如何从 Firebase 的列表字段中获取数据？

Question

I am using a ListView.builder to show the data of all the documents on one page in my app. So, how can I make a ListView inside a ListView to show all data of the internal array called drinks?

Answer 1

You can handle this with FutureBuilder if you want.

FutureBuilder(
                future: FirebaseFirestore.instance
                    .collection('yourCollectionPath')
                    .doc('yourDocPath')
                    .get(),
                builder: (BuildContext context, AsyncSnapshot snapshot) {
                  if (snapshot.hasData &&
                      snapshot.connectionState == ConnectionState.done) {
                    var data = snapshot.data.data();
                    var drinks = data['drinks'];

                    return ListView.builder(
                      shrinkWrap: true,
                      itemCount: drinks.length,
                      itemBuilder: (BuildContext context, int index) {
                        return Text(drinks[index].toString());
                      },
                    );
                  } else {
                    return Text("Error");
                  }
                },
              ),

I have to mention that there are so many way to handle with this situation. This one is the simplest way.