channel and message lists

flutter/lib/pages/channel_list/channel_list_item.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+
+import '../../models/channel.dart';
+
+class ChannelListItem extends StatelessWidget {
+  const ChannelListItem({
+    required this.channel,
+    super.key,
+  });
+
+  final Channel channel;
+
+  @override
+  Widget build(BuildContext context) => ListTile(
+        leading: const SizedBox(width: 40, height: 40, child: const Placeholder()),
+        title: Text(channel.internalName),
+      );
+}

flutter/lib/pages/channel_list/root.dart

@@ -0,0 +1,64 @@
+import 'package:flutter/material.dart';
+import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
+import 'package:provider/provider.dart';
+import 'package:simplecloudnotifier/api/api_client.dart';
+import 'package:simplecloudnotifier/models/channel.dart';
+
+import '../../state/user_account.dart';
+import 'channel_list_item.dart';
+
+class ChannelRootPage extends StatefulWidget {
+  const ChannelRootPage({super.key});
+
+  @override
+  State<ChannelRootPage> createState() => _ChannelRootPageState();
+}
+
+class _ChannelRootPageState extends State<ChannelRootPage> {
+  final PagingController<int, Channel> _pagingController = PagingController(firstPageKey: 0);
+
+  late UserAccount userAcc;
+
+  @override
+  void initState() {
+    _pagingController.addPageRequestListener((pageKey) {
+      _fetchPage(pageKey);
+    });
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    _pagingController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _fetchPage(int pageKey) async {
+    final acc = Provider.of<UserAccount>(context, listen: false);
+
+    if (acc.auth == null) {
+      _pagingController.error = 'Not logged in';
+      return;
+    }
+
+    try {
+      final items = await APIClient.getChannelList(acc.auth!, ChannelSelector.all);
+
+      _pagingController.appendLastPage(items);
+    } catch (error) {
+      _pagingController.error = error;
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return PagedListView<int, Channel>(
+      pagingController: _pagingController,
+      builderDelegate: PagedChildBuilderDelegate<Channel>(
+        itemBuilder: (context, item, index) => ChannelListItem(
+          channel: item,
+        ),
+      ),
+    );
+  }
+}