/**
     * SnackBar
     *
     * @param view
     * @param text
     */
    private void showSnackBar(View view, String text) {
        if (snackbar == null) {
            snackbar = Snackbar.make(view, text, Snackbar.LENGTH_SHORT);
        } else {
            snackbar.setText(text);
            snackbar.setDuration(Snackbar.LENGTH_SHORT);
        }
        snackbar.show();
    }