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Merge pull request #429 from GetStream/perf-fixes

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fix: performance
This commit is contained in:
Salvatore Giordano
2021-05-12 13:49:39 +02:00
committed by GitHub
parent de50b1a22c 682fe3f447
commit 102fdc745f
2 changed files with 9 additions and 7 deletions
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packages/stream_chat/example/lib/main.dart
+4 -4
View File
@@ -79,21 +79,21 @@ class HomeScreen extends StatelessWidget {
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
final messages = channel.state!.channelStateStream; final messages = channel.state!.messagesStream;
return Scaffold( return Scaffold(
appBar: AppBar( appBar: AppBar(
title: Text('Channel: ${channel.id}'), title: Text('Channel: ${channel.id}'),
), ),
body: SafeArea( body: SafeArea(
child: StreamBuilder<ChannelState?>( child: StreamBuilder<List<Message>?>(
stream: messages, stream: messages,
builder: ( builder: (
BuildContext context, BuildContext context,
AsyncSnapshot<ChannelState?> snapshot, AsyncSnapshot<List<Message>?> snapshot,
) { ) {
if (snapshot.hasData && snapshot.data != null) { if (snapshot.hasData && snapshot.data != null) {
return MessageView( return MessageView(
messages: snapshot.data!.messages.reversed.toList(), messages: snapshot.data!.reversed.toList(),
channel: channel, channel: channel,
); );
} else if (snapshot.hasError) { } else if (snapshot.hasError) {
packages/stream_chat/lib/src/api/channel.dart
+5 -3
View File
@@ -2,7 +2,8 @@ import 'dart:async';
import 'dart:convert'; import 'dart:convert';
import 'dart:math'; import 'dart:math';
import 'package:collection/collection.dart' show IterableExtension; import 'package:collection/collection.dart'
show IterableExtension, ListEquality;
import 'package:dio/dio.dart'; import 'package:dio/dio.dart';
import 'package:logging/logging.dart'; import 'package:logging/logging.dart';
import 'package:rxdart/rxdart.dart'; import 'package:rxdart/rxdart.dart';
@@ -1601,8 +1602,9 @@ class ChannelClientState {
List<Message> get messages => _channelState.messages; List<Message> get messages => _channelState.messages;
/// Channel message list as a stream /// Channel message list as a stream
Stream<List<Message>?> get messagesStream => Stream<List<Message>?> get messagesStream => channelStateStream
channelStateStream.map((cs) => cs.messages); .map((cs) => cs.messages)
.distinct((prev, next) => const ListEquality().equals(prev, next));
/// Channel pinned message list /// Channel pinned message list
List<Message>? get pinnedMessages => _channelState.pinnedMessages.toList(); List<Message>? get pinnedMessages => _channelState.pinnedMessages.toList();