⚡ Optimize image cache size

assets/translations/en-US.json

@@ -14,6 +14,7 @@
   "screenAccountPublisherNew": "New Publisher",
   "screenAccountPublisherEdit": "Edit Publisher",
   "screenAccountProfileEdit": "Edit Profile",
+  "screenSettings": "Settings",
   "dialogOkay": "Okay",
   "dialogCancel": "Cancel",
   "dialogConfirm": "Confirm",
@@ -36,6 +37,9 @@
   "report": "Report",
   "repost": "Repost",
   "reply": "Reply",
+  "untitled": "Untitled",
+  "postDetail": "Post detail",
+  "postNoun": "Post",
   "fieldUsername": "Username",
   "fieldNickname": "Nickname",
   "fieldEmail": "Email address",
@@ -80,5 +84,26 @@
   "postPublish": "Publish",
   "postEditingNotice": "You're about to editing a post that posted {}.",
   "postReplyingNotice": "You're about to reply to a post that posted {}.",
-  "postRepostingNotice": "You're about to repost a post that posted {}."
+  "postRepostingNotice": "You're about to repost a post that posted {}.",
+  "postReact": "React",
+  "postComments": {
+    "zero": "Comment",
+    "one": "{} comment",
+    "other": "{} comments"
+  },
+  "settingsAppearance": "Appearance",
+  "settingsBackgroundImage": "Background Image",
+  "settingsBackgroundImageDescription": "Set the background image that will be applied globally.",
+  "settingsBackgroundImageClear": "Clear Existing Background Image",
+  "settingsBackgroundImageClearDescription": "Reset the background image to blank.",
+  "settingsThemeMaterial3": "Use Material You Design",
+  "settingsThemeMaterial3Description": "Set the application theme to Material 3 Design.",
+  "settingsNetwork": "Network",
+  "settingsNetworkServer": "HyperNet Server",
+  "settingsNetworkServerDescription": "Set the HyperNet server address, choose ours or build your own.",
+  "settingsNetworkServerReset": "Reset to Official Server",
+  "settingsNetworkServerResetDescription": "Reset to the official server address of Solar Network.",
+  "settingsNetworkServerPreset": "Present HyperNet Server",
+  "settingsNetworkServerPresetDescription": "You can choose one of our preset HyperNet server addresses from the list on the right.",
+  "settingsNetworkServerSaved": "Server address saved."
 }

assets/translations/zh-CN.json

@@ -14,6 +14,7 @@
   "screenAccountPublisherNew": "新建发布者",
   "screenAccountPublisherEdit": "编辑发布者",
   "screenAccountProfileEdit": "编辑资料",
+  "screenSettings": "设置",
   "dialogOkay": "好的",
   "dialogCancel": "取消",
   "dialogConfirm": "确认",
@@ -36,6 +37,9 @@
   "report": "检举",
   "repost": "转帖",
   "reply": "回贴",
+  "untitled": "无题",
+  "postDetail": "帖子详情",
+  "postNoun": "帖子",
   "fieldUsername": "用户名",
   "fieldNickname": "显示名",
   "fieldEmail": "电子邮箱地址",
@@ -80,5 +84,26 @@
   "postPublish": "发布",
   "postEditingNotice": "你正在修改由 {} 发布的帖子。",
   "postReplyingNotice": "你正在回复由 {} 发布的帖子。",
-  "postRepostingNotice": "你正在转发由 {} 发布的帖子。"
+  "postRepostingNotice": "你正在转发由 {} 发布的帖子。",
+  "postReact": "反应",
+  "postComments": {
+    "zero": "评论",
+    "one": "{} 条评论",
+    "other": "{} 条评论"
+  },
+  "settingsAppearance": "外观",
+  "settingsBackgroundImage": "背景图片",
+  "settingsBackgroundImageDescription": "设置应用全局生效的的背景图片。",
+  "settingsBackgroundImageClear": "清除现存背景图",
+  "settingsBackgroundImageClearDescription": "将应用背景图重置为空白。",
+  "settingsThemeMaterial3": "使用 Material You 设计范式",
+  "settingsThemeMaterial3Description": "将应用主题设置为 Material 3 设计范式的主题。",
+  "settingsNetwork": "网络",
+  "settingsNetworkServer": "HyperNet 服务器",
+  "settingsNetworkServerDescription": "设置 HyperNet 服务器地址，选择我们提供的，或者自己搭建。",
+  "settingsNetworkServerReset": "重设为官方服务器",
+  "settingsNetworkServerResetDescription": "重设为 Solar Network 的服务器地址。",
+  "settingsNetworkServerPreset": "预设的 HyperNet 服务器",
+  "settingsNetworkServerPresetDescription": "你可以在旁边的列表中选择我们提供的预设 HyperNet 服务器地址。",
+  "settingsNetworkServerSaved": "服务器地址已保存。"
 }

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:croppy/croppy.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:easy_localization_loader/easy_localization_loader.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:relative_time/relative_time.dart';
@@ -15,6 +16,10 @@ void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await EasyLocalization.ensureInitialized();
 
+  if (!kReleaseMode) {
+    debugInvertOversizedImages = true;
+  }
+
   runApp(const SolianApp());
 }
 
@@ -37,25 +42,7 @@ class SolianApp extends StatelessWidget {
             ChangeNotifierProvider(create: (ctx) => UserProvider(ctx)),
             ChangeNotifierProvider(create: (_) => ThemeProvider()),
           ],
-          child: Builder(builder: (context) {
-            // Initialize some providers
-            context.read<UserProvider>();
-
-            final th = context.watch<ThemeProvider>();
-
-            return MaterialApp.router(
-              theme: th.theme.light,
-              darkTheme: th.theme.dark,
-              locale: context.locale,
-              supportedLocales: context.supportedLocales,
-              localizationsDelegates: [
-                CroppyLocalizations.delegate,
-                RelativeTimeLocalizations.delegate,
-                ...context.localizationDelegates,
-              ],
-              routerConfig: appRouter,
-            );
-          }),
+          child: AppMainContent(),
         ),
       ),
       breakpoints: [
@@ -66,3 +53,27 @@ class SolianApp extends StatelessWidget {
     );
   }
 }
+
+class AppMainContent extends StatelessWidget {
+  const AppMainContent({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    context.read<UserProvider>();
+
+    final th = context.watch<ThemeProvider>();
+
+    return MaterialApp.router(
+      theme: th.theme?.light,
+      darkTheme: th.theme?.dark,
+      locale: context.locale,
+      supportedLocales: context.supportedLocales,
+      localizationsDelegates: [
+        CroppyLocalizations.delegate,
+        RelativeTimeLocalizations.delegate,
+        ...context.localizationDelegates,
+      ],
+      routerConfig: appRouter,
+    );
+  }
+}

lib/providers/sn_network.dart

@@ -4,25 +4,30 @@ import 'dart:developer';
 import 'package:dio/dio.dart';
 import 'package:dio_smart_retry/dio_smart_retry.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import 'package:surface/providers/adapters/sn_network_universal.dart';
 
-const kUseLocalNetwork = true;
-
 const kAtkStoreKey = 'nex_user_atk';
 const kRtkStoreKey = 'nex_user_rtk';
 
+const kNetworkServerDefault = 'https://api.sn-next.solsynth.dev';
+const kNetworkServerStoreKey = 'app_server_url';
+
+const kNetworkServerDirectory = [
+  ('SN Preview', 'https://api.sn-next.solsynth.dev'),
+  ('SN Stable', 'https://api.sn.solsynth.dev'),
+  ('Local', 'http://localhost:8001'),
+];
+
 class SnNetworkProvider {
   late Dio client;
 
+  late final SharedPreferences _prefs;
   late final FlutterSecureStorage _storage = FlutterSecureStorage();
 
   SnNetworkProvider() {
     client = Dio();
 
-    client.options.baseUrl = kUseLocalNetwork
-        ? 'http://localhost:8001'
-        : 'https://api.sn.solsynth.dev';
-
     client.interceptors.add(RetryInterceptor(
       dio: client,
       retries: 3,
@@ -86,6 +91,12 @@ class SnNetworkProvider {
     );
 
     client = addClientAdapter(client);
+
+    SharedPreferences.getInstance().then((prefs) {
+      _prefs = prefs;
+      client.options.baseUrl =
+          _prefs.getString(kNetworkServerStoreKey) ?? kNetworkServerDefault;
+    });
   }
 
   String getAttachmentUrl(String ky) {
@@ -112,9 +123,7 @@ class SnNetworkProvider {
     if (rtk == null) return null;
 
     final dio = Dio();
-    dio.options.baseUrl = kUseLocalNetwork
-        ? 'http://localhost:8001'
-        : 'https://api.sn.solsynth.dev';
+    dio.options.baseUrl = client.options.baseUrl;
 
     final resp = await dio.post('/cgi/id/auth/token', data: {
       'grant_type': 'refresh_token',
@@ -127,4 +136,8 @@ class SnNetworkProvider {
 
     return atk;
   }
+
+  void setBaseUrl(String url) {
+    client.options.baseUrl = url;
+  }
 }

lib/providers/theme.dart

@@ -2,9 +2,19 @@ import 'package:flutter/foundation.dart';
 import 'package:surface/theme.dart';
 
 class ThemeProvider extends ChangeNotifier {
-  late ThemeSet theme;
+  ThemeSet? theme;
 
   ThemeProvider() {
-    theme = createAppThemeSet();
+    createAppThemeSet().then((value) {
+      theme = value;
+      notifyListeners();
+    });
+  }
+
+  void reloadTheme({bool? useMaterial3}) {
+    createAppThemeSet().then((value) {
+      theme = value;
+      notifyListeners();
+    });
   }
 }

lib/router.dart

@@ -8,7 +8,10 @@ import 'package:surface/screens/auth/login.dart';
 import 'package:surface/screens/auth/register.dart';
 import 'package:surface/screens/explore.dart';
 import 'package:surface/screens/home.dart';
+import 'package:surface/screens/post/post_detail.dart';
 import 'package:surface/screens/post/post_editor.dart';
+import 'package:surface/screens/settings.dart';
+import 'package:surface/types/post.dart';
 import 'package:surface/widgets/navigation/app_scaffold.dart';
 
 final appRouter = GoRouter(
@@ -57,6 +60,14 @@ final appRouter = GoRouter(
             ),
           ),
         ),
+        GoRoute(
+          path: '/post/:slug',
+          name: 'postDetail',
+          builder: (context, state) => PostDetailScreen(
+            slug: state.pathParameters['slug']!,
+            preload: state.extra as SnPost?,
+          ),
+        )
       ],
     ),
     ShellRoute(
@@ -99,5 +110,18 @@ final appRouter = GoRouter(
         ),
       ],
     ),
+    ShellRoute(
+      builder: (context, state, child) => AppScaffold(
+        body: child,
+        autoImplyAppBar: true,
+      ),
+      routes: [
+        GoRoute(
+          path: '/settings',
+          name: 'settings',
+          builder: (context, state) => const SettingsScreen(),
+        ),
+      ],
+    ),
   ],
 );

lib/screens/account.dart

@@ -20,6 +20,14 @@ class AccountScreen extends StatelessWidget {
     return AppScaffold(
       appBar: AppBar(
         title: Text("screenAccount").tr(),
+        actions: [
+          IconButton(
+            icon: const Icon(Symbols.settings, fill: 1),
+            onPressed: () {
+              GoRouter.of(context).pushNamed('settings');
+            },
+          ),
+        ],
       ),
       body: SingleChildScrollView(
         child: ua.isAuthorized

lib/screens/explore.dart

@@ -171,7 +171,16 @@ class _ExploreScreenState extends State<ExploreScreen> {
               hasReachedMax: _postCount != null && _posts.length >= _postCount!,
               onFetchData: _fetchPosts,
               itemBuilder: (context, idx) {
-                return PostItem(data: _posts[idx]);
+                return GestureDetector(
+                  child: PostItem(data: _posts[idx]),
+                  onTap: () {
+                    GoRouter.of(context).pushNamed(
+                      'postDetail',
+                      pathParameters: {'slug': _posts[idx].id.toString()},
+                      extra: _posts[idx],
+                    );
+                  },
+                );
               },
               separatorBuilder: (context, index) => const Divider(),
             )

lib/screens/post/post_detail.dart

@@ -0,0 +1,102 @@
+import 'dart:math' as math;
+
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:provider/provider.dart';
+import 'package:styled_widget/styled_widget.dart';
+import 'package:surface/providers/sn_attachment.dart';
+import 'package:surface/providers/sn_network.dart';
+import 'package:surface/types/post.dart';
+import 'package:surface/widgets/dialog.dart';
+import 'package:surface/widgets/loading_indicator.dart';
+import 'package:surface/widgets/navigation/app_scaffold.dart';
+import 'package:surface/widgets/post/post_item.dart';
+
+class PostDetailScreen extends StatefulWidget {
+  final String slug;
+  final SnPost? preload;
+  const PostDetailScreen({
+    super.key,
+    required this.slug,
+    this.preload,
+  });
+
+  @override
+  State<PostDetailScreen> createState() => _PostDetailScreenState();
+}
+
+class _PostDetailScreenState extends State<PostDetailScreen> {
+  bool _isBusy = false;
+
+  SnPost? _data;
+
+  void _fetchPost() async {
+    setState(() => _isBusy = true);
+
+    try {
+      final sn = context.read<SnNetworkProvider>();
+      final attach = context.read<SnAttachmentProvider>();
+      final resp = await sn.client.get('/cgi/co/posts/${widget.slug}');
+      if (!mounted) return;
+      final attachments = await attach.getMultiple(
+        resp.data['body']['attachments']?.cast<String>() ?? [],
+      );
+      if (!mounted) return;
+      setState(() {
+        _data = SnPost.fromJson(resp.data).copyWith(
+          preload: SnPostPreload(
+            attachments: attachments,
+          ),
+        );
+      });
+    } catch (err) {
+      context.showErrorDialog(err);
+    } finally {
+      setState(() => _isBusy = false);
+    }
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    if (widget.preload != null) {
+      _data = widget.preload;
+    }
+    _fetchPost();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AppScaffold(
+      appBar: AppBar(
+        leading: BackButton(
+          onPressed: () {
+            if (GoRouter.of(context).canPop()) {
+              Navigator.pop(context);
+            }
+            GoRouter.of(context).replaceNamed('explore');
+          },
+        ),
+        flexibleSpace: Column(
+          children: [
+            Text(_data?.body['title'] ?? 'postNoun'.tr())
+                .textStyle(Theme.of(context).textTheme.titleLarge!)
+                .textColor(Colors.white),
+            Text('postDetail')
+                .tr()
+                .textColor(Colors.white.withAlpha((255 * 0.9).round())),
+          ],
+        ).padding(top: math.max(MediaQuery.of(context).padding.top, 8)),
+      ),
+      body: SingleChildScrollView(
+        child: Column(
+          children: [
+            LoadingIndicator(isActive: _isBusy),
+            if (_data != null) PostItem(data: _data!),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/post/post_editor.dart

@@ -1,3 +1,6 @@
+import 'dart:math' as math;
+
+import 'package:collection/collection.dart';
 import 'package:dio/dio.dart';
 import 'package:dropdown_button2/dropdown_button2.dart';
 import 'package:easy_localization/easy_localization.dart';
@@ -275,14 +278,14 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
         ),
         flexibleSpace: Column(
           children: [
-            Text(_title ?? 'Untitled')
+            Text(_title ?? 'untitled'.tr())
                 .textStyle(Theme.of(context).textTheme.titleLarge!)
                 .textColor(Colors.white),
             Text(_kTitleMap[widget.mode]!)
                 .tr()
                 .textColor(Colors.white.withAlpha((255 * 0.9).round())),
           ],
-        ).padding(top: MediaQuery.of(context).padding.top),
+        ).padding(top: math.max(MediaQuery.of(context).padding.top, 8)),
         actions: [
           IconButton(
             icon: const Icon(Symbols.tune),
@@ -468,8 +471,17 @@ class _PostEditorScreenState extends State<PostEditorScreen> {
                     onTapOutside: (_) =>
                         FocusManager.instance.primaryFocus?.unfocus(),
                   )
-                ].expand((ele) => [ele, const Gap(8)]).toList()
-                  ..removeLast(),
+                ]
+                    .expandIndexed(
+                      (idx, ele) => [
+                        if (idx != 0 ||
+                            ![_editingOg, _replyingTo, _repostingTo]
+                                .any((x) => x != null))
+                          const Gap(8),
+                        ele,
+                      ],
+                    )
+                    .toList(),
               ),
             ),
           ),

lib/screens/settings.dart

@@ -0,0 +1,241 @@
+import 'dart:io';
+
+import 'package:dropdown_button2/dropdown_button2.dart';
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:gap/gap.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:styled_widget/styled_widget.dart';
+import 'package:surface/providers/sn_network.dart';
+import 'package:surface/providers/theme.dart';
+import 'package:surface/theme.dart';
+import 'package:surface/widgets/dialog.dart';
+import 'package:surface/widgets/navigation/app_scaffold.dart';
+
+class SettingsScreen extends StatefulWidget {
+  const SettingsScreen({super.key});
+
+  @override
+  State<SettingsScreen> createState() => _SettingsScreenState();
+}
+
+class _SettingsScreenState extends State<SettingsScreen> {
+  SharedPreferences? _prefs;
+  String _docBasepath = '/';
+
+  final TextEditingController _serverUrlController = TextEditingController();
+
+  @override
+  void initState() {
+    super.initState();
+    getApplicationDocumentsDirectory().then((dir) {
+      _docBasepath = dir.path;
+      if (mounted) {
+        setState(() {});
+      }
+    });
+    SharedPreferences.getInstance().then((prefs) {
+      setState(() {
+        _prefs = prefs;
+        _serverUrlController.text =
+            prefs.getString(kNetworkServerStoreKey) ?? kNetworkServerDefault;
+      });
+    });
+  }
+
+  @override
+  void dispose() {
+    _serverUrlController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final sn = context.read<SnNetworkProvider>();
+
+    return AppScaffold(
+      body: SingleChildScrollView(
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text('settingsAppearance')
+                    .bold()
+                    .fontSize(17)
+                    .tr()
+                    .padding(horizontal: 20, bottom: 4),
+                if (!kIsWeb)
+                  ListTile(
+                    title: Text('settingsBackgroundImage').tr(),
+                    subtitle: Text('settingsBackgroundImageDescription').tr(),
+                    contentPadding: const EdgeInsets.symmetric(horizontal: 24),
+                    leading: const Icon(Symbols.image),
+                    trailing: const Icon(Symbols.chevron_right),
+                    onTap: () async {
+                      final image = await ImagePicker()
+                          .pickImage(source: ImageSource.gallery);
+                      if (image == null) return;
+
+                      await File(image.path)
+                          .copy('$_docBasepath/app_background_image');
+
+                      setState(() {});
+                    },
+                  ),
+                if (!kIsWeb)
+                  FutureBuilder<bool>(
+                      future:
+                          File('$_docBasepath/app_background_image').exists(),
+                      builder: (context, snapshot) {
+                        if (!snapshot.hasData || !snapshot.data!) {
+                          return const SizedBox.shrink();
+                        }
+
+                        return ListTile(
+                          title: Text('settingsBackgroundImageClear').tr(),
+                          subtitle:
+                              Text('settingsBackgroundImageClearDescription')
+                                  .tr(),
+                          contentPadding:
+                              const EdgeInsets.symmetric(horizontal: 24),
+                          leading: const Icon(Symbols.texture),
+                          trailing: const Icon(Symbols.chevron_right),
+                          onTap: () {
+                            File('$_docBasepath/app_background_image')
+                                .deleteSync();
+                            setState(() {});
+                          },
+                        );
+                      }),
+                if (_prefs != null)
+                  CheckboxListTile(
+                    title: Text('settingsThemeMaterial3').tr(),
+                    subtitle: Text('settingsThemeMaterial3Description').tr(),
+                    contentPadding: const EdgeInsets.only(left: 24, right: 17),
+                    secondary: const Icon(Symbols.new_releases),
+                    value: _prefs!.getBool(kMaterialYouToggleStoreKey) ?? false,
+                    onChanged: (value) {
+                      setState(() {
+                        _prefs!.setBool(
+                          kMaterialYouToggleStoreKey,
+                          value ?? false,
+                        );
+                      });
+                      final th = context.watch<ThemeProvider>();
+                      th.reloadTheme(useMaterial3: value ?? false);
+                    },
+                  ),
+              ],
+            ),
+            Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text('settingsNetwork')
+                    .bold()
+                    .fontSize(17)
+                    .tr()
+                    .padding(horizontal: 20, bottom: 4),
+                TextField(
+                  controller: _serverUrlController,
+                  decoration: InputDecoration(
+                    border: const OutlineInputBorder(),
+                    labelText: 'settingsNetworkServer'.tr(),
+                    helperText: 'settingsNetworkServerDescription'.tr(),
+                    prefixIcon: const Icon(Symbols.dns),
+                    suffixIcon: IconButton(
+                      icon: const Icon(Symbols.save),
+                      onPressed: () {
+                        sn.setBaseUrl(_serverUrlController.text);
+                        _prefs?.setString(
+                          kNetworkServerStoreKey,
+                          _serverUrlController.text,
+                        );
+                        context.showSnackbar('settingsNetworkServerSaved'.tr());
+                        setState(() {});
+                      },
+                    ),
+                  ),
+                  onTapOutside: (_) =>
+                      FocusManager.instance.primaryFocus?.unfocus(),
+                ).padding(horizontal: 16, top: 8, bottom: 4),
+                ListTile(
+                  title: Text('settingsNetworkServerPreset').tr(),
+                  subtitle: Text('settingsNetworkServerPresetDescription').tr(),
+                  contentPadding: const EdgeInsets.symmetric(horizontal: 24),
+                  leading: const Icon(Symbols.lists),
+                  trailing: DropdownButtonHideUnderline(
+                    child: DropdownButton2<String>(
+                      isExpanded: true,
+                      items: [
+                        ...kNetworkServerDirectory,
+                        if (!kNetworkServerDirectory
+                            .map((ele) => ele.$2)
+                            .contains(_serverUrlController.text))
+                          ('Custom', _serverUrlController.text),
+                      ]
+                          .map(
+                            (item) => DropdownMenuItem<String>(
+                              value: item.$2,
+                              child: Column(
+                                mainAxisSize: MainAxisSize.max,
+                                mainAxisAlignment: MainAxisAlignment.center,
+                                crossAxisAlignment: CrossAxisAlignment.start,
+                                children: [
+                                  Text(item.$1).fontSize(14),
+                                  Text(item.$2, overflow: TextOverflow.ellipsis)
+                                      .fontSize(11)
+                                ],
+                              ),
+                            ),
+                          )
+                          .toList(),
+                      value: _serverUrlController.text,
+                      onChanged: (String? value) {
+                        if (value == null) return;
+                        _serverUrlController.text = value;
+                        _prefs?.setString(kNetworkServerStoreKey, value);
+                        context.showSnackbar('settingsNetworkServerSaved'.tr());
+                        setState(() {});
+                      },
+                      buttonStyleData: const ButtonStyleData(
+                        padding: EdgeInsets.symmetric(
+                          horizontal: 16,
+                          vertical: 5,
+                        ),
+                        height: 40,
+                        width: 140,
+                      ),
+                      menuItemStyleData: const MenuItemStyleData(
+                        height: 60,
+                      ),
+                    ),
+                  ),
+                ),
+                ListTile(
+                  title: Text('settingsNetworkServerReset').tr(),
+                  subtitle: Text('settingsNetworkServerResetDescription').tr(),
+                  contentPadding: const EdgeInsets.symmetric(horizontal: 24),
+                  leading: const Icon(Symbols.reset_wrench),
+                  trailing: const Icon(Symbols.chevron_right),
+                  onTap: () {
+                    _serverUrlController.text = kNetworkServerDefault;
+                    _prefs?.remove(kNetworkServerStoreKey);
+                    context.showSnackbar('settingsNetworkServerSaved'.tr());
+                    setState(() {});
+                  },
+                ),
+              ],
+            ),
+          ].expand((ele) => [ele, const Gap(16)]).toList(),
+        ).padding(vertical: 20),
+      ),
+    );
+  }
+}

lib/theme.dart

@@ -1,4 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+const kMaterialYouToggleStoreKey = 'app_theme_material_you';
 
 class ThemeSet {
   ThemeData light;
@@ -7,21 +10,35 @@ class ThemeSet {
   ThemeSet({required this.light, required this.dark});
 }
 
-ThemeSet createAppThemeSet() {
+Future<ThemeSet> createAppThemeSet({bool? useMaterial3}) async {
   return ThemeSet(
-    light: createAppTheme(Brightness.light),
-    dark: createAppTheme(Brightness.dark),
+    light: await createAppTheme(Brightness.light, useMaterial3: useMaterial3),
+    dark: await createAppTheme(Brightness.dark, useMaterial3: useMaterial3),
   );
 }
 
-ThemeData createAppTheme(Brightness brightness) {
-  return ThemeData(
-    useMaterial3: false,
-    colorScheme: ColorScheme.fromSeed(
-      seedColor: Colors.indigo,
-      brightness: brightness,
-    ),
+Future<ThemeData> createAppTheme(
+  Brightness brightness, {
+  bool? useMaterial3,
+}) async {
+  final prefs = await SharedPreferences.getInstance();
+
+  final colorScheme = ColorScheme.fromSeed(
+    seedColor: Colors.indigo,
     brightness: brightness,
-    iconTheme: const IconThemeData(fill: 0, weight: 400, opticalSize: 20),
+  );
+
+  return ThemeData(
+    useMaterial3:
+        useMaterial3 ?? (prefs.getBool(kMaterialYouToggleStoreKey) ?? false),
+    colorScheme: colorScheme,
+    brightness: brightness,
+    iconTheme: IconThemeData(
+      fill: 0,
+      weight: 400,
+      opticalSize: 20,
+      color: colorScheme.onSurface,
+    ),
+    scaffoldBackgroundColor: Colors.transparent,
   );
 }

lib/widgets/attachment/attachment_item.dart

@@ -23,10 +23,14 @@ class AttachmentItem extends StatelessWidget {
       case 'image':
         return Hero(
           tag: 'attachment-${data.rid}-$heroTag',
-          child: UniversalImage(
-            sn.getAttachmentUrl(data.rid),
-            fit: BoxFit.cover,
-          ),
+          child: LayoutBuilder(builder: (context, constraints) {
+            return UniversalImage(
+              sn.getAttachmentUrl(data.rid),
+              fit: BoxFit.cover,
+              cacheHeight: constraints.maxHeight,
+              cacheWidth: constraints.maxWidth,
+            );
+          }),
         );
       default:
         return const Placeholder();

lib/widgets/navigation/app_background.dart

@@ -1,4 +1,8 @@
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:path_provider/path_provider.dart';
 
 class AppBackground extends StatelessWidget {
   final Widget child;
@@ -6,6 +10,52 @@ class AppBackground extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return ScaffoldMessenger(child: child);
+    final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
+
+    return ScaffoldMessenger(
+      child: FutureBuilder(
+        future:
+            kIsWeb ? Future.value(null) : getApplicationDocumentsDirectory(),
+        builder: (context, snapshot) {
+          if (snapshot.hasData) {
+            final path = '${snapshot.data!.path}/app_background_image';
+            final file = File(path);
+            if (file.existsSync()) {
+              return Container(
+                color: Theme.of(context).colorScheme.surface,
+                child: LayoutBuilder(
+                  builder: (context, constraints) {
+                    return Container(
+                      decoration: BoxDecoration(
+                        backgroundBlendMode: BlendMode.darken,
+                        color: Theme.of(context).colorScheme.surface,
+                        image: DecorationImage(
+                          opacity: 0.2,
+                          image: ResizeImage(
+                            FileImage(file),
+                            width: (constraints.maxWidth * devicePixelRatio)
+                                .round(),
+                            height: (constraints.maxHeight * devicePixelRatio)
+                                .round(),
+                            policy: ResizeImagePolicy.fit,
+                          ),
+                          fit: BoxFit.cover,
+                        ),
+                      ),
+                      child: child,
+                    );
+                  },
+                ),
+              );
+            }
+          }
+
+          return Material(
+            color: Theme.of(context).colorScheme.surface,
+            child: child,
+          );
+        },
+      ),
+    );
   }
 }

lib/widgets/post/post_item.dart

@@ -21,10 +21,59 @@ class PostItem extends StatelessWidget {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
-        _PostContentHeader(data: data),
+        _PostContentHeader(data: data).padding(horizontal: 12, vertical: 8),
         _PostContentBody(data: data.body).padding(horizontal: 16, bottom: 6),
         if (data.preload?.attachments?.isNotEmpty ?? true)
           AttachmentList(data: data.preload!.attachments!, bordered: true),
+        _PostBottomAction(data: data)
+            .padding(left: 20, right: 26, top: 8, bottom: 2),
+      ],
+    );
+  }
+}
+
+class _PostBottomAction extends StatelessWidget {
+  final SnPost data;
+  const _PostBottomAction({required this.data});
+
+  @override
+  Widget build(BuildContext context) {
+    final iconColor = Theme.of(context).colorScheme.onSurface.withAlpha(
+          (255 * 0.8).round(),
+        );
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      children: [
+        Row(
+          children: [
+            InkWell(
+              child: Row(
+                children: [
+                  Icon(Symbols.add_reaction, size: 20, color: iconColor),
+                  const Gap(8),
+                  Text('postReact').tr(),
+                ],
+              ),
+              onTap: () {},
+            ),
+            const Gap(16),
+            InkWell(
+              child: Row(
+                children: [
+                  Icon(Symbols.comment, size: 20, color: iconColor),
+                  const Gap(8),
+                  Text('postComments').plural(data.metric.replyCount),
+                ],
+              ),
+              onTap: () {},
+            ),
+          ].expand((ele) => [ele, const Gap(8)]).toList()
+            ..removeLast(),
+        ),
+        InkWell(
+          child: Icon(Symbols.share, size: 20, color: iconColor),
+          onTap: () {},
+        ),
       ],
     );
   }
@@ -139,7 +188,7 @@ class _PostContentHeader extends StatelessWidget {
           ],
         ),
       ],
-    ).padding(horizontal: 12, vertical: 8);
+    );
   }
 }
 

pubspec.lock

@@ -199,7 +199,7 @@ packages:
     source: hosted
     version: "4.10.1"
   collection:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: collection
       sha256: a1ace0a119f20aabc852d165077c036cd864315bd99b7eaa10a60100341941bf
@@ -987,7 +987,7 @@ packages:
     source: hosted
     version: "1.9.0"
   path_provider:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path_provider
       sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"

pubspec.yaml

@@ -71,6 +71,8 @@ dependencies:
   uuid: ^4.5.1
   photo_view: ^0.15.0
   shared_preferences: ^2.3.3
+  path_provider: ^2.1.5
+  collection: ^1.19.0
 
 dev_dependencies:
   flutter_test: