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dart - how to get data from firebase in flutter

I am building a flutter app and using cloud-firestore, this is how my database looks like enter image description here

I want a function that retrieves all documents in the collection called "Driver List" in an array of strings that what I had already used but it gets them back in a listview in a new screen

class DriverList extends StatelessWidget {@overrideWidget build(BuildContext context) {
return new StreamBuilder<QuerySnapshot>(
  stream: Firestore.instance.collection('DriverList').snapshots(),
  builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
    if (!snapshot.hasData) return new Text('Loading...');
    return new ListView(
      children: snapshot.data.documents.map((DocumentSnapshot document) {
        return new ListTile(
          title: new Text(document['name']),
          subtitle: new Text(document['phone']),
        );
      }).toList(),
    );
  },
);

} }

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