Using only SendingIndicatorBuilder (rename from SendingIndicatorWrapper)

packages/stream_chat_flutter/lib/src/message_widget/bottom_row.dart

@@ -204,7 +204,7 @@ class BottomRow extends StatelessWidget {
       if (showSendingIndicator)
         WidgetSpan(
           child: sendingIndicatorBuilder?.call(context, message) ??
-              SendingIndicatorWrapper(
+              SendingIndicatorBuilder(
                 messageTheme: messageTheme,
                 message: message,
                 hasNonUrlAttachments: hasNonUrlAttachments,

packages/stream_chat_flutter/lib/src/message_widget/sending_indicator_wrapper.dart

@@ -6,15 +6,16 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 ///
 /// Used in [BottomRow]. Should not be used elsewhere.
 /// {@endtemplate}
-class SendingIndicatorWrapper extends StatelessWidget {
+class SendingIndicatorBuilder extends StatelessWidget {
   /// {@macro sendingIndicatorWrapper}
-  const SendingIndicatorWrapper({
+  const SendingIndicatorBuilder({
     super.key,
     required this.messageTheme,
     required this.message,
     required this.hasNonUrlAttachments,
     required this.streamChat,
     required this.streamChatTheme,
+    this.channel,
   });
 
   /// {@macro messageTheme}
@@ -32,10 +33,13 @@ class SendingIndicatorWrapper extends StatelessWidget {
   /// {@macro streamChatThemeData}
   final StreamChatThemeData streamChatTheme;
 
+  final Channel? channel;
+
   @override
   Widget build(BuildContext context) {
     final style = messageTheme.createdAtStyle;
-    final memberCount = StreamChannel.of(context).channel.memberCount ?? 0;
+    final thisChannel = channel ?? StreamChannel.of(context).channel;
+    final memberCount = thisChannel.memberCount ?? 0;
 
     if (hasNonUrlAttachments &&
         (message.status == MessageSendingStatus.sending ||
@@ -58,11 +62,9 @@ class SendingIndicatorWrapper extends StatelessWidget {
       );
     }
 
-    final channel = StreamChannel.of(context).channel;
-
     return BetterStreamBuilder<List<Read>>(
-      stream: channel.state?.readStream,
-      initialData: channel.state?.read,
+      stream: thisChannel.state?.readStream,
+      initialData: thisChannel.state?.read,
       builder: (context, data) {
         final readList = data.where((it) =>
             it.user.id != streamChat.currentUser?.id &&