Flutter Flappy 搜索

Question

我正在努力将 Flutter Flappy 搜索栏连接到 firebase 集合。现在花了几天时间，似乎无法弄清楚。在控制台中出现以下错误：

VERBOSE-2:ui_dart_state.cc(157)] 未处理的异常：类型 “PlatformException”不是“Error”类型的子类型

我还在学习中，所以如果有人可以向我提供任何帮助，我将不胜感激。

class SellHousesPage extends StatelessWidget {

  Database database;
  House house;

  Future<List<House>> getHouses(String name) async {

    List houseList;

    await Future.delayed(Duration(seconds: 2));

    final List<DocumentSnapshot> documents =
        (await Firestore.instance.collection('houses').getDocuments()).documents;

    houseList = documents.map((documentSnapshot) => documentSnapshot[house.name]).toList();

    return houseList;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 20),
          child: SearchBar<House>(
            onSearch: getHouses,
            onItemFound: (House house, int index) {
              return Container(
                color: Colors.indigo,
                child: ListTile(
                  title: Text(house.name),
                ),
              );
            },
          ),
        ),
      ),
    );
  }
} 

Answer 1

试试这个：

class SellHousesPage extends StatelessWidget {
  Database database;
  House house;

  Future<List<dynamic>> getHouses(String name) async {
    QuerySnapshot response = await Firestore.instance
        .collection('houses')
        .getDocuments();

    return response.documents.map((house) => house).toList();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 20),
          child: SearchBar<House>(
            onSearch: getHouses,
            onItemFound: (House house, int index) {
              return Container(
                color: Colors.indigo,
                child: ListTile(
                  title: Text(house["name"]),
                ),
              );
            },
          ),
        ),
      ),
    );
  }
}