does Flutter firebase auto paginate with stremBuilder?

Question

I am using Firestore snapshots as a stream builder and loading widgets with listwiew builder. will it auto-paginate? does Flutter Firebase auto paginate with StremBuilder?

class twatter extends StatefulWidget {
  const twatter({super.key});

  @override
  State<twatter> createState() => _twatterState();
}

class _twatterState extends State<twatter> {
  Stream<QuerySnapshot<Map<String, dynamic>>>? stream;
  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    stream = FirebaseFirestore.instance
        .collection('Apps')
        .doc('Twatter')
        .collection('userTweets')
        .orderBy('time', descending: false)
        .snapshots();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Color(0xff111218),
      // backgroundColor: Color.fromARGB(255, 17, 17, 17),
      body: SafeArea(
        child: StreamBuilder(
          stream: stream,
          builder: (context, snapshot) {
            if (snapshot.hasData) {
              return ListView.builder(
                itemCount: snapshot.data!.docs.length,
                cacheExtent: 9999,
                itemBuilder: (context, index) {
                  final post = snapshot.data!.docs[index];

                  return tweet(
                    postID: post.id,
                    tweetStr: post['tweetStr'],
                    userID: post['userID'],
                    nickName: post['nickname'],
                    time: "${post['time']}",
                    likes:
                        '${post['agree'].length + post['mid'].length + post['disagree'].length}',
                    comments: '200',
                    retweets: '1k',
                    greenPercentage: post['agree'],
                    yellowPercentage: post['mid'],
                    redPercentage: post['disagree'],
                    postImageUrl: post['postImageUrl'],
                    profileImageUrl: post['profileImageUrl'],
                    isVerified: true,
                  );
                },
              );
            } else if (snapshot.hasError) {
              return Padding(
                padding: const EdgeInsets.all(8.0),
                child: Center(
                  child: Text('Error: ${snapshot.error}',
                      style:
                          TextStyle(color: Colors.white, fontFamily: 'retro')),
                ),
              );
            } else {
              return CircularProgressIndicator();
            }
          },
        ),
      ),
    );
  }
}

i tried a lot of pagination methords but what i want is for the stream to auto update while also paginating. how do i do that ?

"does Flutter firebase auto paginate with stremBuilder?" No it doesn't. But since I assume that is not very helpful to you, I recommend showing what you tried with the [pagination samples](https://firebase.google.com/docs/firestore/query-data/query-cursors) from the documentation, and [where you got stuck](http://stackoverflow.com/help/mcve). — Frank van Puffelen, Jun 20 '23 at 10:44

score 0 · Answer 1 · answered Jun 26 '23 at 12:41

Does Flutter Firebase auto-paginate with StreamBuilder?

As @FrankvanPuffelen mentioned in his comment, the simplest answer is no. Why? Because the StreamBuilder in Flutter is only a widget that builds itself based on the latest snapshot of interaction with a stream.

When you perform a query in Firestore, the snapshot object that is returned will contain all documents that satisfy the query. If you need to get the documents in smaller chunks, then you have to implement pagination and load the data progressively.

Hey Sahil. Did my answer help? Can I help you with other information? — Alex Mamo, Jul 10 '23 at 05:33

does Flutter firebase auto paginate with stremBuilder?

1 Answers1