protected override void OnCreate(Bundle bundle)
{
base.OnCreate (bundle);
_signInService = new SignInService();
_signInConfiguraition = _signInService.GetConfiguration ();
// Set our view from the "main" layout resource
SetContentView (Resource.Layout.Main);
_username = FindViewById<EditText> (Resource.Id.username);
_username.KeyPress += InputKeyPress;
_password = FindViewById<EditText> (Resource.Id.password);
_password.KeyPress += InputKeyPress;
}