private Tuple <string, string> verifyFacebookFromSerttings()
{
Tuple <string, string> signedInResult = Tuple.Create <string, string>(string.Empty, string.Empty);
AutoResetEvent taskCompleted = new AutoResetEvent(false);
var options = new AccountStoreOptions()
{
FacebookAppId = "1626108114272416"
};
options.SetPermissions(ACFacebookAudience.Friends, new[] { "public_profile", "email" });
ACAccountStore accountStore = new ACAccountStore();
var accountType = accountStore.FindAccountType(ACAccountType.Facebook);
var facebookAccounts = accountStore.FindAccounts(accountType);
if ((facebookAccounts == null) || (facebookAccounts.Length == 0))
{
accountStore.RequestAccess(accountType, options, (granted, error2) =>
{
if (granted)
{
facebookAccounts = accountStore.FindAccounts(accountType);
}
taskCompleted.Set();
});
taskCompleted.WaitOne();
}
if ((facebookAccounts != null) && (facebookAccounts.Length > 0))
{
var facebookAccount = facebookAccounts[0];
accountStore.RenewCredentials(facebookAccount, (result, error1) =>
{
if (result == ACAccountCredentialRenewResult.Renewed)
{
var id = parseFacebookUserIdFromSettings(facebookAccount);
if (!string.IsNullOrEmpty(id))
{
signedInResult = Tuple.Create <string, string>(facebookAccount.Credential.OAuthToken, id);
}
}
taskCompleted.Set();
});
}
else
{
taskCompleted.Set();
}
taskCompleted.WaitOne();
return(signedInResult);
}
public static Task <ACAccountCredentialRenewResult> RenewCredentialsAsync(this ACAccountStore store, ACAccount account)
{
TaskCompletionSource <ACAccountCredentialRenewResult> tcs = new TaskCompletionSource <ACAccountCredentialRenewResult> ();
store.RenewCredentials(account, delegate(ACAccountCredentialRenewResult arg1, NSError arg2)
{
if (arg2 != null)
{
tcs.SetException(new NSErrorException(arg2));
}
else
{
tcs.SetResult(arg1);
}
});
return(tcs.Task);
}