Flutter ChannelListView显示频道列表，但在列表末尾显示错误

我正在尝试使用getstream.io中的flatter和stream chat flatter构建应用程序

除发现2个问题外，所有操作均按预期运行

当频道列表为空（在我删除所有频道后）并且我尝试创建新频道时，ChannelListView不会更新，我必须重新初始化小部件以使其重新工作

当频道列表显示某个频道时，会显示错误文本“加载频道时出错”

我在VSC上看到了日志并跟踪了链接，它显示QueryChannel失败，错误代码为401代码2（auth error）。我检查了一切，包括我的PHP后端（在那里我生成了auth令牌），一切都很好。我也尝试过使用devtoken，但结果是一样的。有人能解释一下我在代码上做错了什么吗？我将在这里分享我的代码

主飞镖

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  setupLocator();

  // Enable integration testing with the Flutter Driver extension.
  // See https://flutter.io/testing/ for more info.
  runApp(new MyApp());

  // Register to receive BackgroundFetch events after app is terminated.
  // Requires {stopOnTerminate: false, enableHeadless: true}
  BackgroundFetch.registerHeadlessTask(backgroundFetchHeadlessTask);
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'Test',
        theme: ThemeData(
          // primaryColor: Color.fromRGBO(5,37,17,1),
          primaryColor: Color.fromRGBO(255, 255, 255, 1),
          primaryTextTheme:
              TextTheme(headline6: TextStyle(color: Colors.black54)),
          inputDecorationTheme: InputDecorationTheme(
            labelStyle: TextStyle(
              color: Colors.black54,
              // fontSize: 24.0
            ),
          ),
        ),
        builder: (context, child) {
          return scf.StreamChat(
            child: scf.ChannelsBloc(child: child),
            // child: child,
            client: locator<ChatService>().client,
          );
        },
        home: Scaffold(resizeToAvoidBottomInset: true, body: LoginScreen()));
  }
}

截图

getCredential() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    final JsonDecoder _decoder = new JsonDecoder();
    final postUrl =
        "http://<link-to-my-local>/sc-get-token/${prefs.getString("userId")}";
    final response = await http.post(postUrl);
    var data = _decoder.convert(response.body);
    if (prefs.getString("userId") != null) {
      final client = locator<ChatService>().client;
      await client.disconnect();
      await client.connectUser(
        User(
          id: prefs.getString("userId"),
          extraData: {
            'name': StringUtils.capitalize(prefs.getString("userName")),
          },
        ),
        data['token'],
      );
      setState(() {
        Navigator.pushReplacement(
          context,
          CupertinoPageRoute(builder: (context) => new ListChannel()),
        );
      });
    }
  }

class ListChannel extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.add),
        backgroundColor: Color.fromRGBO(5, 37, 17, 1),
        onPressed: () async {
          await Navigator.push(
              context,
              new CupertinoPageRoute(
                  builder: (BuildContext context) => new NewChannel()));
        },
      ),
      appBar: new AppBar(title: Text("List Channel Diskusi")),
      body: ChannelListView(
          // emptyBuilder: (context) {
          //   return Column(
          //     mainAxisAlignment: MainAxisAlignment.center,
          //     children: [
          //       Center(
          //         child: Icon(
          //           Icons.forum,
          //           size: 56.0,
          //           color: Colors.grey,
          //         ),
          //       ),
          //       Padding(padding: EdgeInsets.only(top: 15.0)),
          //       Center(child: Text("No channels found"))
          //     ],
          //   );
          // },
          filter: {
            // "type": "messaging",
            'members': {
              '\$in': [StreamChat.of(context).user.id],
            }
          },
          sort: [
            SortOption('last_message_at')
          ],
          // pagination: PaginationParams(limit: 20),
          channelPreviewBuilder: (context, channel) =>
              _channelPreviewBuilder(context, channel)),
    );
  }

  Widget _channelPreviewBuilder(BuildContext context, Channel channel) {
    var lastMessage, subtitle, lastText, opacity;
    var lastTime = "";
    subtitle = channel.extraData['step'];
    if (channel.state.messages.length > 0) {
      lastMessage = channel.state.messages.reversed
          .firstWhere((message) => !message.isDeleted);
      lastText = "${lastMessage.user.name}: ${lastMessage.text}";
      var lastTimeMSE, date, now, today, yesterday, aDate;
      if (lastMessage.updatedAt != null) {
        lastTimeMSE = lastMessage.updatedAt.millisecondsSinceEpoch;
        date = DateTime.fromMillisecondsSinceEpoch(lastTimeMSE);
        now = DateTime.now();
        today = DateTime(now.year, now.month, now.day);
        yesterday = DateTime(now.year, now.month, now.day - 1);
        aDate = DateTime(date.year, date.month, date.day);
        if (aDate == today) {
          lastTime = DateFormat.Hm().format(date).toString();
        } else if (aDate == yesterday) {
          lastTime = "Yesterday";
        } else {
          lastTime = DateFormat('dd/MM/yy').format(date).toString();
        }
      }
      opacity = channel.state.unreadCount > .0 ? 1.0 : 0.5;
    } else {
      lastText = "";
      lastTime = "";
      opacity = 0.5;
    }

    return ListTile(
      contentPadding: EdgeInsets.symmetric(vertical: 10.0, horizontal: 15.0),
      // leading: ChannelImage(
      //   channel: channel,
      // ),
      leading: IconButton(
          icon: Icon(Icons.delete),
          onPressed: () async {
            await channel.delete();
          }),
      title: ChannelName(
        textStyle:
            StreamChatTheme.of(context).channelPreviewTheme.title.copyWith(
                  color: Colors.black.withOpacity(opacity),
                ),
      ),
      subtitle: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Padding(
            padding: EdgeInsets.symmetric(vertical: 4.0),
            child: Text(
              subtitle,
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
          ),
          Text(
            lastText,
            maxLines: 1,
            overflow: TextOverflow.ellipsis,
          ),
        ],
      ),
      trailing: Container(
        width: 65.0,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.end,
          children: [
            Padding(
                padding: EdgeInsets.only(bottom: 5.0),
                child: Text(lastTime, style: TextStyle(fontSize: 12.0))),
            channel.state.unreadCount > 0
                ? CircleAvatar(
                    radius: 7,
                    backgroundColor: Colors.green,
                  )
                : Icon(Icons.check, size: 15.0),
          ],
        ),
      ),
      onTap: () async {
        await Navigator.of(context).push(
          CupertinoPageRoute(
            builder: (context) => StreamChannel(
              child: ChannelPage(channel: channel),
              channel: channel,
            ),
          ),
        );
      },
    );
  }
}