ftfbmsgread.dart

// stream builder in dart using the new firebase commands

StreamBuilder<QuerySnapshot>(
              stream: _firestore.collection('messages').snapshots(),
              builder: (context, snapshot) {
                if (snapshot.hasData) {
                  final messages = snapshot.data.docs;
                  List<Text> messageWidget = [];
                  for (var message in messages) {
                    final messageText = message.get('text');
                    final messageSender = message.get('sender');
                    final messagewidg = Text('$messageText from '
                        '$messageSender');
                    messageWidget.add(messagewidg);
                  }
                  return Column(
                    children: messageWidget,
                  );
                }
                return Text('some error occurred');
              },
            ),