Android, Alert의 Button을 눌러 Event Handling

                final Handler handler = new Handler();

AlertDialog.Builder alert = new AlertDialog.Builder(context);
alert.setPositiveButton(“Button”),
                new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
//doAfter is Runnable
handler.post(doAfter);
return;
}
});