@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
    if (converterViewHolder.aEditText.isFocused()) {
        try {
            double aValue = Double.parseDouble(converterViewHolder.aEditText.getText().toString());
            double bValue = aValue * currency.getExchangeRate();
            converterViewHolder.bEditText.setText(String.format(CURRENCY_FORMAT, bValue));
        } catch (NumberFormatException ignore) { /* IGNORE */ }
    }
}