android - Formatting EditText phone number as user types -

i'd edit edittext field content everytime user types new character. want format phone number using libphonenumber.

i implemented textwatcher reads field content , formats phone format. every time set edittext text formatted string, watcher called again, sets text once more, , gets stuck in infinite loop.

what best or proper way edit text user types?

@override public void aftertextchanged(editable editable) {     if (editable.length() > 1) {         try {             phonenumberutil phoneutil = phonenumberutil.getinstance();             phonenumber numberproto = phoneutil.parse(editable.tostring(), "br");             string formatted = phoneutil.format(numberproto, phonenumberformat.national);             telephone.settext(formatted);         } catch (numberparseexception e) {            log.d("telefone", "numberparseexception thrown: " + e.tostring());         }     } } 

you need careful calling settext method inside textwatcher. otherwise create infinite loop, because changing text.

you try following set text if really necessary:

if(!telephone.gettext().tostring().equals(formatted)) {     telephone.settext(formatted); } 

instead of just:

telephone.settext(formatted); 

that way should able avoid creating infinite loop