class CardInputWidget extends LinearLayout {

    public void setCardNumber(String cardNumber) {
        mCardNumberEditText.setText(cardNumber);
        setCardNumberIsViewed(!mCardNumberEditText.isCardNumberValid());
    }

    public  CardInputWidget(Context context);
    public  CardInputWidget(Context context, AttributeSet attrs);
    public  CardInputWidget(Context context, AttributeSet attrs, int defStyleAttr);

}