Android :: Right Way To Dismiss Dialog

I am trying to use a managed dialog. I noticed that after the first time I display it, subsequent creations don't actually make a new instance of the dialog, they just seem to reuse the first one. If I want to stop that, and get a brand new instance on every call, is this the right way to do it?:

@Override
protected Dialog onCreateDialog(int id) { switch (id) { case MY_DIALOG_ID:
MyDlg dlg = new MyDlg(this);
dlg.setOnDismissListener(new OnDismissListener() {
public void onDismiss(DialogInterface dialog) {
removeDialog(MY_DIALOG_ID);
} } );
return dlg;
} return null;
}

So I guess the removeDialog() call does the trick, but my onDismiss() handler should be called in every instance of the dialog being killed, right (like Dialog.cancel(), Dialog.dismiss(), hitting the back key)?