private LayoutInflater minflater;
private ArrayList<Utente> utenti;
private int mViewResourceId;

TextView Codice,Nome,Cognome,Username,Password;
Button btnelimina;

MyDBHelper myDB;

String stringa;

int deleteCodice;


public Custom_listAdapter(Context context, int textViewResourceId, ArrayList<Utente> utenti) {
    super(context, textViewResourceId, utenti);
    this.utenti = utenti;
    minflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    mViewResourceId = textViewResourceId;
}

public View getView (final int position, View convertView, ViewGroup parent) {
    convertView = minflater.inflate(mViewResourceId,null);

    btnelimina = (Button) convertView.findViewById(R.id.belimina);
    Utente utente = utenti.get(position);
    deleteCodice = position;
    stringa = Integer.toString(position);

    if (utente != null) {
        Codice = (TextView) convertView.findViewById(R.id.textCodice);
        Nome = (TextView) convertView.findViewById(R.id.textNome);
        Cognome = (TextView) convertView.findViewById(R.id.textCognome);
        Username = (TextView) convertView.findViewById(R.id.textUsername);
        Password = (TextView) convertView.findViewById(R.id.textPassword);


        if (Nome != null) {
            Nome.setText(utente.getNome());
        }
        if (Cognome != null) {
            Cognome.setText(utente.getCognome());
        }
        if (Username != null) {
            Username.setText(utente.getUsername());
        }
        if (Password != null) {
            Password.setText(utente.getPassword());
        }
        if (Codice != null) {
            Codice.setText(stringa);
        }

        btnelimina.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                myDB.deleteData(deleteCodice);
                Intent intent = new Intent(getContext(), Login.class);
                getContext().startActivity(intent);
            }
        });
    }
    return convertView;
}