Flutter: Items in StreamBuilder(Using firebase realtime database) are sorted randomly [duplicate]

Answer 1

When you call snap.data.snapshot.value; the data in the snapshot (which is ordered) is converted to a Map<String, Object> which isn't ordered. To maintain the order, you'll want to listen to onChild... instead.

Note that FlutterFire has a convenient firebase_list library that handles most of the heavy lifting of onChild... for you.

Also see:

• Flutter Firebase Database wrong timestamp order
• Flutter sort Firebase snapshot by timestamp
• Flutter: Firebase Real-Time database orderByChild has no impact on query result

Answer 2

This might work:

use a Query

Query comments = _firebaseRef.orderByChild('time').limitToLast(10);