如何在AlertDialog.Builder中传递值setSingleChoiceItems？

Question

我在android app.my开发问题是我使用了警告对话框，我在setsinglechoiceitems中传递值。但我没有通过这个价值。我的源代码如下。请给我解决方案。

public void AlertBoxShow(int position) {
        int pos=position;
        Log.v("log_tag"," position ::"+pos);
        final CharSequence[] items = { " 5 ", " 10 ", " 15 "};

        AlertDialog.Builder alt_bld = new AlertDialog.Builder(this);
        alt_bld.setSingleChoiceItems(items, -1,
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog,  int which) {

                        switch (which) {
                        case 0:
                            //updateStatus(pos);
                            dialog.dismiss();
                            // Your code when first option seletced
                            break;
                        case 1:
                            // Your code when 2nd option seletced
                            dialog.dismiss();
                            break;
                        case 2:
                            dialog.dismiss();
                            // Your code when 3rd option seletced
                            break;


                        }

                    }



                });
        AlertDialog alert = alt_bld.create();
        alert.show();
    }