Intent如何传送List<Map<?,?>>

传送方:

Intent itIntent = new Intent(GaobingdongActivity.this,
     TwoActivity.class);
    Bundle bundle = new Bundle();
    bundle.putSerializable("xx00", list);
    itIntent.putExtras(bundle);
    startActivity(itIntent);
接收方：

 Bundle bundle = this.getIntent().getExtras();
  List<Map<String, String>> list = (List<Map<String, String>>) bundle
  .getSerializable("xx00");