AlertDialog's setCancelable(false) method not working

Question

I had created an AlertDialog which is working fine. It is disappearing, if I press:
1) escape keyboard button or
2) back button using mouse
To make it stay focused even on above stated conditions, I had added '.setCancelable(false)' statement while building. But, I still see dialog disappearing. Where is the problem? Please help.

Code added:

return new AlertDialog.Builder(getActivity())
                .setIcon(R.drawable.alert_dialog_icon)
                .setTitle(title)
                .setCancelable(false)
                .setPositiveButton(R.string.alert_dialog_ok,
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int whichButton) {
                            ((FragmentAlertDialog)getActivity()).doPositiveClick();
                        }
                    }
                )
                .setNegativeButton(R.string.alert_dialog_cancel,
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int whichButton) {
                            ((FragmentAlertDialog)getActivity()).doNegativeClick();
                        }
                    }
                )
                .create();

Env: Android 4.0 on XP Professional.

Answer 1

Is this your complete code? then please change your code for setting setCancelable(false) like this

void showDialog() {
    DialogFragment newFragment = MyAlertDialogFragment.newInstance(
            R.string..alert_dialog_two_buttons_title);
    newFragment.setCancelable(false);
    newFragment.show(getFragmentManager(), "dialog");
}