public override void OnCreate (Android.OS.Bundle savedInstanceState)
{
base.OnCreate (savedInstanceState);
if (savedInstanceState != null)
mPromoWasSelected = savedInstanceState.GetBoolean (KEY_PROMO_CLICKED);
var accountName = ((BikestoreApplication) Activity.Application).AccountName;
var options = new Android.Gms.Identity.Intents.Address.AddressOptions (WalletConstants.ThemeLight);
mGoogleApiClient = new GoogleApiClient.Builder (Activity)
.AddApi (Android.Gms.Identity.Intents.Address.Api, options)
.SetAccountName (accountName)
.AddConnectionCallbacks (this)
.AddOnConnectionFailedListener (this)
.Build();
}