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re-subscribe connectivityStream if widget.connectivityStream changes

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Signed-off-by: Sahil Kumar <[email protected]>
This commit is contained in:
Sahil Kumar
2021-05-28 12:02:49 +05:30
parent 65bf45306a
commit 644c8b67d8
1 changed files with 46 additions and 24 deletions
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packages/stream_chat_flutter_core/lib/src/stream_chat_core.dart
+46 -24
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@@ -103,7 +103,7 @@ class StreamChatCoreState extends State<StreamChatCore>
/// The current user as a stream /// The current user as a stream
Stream<User?> get userStream => client.state.userStream; Stream<User?> get userStream => client.state.userStream;
late final StreamSubscription<ConnectivityResult> _connectivitySubscription; StreamSubscription<ConnectivityResult>? _connectivitySubscription;
var _isInForeground = true; var _isInForeground = true;
var _isConnectionAvailable = true; var _isConnectionAvailable = true;
@@ -112,23 +112,46 @@ class StreamChatCoreState extends State<StreamChatCore>
void initState() { void initState() {
super.initState(); super.initState();
WidgetsBinding.instance?.addObserver(this); WidgetsBinding.instance?.addObserver(this);
_connectivitySubscription = _subscribeToConnectivityChange(widget.connectivityStream);
(widget.connectivityStream ?? Connectivity().onConnectivityChanged) }
.listen((ConnectivityResult result) async {
_isConnectionAvailable = result != ConnectivityResult.none; void _subscribeToConnectivityChange([
if (!_isInForeground) { Stream<ConnectivityResult>? connectivityStream,
return; ]) {
} if (_connectivitySubscription == null) {
if (_isConnectionAvailable) { connectivityStream ??= Connectivity().onConnectivityChanged;
if (client.wsConnectionStatus == ConnectionStatus.disconnected) { _connectivitySubscription =
await client.connect(); connectivityStream.distinct().listen((result) {
_isConnectionAvailable = result != ConnectivityResult.none;
if (!_isInForeground) return;
if (_isConnectionAvailable) {
if (client.wsConnectionStatus == ConnectionStatus.disconnected) {
client.connect();
}
} else {
if (client.wsConnectionStatus == ConnectionStatus.connected) {
client.disconnect();
}
} }
} else { });
if (client.wsConnectionStatus == ConnectionStatus.connected) { }
await client.disconnect(); }
}
} void _unsubscribeFromConnectivityChange() {
}); if (_connectivitySubscription != null) {
_connectivitySubscription?.cancel();
_connectivitySubscription = null;
}
}
@override
void didUpdateWidget(StreamChatCore oldWidget) {
super.didUpdateWidget(oldWidget);
final connectivityStream = widget.connectivityStream;
if (connectivityStream != oldWidget.connectivityStream) {
_unsubscribeFromConnectivityChange();
_subscribeToConnectivityChange(connectivityStream);
}
} }
StreamSubscription? _eventSubscription; StreamSubscription? _eventSubscription;
@@ -137,10 +160,10 @@ class StreamChatCoreState extends State<StreamChatCore>
void didChangeAppLifecycleState(AppLifecycleState state) { void didChangeAppLifecycleState(AppLifecycleState state) {
_isInForeground = state == AppLifecycleState.resumed; _isInForeground = state == AppLifecycleState.resumed;
if (user != null) { if (user != null) {
if (!_isInForeground) { if (_isInForeground) {
_onBackground();
} else {
_onForeground(); _onForeground();
} else {
_onBackground();
} }
} }
} }
@@ -162,9 +185,8 @@ class StreamChatCoreState extends State<StreamChatCore>
} }
return; return;
} }
_eventSubscription = client.on().listen(
widget.onBackgroundEventReceived, _eventSubscription = client.on().listen(widget.onBackgroundEventReceived);
);
void onTimerComplete() { void onTimerComplete() {
_eventSubscription?.cancel(); _eventSubscription?.cancel();
@@ -178,9 +200,9 @@ class StreamChatCoreState extends State<StreamChatCore>
@override @override
void dispose() { void dispose() {
WidgetsBinding.instance?.removeObserver(this); WidgetsBinding.instance?.removeObserver(this);
_unsubscribeFromConnectivityChange();
_eventSubscription?.cancel(); _eventSubscription?.cancel();
_disconnectTimer?.cancel(); _disconnectTimer?.cancel();
_connectivitySubscription.cancel();
super.dispose(); super.dispose();
} }
} }