使用 streamBuilder 时无权访问文档。 Firebase Flutter

Question

when i try to use snapshot i dont have access to the document please check code you will understand.

Widget build(BuildContext context) {
return StreamBuilder(
    stream: FirebaseFirestore.instance.collection('chat').snapshots(),
    builder: (context, snapshot) {
      return snapshot.connectionState == ConnectionState.waiting
          ? const CircularProgressIndicator()
          : ListView.builder(
              itemCount: 2,
              itemBuilder: (context, index) => BubbleNormal(
                text: snapshot.data. // in here  i can't do snapshot.data.docs,
              ),
            );
    });
}

1 please check the image more helpful

Answer 1

As shown in the documentation on monitoring realtime changes , you'll want to declare the type of your StreamBuilder :

Widget build(BuildContext context) {
  return StreamBuilder<QuerySnapshot>(
    stream: FirebaseFirestore.instance.collection('chat').snapshots(),
    builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
      ...