Android Edittext with auto detection of credit card type

Question

I am dealing with payment option in android, By give an option to make a payment with credit card, some of the users may mistakenly choosing different credit card type for some

Answer 1

There is no native functionality for that. You have to set TextWatcher class on EditText. What it does is set a listener on your field and as you type it gives you method to check the input.

yourEditText.addTextChangedListener(new TextWatcher() {
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

                // TODO Auto-generated method stub
            }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                // TODO Auto-generated method stub
            }

            @Override
            public void afterTextChanged(Editable s) {

                //Check your Credit Card Number here.

            }


   });