account is always NULL in LoginViewModel

[rezamohamed]

When I run your code and set a breakpoint in the LoginViewModel where the signing credentials are checked, it is always null.

It looks like in the AppleSignInService.cs file, the var creds = await tcsCredential.Task; fires before the Signin is complete every time. If you debug and wait for the correct moment that the SignIn on the device is done and step forward this will work.

Can you help with this, please?

[rezamohamed]

argh, i found the issue. The button control in this project does not work https://github.com/CrossGeeks/SignInWithAppleSample/blob/master/SignInWithAppleSample/Controls/AppleSignInButton.cs as soon as i replaced with a regular button everything works

[MobilyteApps]

Hi rezamohamed,

When i call var account = await appleSignInService.SignInAsync(); from LoginView Model class it calls the

public async Task SignInAsync()
{
var appleIdProvider = new ASAuthorizationAppleIdProvider();
var request = appleIdProvider.CreateRequest();
request.RequestedScopes = new[] { ASAuthorizationScope.Email, ASAuthorizationScope.FullName };

            var authorizationController = new ASAuthorizationController(new[] { request });
            authorizationController.Delegate = this;
            authorizationController.PresentationContextProvider = this;
            authorizationController.PerformRequests();

            tcsCredential = new TaskCompletionSource<ASAuthorizationAppleIdCredential>();

            var creds = await tcsCredential.Task;

            if (creds == null)
                return null;

            var appleAccount = new AppleAccount();
            appleAccount.Token = new NSString(creds.IdentityToken, NSStringEncoding.UTF8).ToString();
            appleAccount.Email = creds.Email;
            appleAccount.UserId = creds.User;
            appleAccount.Name = NSPersonNameComponentsFormatter.GetLocalizedString(creds.FullName, NSPersonNameComponentsFormatterStyle.Default, NSPersonNameComponentsFormatterOptions.Phonetic);
            appleAccount.RealUserStatus = creds.RealUserStatus.ToString();

        return appleAccount;
    }

But i got the error

var appleIdProvider = new ASAuthorizationAppleIdProvider();

Error:-

Could not create an native instance of the type 'AuthenticationServices.ASAuthorizationAppleIdProvider': the native class hasn't been loaded.
It is possible to ignore this condition by setting ObjCRuntime.Class.ThrowOnInitFailure to false.

Note:- Which iPhone device have you tested ?

Thanks

[rezamohamed]

@MobilyteApps I am only pulling the email, userid and name like so (I left the lines commented out to show the difference):

            var appleAccount = new AppleAccount();
            //appleAccount.Token = new NSString(creds.IdentityToken, NSStringEncoding.UTF8).ToString();
            appleAccount.Email = creds.Email;
            appleAccount.UserId = creds.User;
            // appleAccount.FullName = NSPersonNameComponentsFormatter.GetLocalizedString(creds.FullName, NSPersonNameComponentsFormatterStyle.Medium, NSPersonNameComponentsFormatterOptions.Phonetic);
            appleAccount.FirstName = creds.FullName?.GivenName ?? "";
            appleAccount.LastName = creds.FullName?.FamilyName ?? "";
            //appleAccount.RealUserStatus = creds.RealUserStatus.ToString();

Also, have you created the Service in appdelegate? I am using prism, so I have defined the service as follows in Appdelegate

    public class iOSInitializer : IPlatformInitializer
    {
        public void RegisterTypes(IContainerRegistry containerRegistry)
        {
            // Register any platform specific implementations
            containerRegistry.RegisterSingleton<IFacebookLoginService, FacebookLoginService>();
            containerRegistry.RegisterSingleton<IAppleSignInService, AppleSignInService>();
        }
    }

[amrkamal1993]

@MobilyteApps
Did you solve this problem ?