gistfile1.java

public void toggleStatus(View view) {
        showProgressDialog("", getString(R.string.progress_loading_message));

        String status = User.AVAILABLE_STATUS;
        if (getApp().getCurrentUser().isAvailable()) {
            status = User.OFFLINE_STATUS;
        }

        final boolean initialAvailability = getApp().getCurrentUser().isAvailable();

        jetTaxiClient.updateUserStatus(status, new AjaxCallback<User>() {
            @Override
            protected void OnSuccess(User user) {
                getApp().setCurrentUser(user);

                statusButton.setChecked(user.isAvailable());
            }

            @Override
            protected void OnException(Exception e) {
                handleError(e);

                statusButton.setChecked(initialAvailability);
            }

            @Override
            protected void OnFinally() {
                dismissProgressDialog();
            }
        });
    }