FirebaseAnimatedList 实时改变内容

Question

我想知道如何使用新查询、新内容更改路径来重建 FirebaseAnimatedList。

new Flexible(
              child: new FirebaseAnimatedList(
                  query: query,
                  sort: (DataSnapshot a, DataSnapshot b) =>
                      b.key.compareTo(a.key),
                  itemBuilder: (BuildContext context, DataSnapshot snapshot,
                      Animation<double> animation, int index) {...})

当我实时更改查询时，它不会更改列表中的结果:

setState(() {
  query = "another/path";
});

Answer 1

我每次更改查询时都会更改 key ，我不确定这是否是最好的方法，但正在运行:

new Flexible(
              child: new FirebaseAnimatedList(
                  key: _key,
                  query: query,
                  sort: (DataSnapshot a, DataSnapshot b) =>
                      b.key.compareTo(a.key),
                  itemBuilder: (BuildContext context, DataSnapshot snapshot,
                      Animation<double> animation, int index) {...})


setState(() {
  query = "another/path";
  _key = Key('anotherkey');
});