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refactor: use ListView for chat perf

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Kieran
2025-05-12 13:42:01 +01:00
parent af2879406e
commit 4b363762dd
1 changed files with 37 additions and 23 deletions
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60
lib/widgets/chat.dart
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@ -47,6 +47,8 @@ class ChatWidget extends StatelessWidget {
_ => e.pubKey,
}),
)
.sortedBy((e) => e.createdAt)
.reversed
.toList();
return Column(
@ -55,27 +57,39 @@ class ChatWidget extends StatelessWidget {
children: [
_TopZappersWidget(events: filteredChat),
Expanded(
child: SingleChildScrollView(
child: ListView.builder(
reverse: true,
child: Column(
spacing: 8,
crossAxisAlignment: CrossAxisAlignment.start,
children:
filteredChat
.sortedBy((c) => c.createdAt)
.map(
(c) => switch (c.kind) {
1311 => ChatMessageWidget(stream: stream, msg: c),
9735 => _ChatZapWidget(stream: stream, zap: c),
_ => SizedBox.shrink(),
},
)
.toList(),
),
shrinkWrap: true,
primary: true,
itemCount: filteredChat.length,
itemBuilder:
(ctx, idx) => switch (filteredChat[idx].kind) {
1311 => Padding(
padding: EdgeInsets.symmetric(
horizontal: 2,
vertical: 2,
),
child: _ChatMessageWidget(
stream: stream,
msg: filteredChat[idx],
),
),
9735 => Padding(
padding: EdgeInsets.symmetric(
horizontal: 2,
vertical: 2,
),
child: _ChatZapWidget(
stream: stream,
zap: filteredChat[idx],
),
),
_ => SizedBox.shrink(),
},
),
),
if (stream.info.status == StreamStatus.live)
WriteMessageWidget(stream: stream),
_WriteMessageWidget(stream: stream),
if (stream.info.status == StreamStatus.ended)
Container(
padding: EdgeInsets.all(8),
@ -220,11 +234,11 @@ class _ChatZapWidget extends StatelessWidget {
}
}
class ChatMessageWidget extends StatelessWidget {
class _ChatMessageWidget extends StatelessWidget {
final StreamEvent stream;
final Nip01Event msg;
const ChatMessageWidget({super.key, required this.stream, required this.msg});
const _ChatMessageWidget({required this.stream, required this.msg});
@override
Widget build(BuildContext context) {
@ -268,16 +282,16 @@ class ChatMessageWidget extends StatelessWidget {
}
}
class WriteMessageWidget extends StatefulWidget {
class _WriteMessageWidget extends StatefulWidget {
final StreamEvent stream;
const WriteMessageWidget({super.key, required this.stream});
const _WriteMessageWidget({required this.stream});
@override
State<StatefulWidget> createState() => _WriteMessageWidget();
State<StatefulWidget> createState() => __WriteMessageWidget();
}
class _WriteMessageWidget extends State<WriteMessageWidget> {
class __WriteMessageWidget extends State<_WriteMessageWidget> {
final TextEditingController _controller = TextEditingController();
Future<void> _sendMessage() async {