Making an EditText field accept only letters and white spaces in Android

Question

I have an EditText field in my project which stands for the full name of the person.So I want only letters and spaces to be allowed in it.So I tried the following in the

Answer 1

Try this solution, it block entering number, special characters except space.

editText.setFilters(new InputFilter[] {
   new InputFilter() {
   @Override
   public CharSequence filter(CharSequence cs, int start,
       int end, Spanned spanned, int dStart, int dEnd) {

   return cs.toString().replaceAll("[^a-zA-Z ]*","");
    }
    }
});

Kotlin Version:

editText.filters = arrayOf(
            InputFilter { source, start, end, dest, dstart, dend ->
                return@InputFilter source.replace(Regex("[^a-zA-Z ]*"), "")
            }
        )