Prevent Android activity dialog from closing on outside touch

   Dialog dialog =    new AlertDialog.Builder(this)
                    .setTitle("Connection Failed")
                    .setMessage("Tying to connect server, please check your network.")
                    .setIcon(android.R.drawable.ic_dialog_alert)
                    .create();
            dialog.setCanceledOnTouchOutside(false);
            dialog.show();