I am migrate flutter app from Firebase realtime database to firestore. I have trouble with update this code in chat app because firestore no have FirebaseAnimatedList.
Old code:
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text(“chat“),
),
body: new Container(
child: new Column(
children: <Widget>[
new Flexible(
child: new FirebaseAnimatedList(
query: reference,
sort: (a, b) => b.key.compareTo(a.key),
padding: new EdgeInsets.all(8.0),
reverse: true,
itemBuilder: (_, DataSnapshot snapshot,
Animation<double> animation, int x) {
return new ChatMessage(
snapshot: snapshot, animation: animation);
},
),
),
New code (but give me errors):
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text(“chat"),
),
body: new Container(
child: new Column(
children: <Widget>[
new Flexible(
child: new StreamBuilder<QuerySnapshot>(
stream: reference.snapshots(),
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
return snapshot.hasData? new ListView(
physics: const AlwaysScrollableScrollPhysics(),
reverse: true,
padding: new EdgeInsets.all(8.0),
children: snapshot.data.documents.map(DocumentSnapshot snapshot) {
return new ChatMessage(
snapshot: snapshot,
animation: animation,
);
})
),
reference:
final reference = Firestore.instance.collection('messages');
Any help?
I have look up: Firestore StreamBuilder with nested AnimatedList How to bind a Firestore documents list to a Dropdown menu in Flutter? How to listen for document changes in Cloud Firestore using Flutter?
Update:
Thanks everyone for response! I make some changes.
New code:
child: new StreamBuilder<QuerySnapshot>(
stream: reference.snapshots(),
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
if (!snapshot.hasData) return new Text('loading...');
return new ListView(
children: snapshot.data.documents.map((DocumentSnapshot snapshot) {
return new ChatMessage(
snapshot: snapshot,
animation: animation,
);
}).toList(),
);
}
),
),
Now only error is in animation. I have error: undefined name 'animation'