lib/core/constants/storage_keys.dart

@@ -39,4 +39,8 @@ class StorageKeys {
   // 公告
   static const String siteAnnouncementDismissedFingerprint =
       'site_announcement_dismissed_fingerprint';
+
+  // 版本更新
+  static const String updatePromptSkipUntil = 'update_prompt_skip_until';
+  static const String updatePromptSkipVersion = 'update_prompt_skip_version';
 }

lib/presentation/pages/settings/settings_page.dart

@@ -5,6 +5,7 @@ import 'package:url_launcher/url_launcher.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import '../../../data/models/user_model.dart';
 import '../../../data/models/user_setting_model.dart';
+import '../../../services/update_service.dart';
 import '../../../services/user_setting_service.dart';
 import '../../providers/auth_provider.dart';
 import '../../providers/user_setting_provider.dart';
@@ -154,11 +155,7 @@ class _SettingsPageState extends State<SettingsPage> {
                   title: const Text('应用名称'),
                   subtitle: const Text('公云存储'),
                 ),
-                ListTile(
-                  leading: const Icon(Icons.tag),
-                  title: const Text('版本号'),
-                  subtitle: Text(_appVersion.isEmpty ? '加载中...' : _appVersion),
-                ),
+                _buildVersionTile(),
                 ListTile(
                   leading: const Icon(Icons.copyright),
                   title: const Text('License'),
@@ -404,6 +401,22 @@ class _SettingsPageState extends State<SettingsPage> {
     );
   }
 
+  Widget _buildVersionTile() {
+    return AnimatedBuilder(
+      animation: UpdateService.instance,
+      builder: (context, _) {
+        return ListTile(
+          leading: const Icon(Icons.tag),
+          title: const Text('版本号'),
+          subtitle: Text(_appVersion.isEmpty ? '加载中...' : _appVersion),
+          trailing: UpdateService.instance.hasUpdate
+              ? const _BlinkingUpdateDot()
+              : null,
+        );
+      },
+    );
+  }
+
   Widget _buildLogoutButton(BuildContext context, AuthProvider auth) {
     return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 16),
@@ -628,6 +641,53 @@ class _SettingsPageState extends State<SettingsPage> {
   }
 }
 
+class _BlinkingUpdateDot extends StatefulWidget {
+  const _BlinkingUpdateDot();
+
+  @override
+  State<_BlinkingUpdateDot> createState() => _BlinkingUpdateDotState();
+}
+
+class _BlinkingUpdateDotState extends State<_BlinkingUpdateDot>
+    with SingleTickerProviderStateMixin {
+  late final AnimationController _controller;
+  late final Animation<double> _opacity;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 900),
+    )..repeat(reverse: true);
+    _opacity = Tween<double>(
+      begin: 0.3,
+      end: 1,
+    ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FadeTransition(
+      opacity: _opacity,
+      child: Container(
+        width: 10,
+        height: 10,
+        decoration: const BoxDecoration(
+          color: Colors.red,
+          shape: BoxShape.circle,
+        ),
+      ),
+    );
+  }
+}
+
 class _NetworkTestConsentText extends StatefulWidget {
   final VoidCallback onOpenPrivacy;
   final VoidCallback onOpenTerms;

lib/presentation/widgets/update_prompt.dart

@@ -1,5 +1,3 @@
-import 'dart:io';
-
 import 'package:flutter/material.dart';
 
 import '../../data/models/app_update_model.dart';
@@ -31,6 +29,8 @@ class _UpdatePromptState extends State<UpdatePrompt> {
 
     final update = await UpdateService.instance.checkForUpdate();
     if (update == null || !mounted) return;
+    final shouldShow = await UpdateService.instance.shouldShowPrompt(update);
+    if (!shouldShow || !mounted) return;
 
     _dialogVisible = true;
     try {
@@ -41,98 +41,55 @@ class _UpdatePromptState extends State<UpdatePrompt> {
   }
 
   Future<void> _showUpdateDialog(AppUpdateInfo update) async {
-    var downloading = false;
-    var progress = 0.0;
-    String? status;
-
     await showDialog<void>(
       context: context,
       barrierDismissible: false,
       builder: (dialogContext) {
-        return StatefulBuilder(
-          builder: (context, setDialogState) {
-            final canDownload =
-                update.downloadUrl != null &&
-                (Platform.isAndroid || Platform.isWindows);
+        Future<void> openDownloadsPage() async {
+          try {
+            await UpdateService.instance.openDownloadsPage();
+            if (dialogContext.mounted) Navigator.of(dialogContext).pop();
+          } catch (e) {
+            ToastHelper.failure('打开下载页面失败: $e');
+          }
+        }
 
-            Future<void> startUpdate() async {
-              if (downloading || !canDownload) return;
+        Future<void> skipPrompt() async {
+          await UpdateService.instance.skipPromptForFiveDays(update);
+          if (dialogContext.mounted) Navigator.of(dialogContext).pop();
+        }
 
-              setDialogState(() {
-                downloading = true;
-                progress = 0;
-                status = '正在下载更新...';
-              });
+        final releaseNotes = (update.description ?? '').trim();
 
-              try {
-                final file = await UpdateService.instance.downloadUpdate(
-                  update,
-                  onProgress: (received, total) {
-                    if (!mounted || total <= 0) return;
-                    setDialogState(() {
-                      progress = received / total;
-                    });
-                  },
-                );
-                if (file == null) return;
-
-                setDialogState(() {
-                  progress = 1;
-                  status = '下载完成，正在打开安装包...';
-                });
-                await UpdateService.instance.openInstaller(file);
-                if (dialogContext.mounted) Navigator.of(dialogContext).pop();
-              } catch (e) {
-                setDialogState(() {
-                  downloading = false;
-                  status = '下载或打开安装包失败';
-                });
-                ToastHelper.failure('更新失败: $e');
-              }
-            }
-
-            return AlertDialog(
-              title: Text('发现新版本 ${update.version}'),
-              content: ConstrainedBox(
-                constraints: const BoxConstraints(maxWidth: 420),
-                child: Column(
-                  mainAxisSize: MainAxisSize.min,
-                  crossAxisAlignment: CrossAxisAlignment.start,
-                  children: [
-                    Text(update.title),
-                    if ((update.description ?? '').isNotEmpty) ...[
-                      const SizedBox(height: 12),
-                      Text(
-                        update.description!,
-                        maxLines: 6,
-                        overflow: TextOverflow.ellipsis,
-                      ),
-                    ],
-                    if (downloading) ...[
-                      const SizedBox(height: 16),
-                      LinearProgressIndicator(
-                        value: progress == 0 ? null : progress,
-                      ),
-                      const SizedBox(height: 8),
-                      Text(status ?? ''),
-                    ],
-                  ],
-                ),
+        return AlertDialog(
+          title: Text('发现新版本 ${update.version}'),
+          content: ConstrainedBox(
+            constraints: const BoxConstraints(maxWidth: 420, maxHeight: 360),
+            child: SingleChildScrollView(
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text('新版本号：${update.version}'),
+                  const SizedBox(height: 12),
+                  Text(
+                    '版本日志',
+                    style: Theme.of(dialogContext).textTheme.titleSmall,
+                  ),
+                  const SizedBox(height: 6),
+                  Text(releaseNotes.isEmpty ? update.title : releaseNotes),
+                ],
               ),
-              actions: [
-                TextButton(
-                  onPressed: downloading
-                      ? null
-                      : () => Navigator.of(dialogContext).pop(),
-                  child: const Text('稍后'),
-                ),
-                FilledButton(
-                  onPressed: downloading ? null : startUpdate,
-                  child: const Text('立即更新'),
-                ),
-              ],
-            );
-          },
+            ),
+          ),
+          actions: [
+            TextButton(onPressed: skipPrompt, child: const Text('跳过')),
+            TextButton(
+              onPressed: () => Navigator.of(dialogContext).pop(),
+              child: const Text('取消'),
+            ),
+            FilledButton(onPressed: openDownloadsPage, child: const Text('更新')),
+          ],
         );
       },
     );

lib/services/update_service.dart

@@ -9,10 +9,12 @@ import 'package:path_provider/path_provider.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:xml/xml.dart';
 
+import '../core/constants/storage_keys.dart';
 import '../core/utils/app_logger.dart';
 import '../data/models/app_update_model.dart';
+import 'storage_service.dart';
 
-class UpdateService {
+class UpdateService extends ChangeNotifier {
   UpdateService._();
 
   static final UpdateService instance = UpdateService._();
@@ -23,6 +25,9 @@ class UpdateService {
   static final Uri releasesPageUrl = Uri.parse(
     'https://git.saont.net/gongyun/app/releases',
   );
+  static final Uri downloadsPageUrl = Uri.parse(
+    'https://www.gongyun.org/downloads.html',
+  );
 
   final Dio _dio = Dio(
     BaseOptions(
@@ -34,17 +39,24 @@ class UpdateService {
   );
 
   bool _checking = false;
+  AppUpdateInfo? _availableUpdate;
+
+  AppUpdateInfo? get availableUpdate => _availableUpdate;
+  bool get hasUpdate => _availableUpdate != null;
 
   Future<AppUpdateInfo?> checkForUpdate() async {
     if (_checking) return null;
-    if (!_supportsAutoDownload) return null;
 
     _checking = true;
     try {
       final current = await PackageInfo.fromPlatform();
       final latest = await _fetchLatestRelease(currentVersion: current.version);
-      if (latest == null) return null;
-      if (_compareVersions(latest.version, current.version) <= 0) return null;
+      if (latest == null ||
+          _compareVersions(latest.version, current.version) <= 0) {
+        _setAvailableUpdate(null);
+        return null;
+      }
+      _setAvailableUpdate(latest);
       return latest;
     } catch (e, stackTrace) {
       AppLogger.e('检查更新失败: $e\n$stackTrace');
@@ -54,6 +66,34 @@ class UpdateService {
     }
   }
 
+  Future<bool> shouldShowPrompt(AppUpdateInfo update) async {
+    final storage = StorageService.instance;
+    final skipVersion = await storage.getString(
+      StorageKeys.updatePromptSkipVersion,
+    );
+    final skipUntil = await storage.getInt(StorageKeys.updatePromptSkipUntil);
+    if (skipVersion != update.version || skipUntil == null) return true;
+
+    final now = DateTime.now().millisecondsSinceEpoch;
+    if (skipUntil > now) return false;
+
+    await storage.remove(StorageKeys.updatePromptSkipUntil);
+    await storage.remove(StorageKeys.updatePromptSkipVersion);
+    return true;
+  }
+
+  Future<void> skipPromptForFiveDays(AppUpdateInfo update) async {
+    final skipUntil = DateTime.now()
+        .add(const Duration(days: 5))
+        .millisecondsSinceEpoch;
+    final storage = StorageService.instance;
+    await storage.setString(
+      StorageKeys.updatePromptSkipVersion,
+      update.version,
+    );
+    await storage.setInt(StorageKeys.updatePromptSkipUntil, skipUntil);
+  }
+
   Future<File?> downloadUpdate(
     AppUpdateInfo update, {
     void Function(int received, int total)? onProgress,
@@ -96,6 +136,15 @@ class UpdateService {
     }
   }
 
+  Future<void> openDownloadsPage() async {
+    if (!await launchUrl(
+      downloadsPageUrl,
+      mode: LaunchMode.externalApplication,
+    )) {
+      throw Exception('无法打开下载页面: $downloadsPageUrl');
+    }
+  }
+
   Future<AppUpdateInfo?> _fetchLatestRelease({String? currentVersion}) async {
     final response = await _dio.getUri<String>(releasesRssUrl);
     final body = response.data;
@@ -119,7 +168,6 @@ class UpdateService {
       final update = await _buildUpdateInfo(release);
       if (update == null) continue;
 
-      if (update.downloadUrl == null) continue;
       return update;
     }
 
@@ -206,8 +254,6 @@ class UpdateService {
     return null;
   }
 
-  bool get _supportsAutoDownload => Platform.isAndroid || Platform.isWindows;
-
   bool _isReleaseAttachment(Uri uri) {
     return uri.path.contains('/releases/download/');
   }
@@ -345,6 +391,16 @@ class UpdateService {
     return Uri.decodeComponent(segment);
   }
 
+  void _setAvailableUpdate(AppUpdateInfo? update) {
+    final previous = _availableUpdate;
+    if (previous?.version == update?.version &&
+        previous?.pageUrl == update?.pageUrl) {
+      return;
+    }
+    _availableUpdate = update;
+    notifyListeners();
+  }
+
   @visibleForTesting
   Future<AppUpdateInfo?> debugFetchLatestRelease() => _fetchLatestRelease();
 }