Flutter :如何将列表传递给Firestore where condetion

import 'package:flutter/material.dart';
import 'package:cloud_firestore/cloud_firestore.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return StreamBuilder<QuerySnapshot>(
      stream: Firestore.instance.collection('your_collection').where('your_field', whereIn: yourList).snapshots(),
      builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
        if (snapshot.hasError) {
          return Text('Error: ${snapshot.error}');
        }

        if (snapshot.connectionState == ConnectionState.waiting) {
          return Text('Loading...');
        }

        return ListView(
          children: snapshot.data.documents.map((DocumentSnapshot document) {
            return ListTile(
              title: Text(document['your_field']),
            );
          }).toList(),
        );
      },
    );
  }
}