I would like to setup a simple Alert View's OK button to act as the back button acts. What method should I use?

```
AlertDialog.Builder alt_bld = new AlertDialog.Builder(this.getContext());
                AlertDialog alert = alt_bld.create();
                alert.setTitle("Your score is: " + score);
                alert.setButton("OK", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) { 
  //here would be the "back button's method"
}});
                alert.show();   

```