♻️ Refactored navigation

2024-07-12 16:19:54 +08:00 · 2024-07-12 16:19:54 +08:00 · aa43eaa0eb
commit aa43eaa0eb
parent 48b76ed574
27 changed files with 115 additions and 197 deletions
--- a/lib/router.dart
+++ b/lib/router.dart
@ -17,7 +17,7 @@ import 'package:solian/screens/realms.dart';
 import 'package:solian/screens/realms/realm_detail.dart';
 import 'package:solian/screens/realms/realm_organize.dart';
 import 'package:solian/screens/realms/realm_view.dart';
-import 'package:solian/screens/feed.dart';
+import 'package:solian/screens/home.dart';
 import 'package:solian/screens/posts/post_editor.dart';
 import 'package:solian/shells/basic_shell.dart';
 import 'package:solian/shells/root_shell.dart';
@ -48,8 +48,8 @@ abstract class AppRouter {
    routes: [
      GoRoute(
        path: '/',
-        name: 'feed',
-        builder: (context, state) => const FeedScreen(),
+        name: 'home',
+        builder: (context, state) => const HomeScreen(),
      ),
      GoRoute(
        path: '/feed/search',
--- a/lib/screens/articles/article_detail.dart
+++ b/lib/screens/articles/article_detail.dart
@ -4,7 +4,7 @@ import 'package:solian/exts.dart';
 import 'package:solian/models/articles.dart';
 import 'package:solian/providers/content/feed.dart';
 import 'package:solian/widgets/articles/article_item.dart';
-import 'package:solian/widgets/centered_container.dart';
+import 'package:solian/widgets/sized_container.dart';

 class ArticleDetailScreen extends StatefulWidget {
  final String alias;
--- a/lib/screens/articles/article_editor.dart
+++ b/lib/screens/articles/article_editor.dart
@ -10,7 +10,6 @@ import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
 import 'package:solian/widgets/attachments/attachment_publish.dart';
 import 'package:solian/widgets/feed/feed_tags_field.dart';
-import 'package:solian/widgets/prev_page.dart';
 import 'package:textfield_tags/textfield_tags.dart';
 import 'package:badges/badges.dart' as badges;

@ -133,7 +132,6 @@ class _ArticlePublishScreenState extends State<ArticlePublishScreen> {
          title: AppBarTitle('articlePublish'.tr),
          centerTitle: false,
          toolbarHeight: SolianTheme.toolbarHeight(context),
-          leading: const PrevPageButton(),
          actions: [
            TextButton(
              onPressed: _isBusy ? null : () => applyPost(),
--- a/lib/screens/channel/call/call.dart
+++ b/lib/screens/channel/call/call.dart
@ -7,7 +7,6 @@ import 'package:solian/providers/content/call.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/chat/call/call_controls.dart';
 import 'package:solian/widgets/chat/call/call_participant.dart';
-import 'package:solian/widgets/prev_page.dart';

 class CallScreen extends StatefulWidget {
  const CallScreen({super.key});
@ -72,7 +71,6 @@ class _CallScreenState extends State<CallScreen> {
              ),
            ]),
          ),
-          leading: const PrevPageButton(),
        ),
        body: SafeArea(
          child: Obx(
--- a/lib/screens/channel/channel_organize.dart
+++ b/lib/screens/channel/channel_organize.dart
@ -9,7 +9,6 @@ import 'package:solian/providers/content/channel.dart';
 import 'package:solian/router.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
-import 'package:solian/widgets/prev_page.dart';
 import 'package:uuid/uuid.dart';

 class ChannelOrganizeArguments {
@ -112,7 +111,6 @@ class _ChannelOrganizeScreenState extends State<ChannelOrganizeScreen> {
          title: AppBarTitle('channelOrganizing'.tr),
          centerTitle: false,
          toolbarHeight: SolianTheme.toolbarHeight(context),
-          leading: const PrevPageButton(),
          actions: [
            TextButton(
              onPressed: _isBusy ? null : () => applyChannel(),
--- a/lib/screens/chat.dart
+++ b/lib/screens/chat.dart
@ -12,7 +12,6 @@ import 'package:solian/widgets/app_bar_title.dart';
 import 'package:solian/widgets/channel/channel_list.dart';
 import 'package:solian/widgets/chat/call/chat_call_indicator.dart';
 import 'package:solian/widgets/current_state_action.dart';
-import 'package:solian/widgets/drawer_button.dart' as drawer;

 class ChatScreen extends StatefulWidget {
  const ChatScreen({super.key});
@ -95,7 +94,6 @@ class _ChatScreenState extends State<ChatScreen> {
                      title: AppBarTitle('chat'.tr),
                      centerTitle: false,
                      floating: true,
-                      leading: const drawer.DrawerButton(),
                      toolbarHeight: SolianTheme.toolbarHeight(context),
                      actions: [
                        const BackgroundStateWidget(),
--- a/lib/screens/feed/draft_box.dart
+++ b/lib/screens/feed/draft_box.dart
@ -6,14 +6,13 @@ import 'package:solian/models/feed.dart';
 import 'package:solian/models/pagination.dart';
 import 'package:solian/models/post.dart';
 import 'package:solian/providers/content/feed.dart';
-import 'package:solian/screens/feed.dart';
+import 'package:solian/screens/home.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
 import 'package:solian/widgets/articles/article_action.dart';
 import 'package:solian/widgets/articles/article_owned_list.dart';
 import 'package:solian/widgets/posts/post_action.dart';
 import 'package:solian/widgets/posts/post_owned_list.dart';
-import 'package:solian/widgets/prev_page.dart';

 class DraftBoxScreen extends StatefulWidget {
  const DraftBoxScreen({super.key});
@ -66,7 +65,6 @@ class _DraftBoxScreenState extends State<DraftBoxScreen> {
          title: AppBarTitle('draftBox'.tr),
          centerTitle: false,
          toolbarHeight: SolianTheme.toolbarHeight(context),
-          leading: const PrevPageButton(),
          actions: [
            FeedCreationButton(
              hideDraftBox: true,
--- a/lib/screens/home.dart
+++ b/lib/screens/home.dart
@ -11,16 +11,15 @@ import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
 import 'package:solian/widgets/current_state_action.dart';
 import 'package:solian/widgets/feed/feed_list.dart';
-import 'package:solian/widgets/drawer_button.dart' as drawer;

-class FeedScreen extends StatefulWidget {
-  const FeedScreen({super.key});
+class HomeScreen extends StatefulWidget {
+  const HomeScreen({super.key});

  @override
-  State<FeedScreen> createState() => _FeedScreenState();
+  State<HomeScreen> createState() => _HomeScreenState();
 }

-class _FeedScreenState extends State<FeedScreen> {
+class _HomeScreenState extends State<HomeScreen> {
  final PagingController<int, FeedRecord> _pagingController =
      PagingController(firstPageKey: 0);

@ -60,11 +59,10 @@ class _FeedScreenState extends State<FeedScreen> {
          child: CustomScrollView(
            slivers: [
              SliverAppBar(
-                title: AppBarTitle('feed'.tr),
+                title: AppBarTitle('home'.tr),
                centerTitle: false,
                floating: true,
                toolbarHeight: SolianTheme.toolbarHeight(context),
-                leading: const drawer.DrawerButton(),
                actions: [
                  const BackgroundStateWidget(),
                  const NotificationButton(),
--- a/lib/screens/posts/post_detail.dart
+++ b/lib/screens/posts/post_detail.dart
@ -3,7 +3,7 @@ import 'package:get/get.dart';
 import 'package:solian/exts.dart';
 import 'package:solian/models/post.dart';
 import 'package:solian/providers/content/feed.dart';
-import 'package:solian/widgets/centered_container.dart';
+import 'package:solian/widgets/sized_container.dart';
 import 'package:solian/widgets/posts/post_item.dart';
 import 'package:solian/widgets/posts/post_replies.dart';

--- a/lib/screens/posts/post_editor.dart
+++ b/lib/screens/posts/post_editor.dart
@ -12,7 +12,6 @@ import 'package:solian/widgets/app_bar_title.dart';
 import 'package:solian/widgets/attachments/attachment_publish.dart';
 import 'package:solian/widgets/posts/post_item.dart';
 import 'package:solian/widgets/feed/feed_tags_field.dart';
-import 'package:solian/widgets/prev_page.dart';
 import 'package:textfield_tags/textfield_tags.dart';
 import 'package:badges/badges.dart' as badges;

@ -137,7 +136,6 @@ class _PostPublishScreenState extends State<PostPublishScreen> {
          title: AppBarTitle('postPublish'.tr),
          centerTitle: false,
          toolbarHeight: SolianTheme.toolbarHeight(context),
-          leading: const PrevPageButton(),
          actions: [
            TextButton(
              onPressed: _isBusy ? null : () => applyPost(),
--- a/lib/screens/realms.dart
+++ b/lib/screens/realms.dart
@ -11,7 +11,6 @@ import 'package:solian/theme.dart';
 import 'package:solian/widgets/account/signin_required_overlay.dart';
 import 'package:solian/widgets/app_bar_title.dart';
 import 'package:solian/widgets/current_state_action.dart';
-import 'package:solian/widgets/drawer_button.dart' as drawer;

 class RealmListScreen extends StatefulWidget {
  const RealmListScreen({super.key});
@ -80,7 +79,6 @@ class _RealmListScreenState extends State<RealmListScreen> {
                  title: AppBarTitle('realm'.tr),
                  centerTitle: false,
                  floating: true,
-                  leading: const drawer.DrawerButton(),
                  toolbarHeight: SolianTheme.toolbarHeight(context),
                  actions: [
                    const BackgroundStateWidget(),
--- a/lib/screens/realms/realm_organize.dart
+++ b/lib/screens/realms/realm_organize.dart
@ -7,7 +7,6 @@ import 'package:solian/providers/auth.dart';
 import 'package:solian/router.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
-import 'package:solian/widgets/prev_page.dart';
 import 'package:uuid/uuid.dart';

 class RealmOrganizeArguments {
@ -102,7 +101,6 @@ class _RealmOrganizeScreenState extends State<RealmOrganizeScreen> {
          title: AppBarTitle('realmOrganizing'.tr),
          centerTitle: false,
          toolbarHeight: SolianTheme.toolbarHeight(context),
-          leading: const PrevPageButton(),
          actions: [
            TextButton(
              onPressed: _isBusy ? null : () => applyRealm(),
--- a/lib/shells/basic_shell.dart
+++ b/lib/shells/basic_shell.dart
@ -1,10 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:go_router/go_router.dart';
-import 'package:solian/router.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
-import 'package:solian/widgets/prev_page.dart';
 import 'package:solian/widgets/sidebar/sidebar_placeholder.dart';

 class BasicShell extends StatelessWidget {
@ -42,16 +40,12 @@ class BasicShell extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
-    final canPop = AppRouter.instance.canPop();
-
    return Scaffold(
      appBar: showAppBar
          ? AppBar(
              title: AppBarTitle(state.topRoute?.name?.tr ?? 'page'.tr),
              centerTitle: false,
              toolbarHeight: SolianTheme.toolbarHeight(context),
-              leading: canPop ? const PrevPageButton() : null,
-              automaticallyImplyLeading: false,
            )
          : null,
      body: SolianTheme.isLargeScreen(context)
--- a/lib/shells/centered_shell.dart
+++ b/lib/shells/centered_shell.dart
@ -1,10 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:go_router/go_router.dart';
-import 'package:solian/router.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
-import 'package:solian/widgets/prev_page.dart';

 class CenteredShell extends StatelessWidget {
  final bool showAppBar;
@ -20,16 +18,12 @@ class CenteredShell extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
-    final canPop = AppRouter.instance.canPop();
-
    return Scaffold(
      appBar: showAppBar
          ? AppBar(
              title: AppBarTitle(state.topRoute?.name?.tr ?? 'page'.tr),
              centerTitle: false,
              toolbarHeight: SolianTheme.toolbarHeight(context),
-              leading: canPop ? const PrevPageButton() : null,
-              automaticallyImplyLeading: false,
            )
          : null,
      body: Center(
--- a/lib/shells/root_shell.dart
+++ b/lib/shells/root_shell.dart
@ -2,7 +2,6 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/navigation/app_navigation_drawer.dart';
-import 'package:solian/widgets/navigation/app_navigation_rail.dart';

 final GlobalKey<ScaffoldState> rootScaffoldKey = GlobalKey<ScaffoldState>();

@ -32,14 +31,16 @@ class RootShell extends StatelessWidget {

    return Scaffold(
      key: rootScaffoldKey,
-      drawer: AppNavigationDrawer(
+      drawer: SolianTheme.isLargeScreen(context)
+          ? null
+          : AppNavigationDrawer(
              key: const ValueKey('navigation-drawer'),
              routeName: routeName,
            ),
      body: SolianTheme.isLargeScreen(context)
          ? Row(
              children: [
-                if (showNavigation) const AppNavigationRail(),
+                if (showNavigation) AppNavigationDrawer(routeName: routeName),
                if (showNavigation)
                  const VerticalDivider(thickness: 0.3, width: 1),
                Expanded(child: child),
--- a/lib/shells/title_shell.dart
+++ b/lib/shells/title_shell.dart
@ -1,11 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:go_router/go_router.dart';
-import 'package:solian/router.dart';
 import 'package:solian/theme.dart';
 import 'package:solian/widgets/app_bar_title.dart';
-import 'package:solian/widgets/prev_page.dart' as prev;
-import 'package:solian/widgets/drawer_button.dart' as drawer;

 class TitleShell extends StatelessWidget {
  final bool showAppBar;
@ -21,18 +18,12 @@ class TitleShell extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
-    final canPop = AppRouter.instance.canPop();
-
    return Scaffold(
      appBar: showAppBar
          ? AppBar(
              title: AppBarTitle(state.topRoute?.name?.tr ?? 'page'.tr),
              centerTitle: false,
              toolbarHeight: SolianTheme.toolbarHeight(context),
-              leading: canPop
-                  ? const prev.PrevPageButton()
-                  : const drawer.DrawerButton(),
-              automaticallyImplyLeading: false,
            )
          : null,
      body: child,
--- a/lib/translations/en_us.dart
+++ b/lib/translations/en_us.dart
@ -5,6 +5,7 @@ const messagesEnglish = {
  'next': 'Next',
  'reset': 'Reset',
  'page': 'Page',
+  'home': 'Home',
  'draft': 'Draft',
  'draftSave': 'Save',
  'draftBox': 'Draft Box',
--- a/lib/translations/zh_cn.dart
+++ b/lib/translations/zh_cn.dart
@ -2,6 +2,7 @@ const simplifiedChineseMessages = {
  'done': '完成',
  'hide': '隐藏',
  'okay': '确认',
+  'home': '首页',
  'next': '下一步',
  'reset': '重置',
  'cancel': '取消',
--- a/lib/widgets/articles/article_list.dart
+++ b/lib/widgets/articles/article_list.dart
@ -5,7 +5,7 @@ import 'package:solian/models/articles.dart';
 import 'package:solian/router.dart';
 import 'package:solian/widgets/articles/article_action.dart';
 import 'package:solian/widgets/articles/article_item.dart';
-import 'package:solian/widgets/centered_container.dart';
+import 'package:solian/widgets/sized_container.dart';

 class ArticleListWidget extends StatelessWidget {
  final bool isShowEmbed;
--- a/lib/widgets/drawer_button.dart
+++ b/lib/widgets/drawer_button.dart
@ -1,19 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:solian/shells/root_shell.dart';
-
-class DrawerButton extends StatelessWidget {
-  const DrawerButton({super.key});
-
-  void openDrawer() {
-    rootScaffoldKey.currentState!.openDrawer();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return IconButton(
-      icon: const Icon(Icons.menu),
-      tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip,
-      onPressed: openDrawer,
-    );
-  }
-}
--- a/lib/widgets/feed/feed_list.dart
+++ b/lib/widgets/feed/feed_list.dart
@ -4,7 +4,7 @@ import 'package:solian/models/articles.dart';
 import 'package:solian/models/feed.dart';
 import 'package:solian/models/post.dart';
 import 'package:solian/widgets/articles/article_list.dart';
-import 'package:solian/widgets/centered_container.dart';
+import 'package:solian/widgets/sized_container.dart';
 import 'package:solian/widgets/posts/post_list.dart';

 class FeedListWidget extends StatelessWidget {
@ -28,7 +28,7 @@ class FeedListWidget extends StatelessWidget {
      pagingController: controller,
      builderDelegate: PagedChildBuilderDelegate<FeedRecord>(
        itemBuilder: (context, item, index) {
-          return CenteredContainer(
+          return SizedContainer(
            child: Builder(
              builder: (context) {
                switch (item.type) {
--- a/lib/widgets/navigation/app_navigation.dart
+++ b/lib/widgets/navigation/app_navigation.dart
@ -4,9 +4,9 @@ import 'package:get/utils.dart';
 abstract class AppNavigation {
  static List<AppNavigationDestination> destinations = [
    AppNavigationDestination(
-      icon: const Icon(Icons.feed),
-      label: 'feed'.tr,
-      page: 'feed',
+      icon: const Icon(Icons.home),
+      label: 'home'.tr,
+      page: 'home',
    ),
    AppNavigationDestination(
      icon: const Icon(Icons.forum),
@ -18,11 +18,6 @@ abstract class AppNavigation {
      label: 'realms'.tr,
      page: 'realms',
    ),
-    AppNavigationDestination(
-      icon: const Icon(Icons.account_circle),
-      label: 'account'.tr,
-      page: 'account',
-    ),
  ];

  static List<String> get destinationPages =>
--- a/lib/widgets/navigation/app_navigation_drawer.dart
+++ b/lib/widgets/navigation/app_navigation_drawer.dart
@ -20,7 +20,7 @@ class AppNavigationDrawer extends StatefulWidget {
 }

 class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
-  int _selectedIndex = 0;
+  int? _selectedIndex = 0;
  AccountStatus? _accountStatus;

  void getStatus() async {
@ -40,7 +40,11 @@ class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
    final nameList = AppNavigation.destinations.map((x) => x.page).toList();
    final idx = nameList.indexOf(widget.routeName!);

-    _selectedIndex = idx != -1 ? idx : 0;
+    _selectedIndex = idx != -1 ? idx : null;
+  }
+
+  void closeDrawer() {
+    rootScaffoldKey.currentState!.closeDrawer();
  }

  @override
@ -65,7 +69,7 @@ class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
      onDestinationSelected: (idx) {
        setState(() => _selectedIndex = idx);
        AppRouter.instance.goNamed(AppNavigation.destinations[idx].page);
-        rootScaffoldKey.currentState!.closeDrawer();
+        closeDrawer();
      },
      children: [
        FutureBuilder(
@ -75,9 +79,7 @@ class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
              return const SizedBox();
            }

-            return Column(
-              children: [
-                ListTile(
+            return ListTile(
              contentPadding: const EdgeInsets.symmetric(horizontal: 24),
              title: Text(snapshot.data!.body['nick']),
              subtitle: Builder(
@ -110,7 +112,9 @@ class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
                  ),
                );
              }),
-                  onTap: () {
+              trailing: IconButton(
+                icon: const Icon(Icons.face_retouching_natural),
+                onPressed: () {
                  showModalBottomSheet(
                    useRootNavigator: true,
                    context: context,
@ -122,20 +126,27 @@ class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
                  });
                },
              ),
-                const Divider(thickness: 0.3, height: 1).paddingOnly(
-                  bottom: 16,
-                  top: 8,
-                ),
-              ],
-            );
+              onTap: () {
+                AppRouter.instance.goNamed('account');
+                closeDrawer();
              },
+            ).paddingOnly(top: 8);
+          },
+        ),
+        const Divider(thickness: 0.3, height: 1).paddingOnly(
+          bottom: 12,
+          top: 8,
        ),
        ...AppNavigation.destinations.map(
          (e) => NavigationDrawerDestination(
            icon: e.icon,
            label: Text(e.label),
          ),
-        )
+        ),
+        const Divider(thickness: 0.3, height: 1).paddingOnly(
+          top: 12,
+          bottom: 8,
+        ),
      ],
    );
  }
--- a/lib/widgets/navigation/app_navigation_rail.dart
+++ b/lib/widgets/navigation/app_navigation_rail.dart
@ -1,36 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:solian/router.dart';
-import 'package:solian/widgets/navigation/app_navigation.dart';
-
-class AppNavigationRail extends StatefulWidget {
-  const AppNavigationRail({super.key});
-
-  @override
-  State<AppNavigationRail> createState() => _AppNavigationRailState();
-}
-
-class _AppNavigationRailState extends State<AppNavigationRail> {
-  int _selectedIndex = 0;
-
-  @override
-  Widget build(BuildContext context) {
-    return NavigationRail(
-      destinations: AppNavigation.destinations
-          .map(
-            (e) => NavigationRailDestination(
-              icon: e.icon,
-              label: Text(e.label),
-            ),
-          )
-          .toList(),
-      groupAlignment: 0,
-      labelType: NavigationRailLabelType.all,
-      selectedIndex: _selectedIndex,
-      onDestinationSelected: (idx) {
-        setState(() => _selectedIndex = idx);
-        AppRouter.instance
-            .pushReplacementNamed(AppNavigation.destinations[idx].page);
-      },
-    );
-  }
-}
--- a/lib/widgets/posts/post_list.dart
+++ b/lib/widgets/posts/post_list.dart
@ -3,7 +3,7 @@ import 'package:get/get.dart';
 import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
 import 'package:solian/models/post.dart';
 import 'package:solian/router.dart';
-import 'package:solian/widgets/centered_container.dart';
+import 'package:solian/widgets/sized_container.dart';
 import 'package:solian/widgets/posts/post_action.dart';
 import 'package:solian/widgets/posts/post_item.dart';

--- a/lib/widgets/prev_page.dart
+++ b/lib/widgets/prev_page.dart
@ -1,19 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:solian/router.dart';
-
-class PrevPageButton extends StatelessWidget {
-  const PrevPageButton({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return IconButton(
-      icon: const Icon(Icons.arrow_back),
-      tooltip: MaterialLocalizations.of(context).backButtonTooltip,
-      onPressed: () {
-        if (AppRouter.instance.canPop()) {
-          AppRouter.instance.pop();
-        }
-      },
-    );
-  }
-}
--- a/lib/widgets/centered_container.dart
+++ b/lib/widgets/centered_container.dart
@ -1,5 +1,27 @@
 import 'package:flutter/material.dart';

+class SizedContainer extends StatelessWidget {
+  final Widget child;
+  final double maxWidth;
+
+  const SizedContainer({
+    super.key,
+    required this.child,
+    this.maxWidth = 720,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Align(
+      alignment: Alignment.centerLeft,
+      child: Container(
+        constraints: BoxConstraints(maxWidth: maxWidth),
+        child: child,
+      ),
+    );
+  }
+}
+
 class CenteredContainer extends StatelessWidget {
  final Widget child;
  final double maxWidth;