android format edittext to display spaces after every 4 characters

Question

Android - I want to get a number input from the user into an EditText - it needs to be separated by spaces - every 4 characters. Example: 123456781234 -> 1234 5678 1234

Answer 1

Simple Answer

    YourEditText.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

            int len=s.toString().length();

            if (before == 0 && (len == 4 || len == 9 || len == 14 ))
                YourEditText.append(" ");
        }

        @Override
        public void afterTextChanged(Editable s) {


        }
    });