Get all douments in a list from Firebase in Flutter

final CollectionReference items = FirebaseFirestore.instance.collection('Orders');

final body = StreamBuilder<QuerySnapshot>(
  stream: items.snapshots(),
  builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
    if (snapshot.hasError) {
      return Container(
        child: Center(
          child: Text('SOME ERROR HAS OCCURED'),
        ),
      );
    }

    if (snapshot.connectionState == ConnectionState.waiting) {
      return Loading();
    }

    return ListView(
      children: snapshot.data.docs.map((DocumentSnapshot document) {
        return new ListTile(
          title: Text(
            document.data()['Name'],
            style: TextStyle(color: Colors.white),
          ),
          leading: Text(
            document.data()['Price'],
            style: TextStyle(color: Colors.white),
          ),
        );
      }).toList(),
    );
  },
);