bug only appears at android, ios works fine.
(btw. same behavior in the foursquare and spotify android app - check it out)
Run your iOS FB application into device not simulator it works fine, and didn't shows the already authorized screen.
Thank you.