how to include custom title view with in AlertDialog in android?

you should not use the .show method with the first line, use the following code it works:

AlertDialog.Builder alert = new AlertDialog.Builder(this);
LayoutInflater inflater = getLayoutInflater();
View view = inflater.inflate(R.layout.titlebar, null);
alert.setCustomTitle(view);
alert.setMessage("helo");
alert.show();