从AutoCompleteTextView删除字母

Question

I use a AutoCompleteTextView for login form . But i want remove a character if he is here.

Exemple : User login is : 784589. But if we write !784589, we delete "!" character.

It's possible ?

Answer 1

I've found a solution :

 AutoCompleteTextView textView5 = (AutoCompleteTextView) findViewById(R.id.userName);

        if (textView5.getText().toString().contains("#")) {
            textView5.setError(getResources().getString(R.string.connect_error));
        }
        else{
            (...)
        }