String sOperations="simplevalue";
                  intent.putExtra("simplevalue", sOperations);
                  startActivityForResult(intent, 42);

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    // if (requestCode == REQUEST_QUICKLIST) {
    if (resultCode == Activity.RESULT_OK) {

        if(requestCode==42){

            String simplevalue="";
            simplevalue=data.getStringExtra("simplevalue"); // <-- is null

            Bundle extras = data.getExtras(); // <- is null
            if(extras == null) {
                simplevalue= null;
            } else {
                simplevalue= extras.getString("simplevalue");
            }