How to detect special characters in an edit text and display a Toast in response (Android)?

Question

An apology for my bad English, I\'m using google translate.

I\'m creating an activity in which users must create a new profile. I put a limit to edit text of 15 char

Answer 1

If you want to pick up the special chars and support more than just the very resrictive set of English alpha bet and numbers:

String edit_text_name = YourEditTextName.getText().toString();

Pattern regex = Pattern.compile("[$&+,:;=\\\\?@#|/'<>.^*()%!-]");

if (regex.matcher(edit_text_name).find()) {
        Log.d(TAG, "SPECIAL CHARS FOUND");
        //handle your action here toast message/ snackbar or something else
        return;
}