Im trying to fetch data from firebase and displaying the data into a listtile, but Im getting an error when trying to map the documents data into a list to display its contents

Here's my code

StreamBuilder<QuerySnapshot>(
                stream: users.snapshots(),
                builder: (BuildContext context,
                    AsyncSnapshot<QuerySnapshot> snapshot) {
                  if (snapshot.hasError) {
                    return const Center(
                      child: Text("Something went wrong"),
                    );
                  }

                  if (snapshot.connectionState == ConnectionState.waiting) {
                    return const Center(
                      child: Text("Loading"),
                    );
                  }

                  if (snapshot.hasData) {
                    return CustomScrollView(
                      slivers: [
                        SliverList(
                          delegate: SliverChildListDelegate(
                            snapshot.data!.docs.map(
                              (DocumentSnapshot document) {
                                Map<String, dynamic> data = document.data()!;
                                return ListTile(
                                  onTap: () => callChatDetailsScreen(
                                      context, data['name'], data['uid']),
                                  title: Text(data['name']),
                                  subtitle: Text(data['status']),
                                );
                              },
                            ).toList(),
                          ),
                        )
                      ],
                    );
                  }
                  return Container();
                })

How can I fix this?

CodePudding user response：

Change this:

(DocumentSnapshot document) {

into this:

(DocumentSnapshot<Map<String,dynamic>> document) {

data() returns a value of type T and the class DocumenSnapshot is declared in this way: abstract class DocumentSnapshot<T extends Object?>, therefore if you don't specify a type for DocumentSnapshot then data() will return a value of type Object.