1 method:
Widget _carList() {
    if (customers != null) {
      return StreamBuilder(
        stream: customers,
        builder: (context, snapshot) {
          if (snapshot.data != null) {
            return ListView.builder(
              itemCount: snapshot.data.documents.length,
              padding: EdgeInsets.all(5.0),
              itemBuilder: (context, i) {
                return new ListTile(
                  title: Text(snapshot.data.documents[i].data['pickedDay']),
                  subtitle: Text(snapshot.data.documents[i].data['pickedTime']),
                  onTap: () {
                    updateDialog(
                        context, snapshot.data.documents[i].documentID);
                  },
                  onLongPress: () {
                    crudObj.deleteData(snapshot.data.documents[i].documentID);
                  },
                );
              },
            );
          }
        },
      );
    } else {
      return Text('Loading, Please wait..');
    }
  }

2 method:
return StreamBuilder(
        stream: customers,
        builder: (context, snapshot) {
          if (snapshot.data != null) {
            return ListView.builder(
              itemCount: snapshot.data.documents.length,
              padding: EdgeInsets.all(5.0),
              itemBuilder: (context, i) {
                return new ListView(
                  children: <Widget>[
                    ListView(children: <Widget>[
                    Text(snapshot.data.documents[i].data['pickedDay']),
                    Text(snapshot.data.documents[i].data['pickedTime']),
                    Text(snapshot.data.documents[i].data['service']),
                    Text(snapshot.data.documents[i].data['phoneNumber'])
                    ],)
                  ],
                );
              },
            );
          }
        },
      );```
This is the data i get with firestore
'pickedDay': this.pickedDay,
'pickedTime': this.pickedTime,
'service': this.service,
'phoneNumber': this.phoneNumber

how do I display everything normally?