public void SignIn()
{
verifyInit();
Task.Run(async() =>
{
try
{
var gsoBuilder = new GoogleSignInOptions.Builder(GoogleSignInOptions.DefaultSignIn)
.RequestIdToken(_clientId)
.RequestEmail();
var gso = gsoBuilder.Build();
_googleApiClient = new GoogleApiClient.Builder(_context)
.AddApi(Auth.GOOGLE_SIGN_IN_API, gso)
.Build();
_googleApiClient.Connect();
if (signInResultSource != null && !signInResultSource.Task.IsCompleted)
{
signInResultSource.TrySetCanceled();
}
signInResultSource = new TaskCompletionSource <GoogleSignInResult>();
var signInIntent = Auth.GoogleSignInApi.GetSignInIntent(_googleApiClient);
_context.StartActivityForResult(signInIntent, RC_SIGN_IN);
var result = await signInResultSource.Task;
if (result == null || result.Status.IsCanceled || result.Status.IsInterrupted)
{
_callbackDelegate.OnConnectionFailed("Connection cancelled");
return;
}
if (!result.IsSuccess)
{
_callbackDelegate.OnConnectionFailed(result.Status.StatusMessage);
return;
}
_accountName = result.SignInAccount?.DisplayName;
_idToken = result.SignInAccount?.IdToken;
_callbackDelegate.OnConnectionSucceeded();
}
catch (Exception ex)
{
_callbackDelegate.OnConnectionFailed(ex.Message);
}
});
}
public override void DidSignInForUser(GIDSignIn signIn, GIDGoogleUser user, NSError error)
{
if (error == null)
{
_idToken = user.Authentication.IdToken;
_accountName = user.Profile.Name;
if (_callbackDelegate != null)
{
_callbackDelegate.OnConnectionSucceeded();
}
}
else
{
if (_callbackDelegate != null)
{
_callbackDelegate.OnConnectionFailed(error.Description);
}
}
}