void Start()
{
mBackend = new CrossBackend();
BackendManager.Init(mBackend);
MyMessenger.Instance.AddListener(BackendMessages.LOGIN_SUCCESS, OnLoginSuccess);
MyMessenger.Instance.AddListener <IBackendFailure>(BackendMessages.BACKEND_REQUEST_FAIL, OnBackendFailure);
LoginStatusText.text = STATUS_WAITING_TO_CHOOSE;
}