Make compact Dock persistent and support week swipes

README.md

@@ -1,10 +1,10 @@
 # TPSchedule
 
-学生课表 APP，Flutter 实现，目前接入电子科技大学研究生系统。Android 0.5.3+11，Android 7.0 及以上。
+学生课表 APP，Flutter 实现，目前接入电子科技大学研究生系统。Android 0.5.4+12，Android 7.0 及以上。
 
 使用用户提供的原始 SVG 图标，蓝色渐变、黄色日历框及白色笔画保持一致；启动画面使用相同配色。0.5.1修复重复启动页闪烁：初始化期间保留原生启动屏，数据就绪后直接显示课表首帧，不再叠加Flutter品牌页或淡出动画。Android12+ 原生启动屏使用同色纯蓝背景及图标，旧版采用蓝色渐变。
 
-三个图标标签页：课表、考试、个人设置。界面统一蓝色，三个页面标题对齐。透明蓝色液态玻璃风格悬浮 Dock 缩窄至264，选中滑块为灰色玻璃，图标为实心蓝色，静止边距为3。支持点击图标或拖动选中滑块切换；按压和拖动时放大、松手弹簧回弹，支持的渲染模式启用实时背景折射。页面切换采用短距离移动与淡入淡出，并保留每页滚动位置。页面本身不支持左右滑动切换。课表和考试页面向下滚动时 Dock 用360ms过渡滑出屏幕底部，向上滚动恢复；个人设置页面保持显示。系统“减少动画”开启时减少切页与回弹动画。
+三个标签页：课表、考试、个人设置。界面统一蓝色，三个页面标题对齐。透明蓝色液态玻璃风格悬浮 Dock 为264×58，选中滑块为灰色玻璃，图标为实心蓝色，静止边距为3。支持点击图标或拖动选中滑块切换；按压和拖动时放大、松手弹簧回弹，支持的渲染模式启用实时背景折射。页面切换采用短距离移动与淡入淡出，并保留每页滚动位置。Dock在三个页面常驻，上下滚动均保持可见；课表左右滑动切换周次，不切换标签页。系统“减少动画”开启时减少切页与回弹动画。
 
 课表周一至周日固定七列同屏，无横向滚动。同节数课程条等长；课程名可省略，老师和教室完整换行，点击查看全部信息。课程条默认长度125%，在「个人设置 → 课表设置 → 课程条长度」调节80%–200%。课前提醒、手机日历及学期设置继续保留。
 
@@ -12,6 +12,8 @@
 
 0.5.3为蓝色图标增加轻微柔光，下方显示“课表、考试、我的”。文字可随系统字号放大，并在Dock固定尺寸内自动适配。灰色静止滑块、按压放大和回弹保持。详见[0.5.3验证记录](docs/tpschedule-0.5.3-validation.md)。
 
+0.5.4主要缩小Dock高度，由68降至58，宽度保持264。Dock改为常驻。课表向左滑动下一周、向右滑动上一周，一次手势只换一周，限制在设置的学期周数内；箭头和“本周”按钮保留。未设置学期开始日时仍提示设置。详见[0.5.4验证记录](docs/tpschedule-0.5.4-validation.md)。
+
 ## 安装与学校登录
 
 安装 `dist/TPSchedule.apk`（release运行模式），或使用 `dist/TPSchedule-debug.apk` 测试。Android包名已按用户确认改为 `com.tpschedule.app`，显示名称为TPSchedule。它与旧 `com.example.hepan_everyday` 是两个独立应用，不能覆盖安装旧RSchedule；旧应用与数据保留，新应用需要重新导入课程并设置日期。

docs/tpschedule-0.5.4-validation.md

@@ -0,0 +1,19 @@
+# TPSchedule Android 0.5.4+12：常驻 Dock 与滑动换周
+
+日期：2026-10-14。
+
+Dock宽度保持264，高度由68降至58，约减少15%。图标由27调整为25，图标与文字间距由3调整为2；“课表、考试、我的”、蓝色微光、灰色静止滑块、按压放大与弹簧回位保留。静止触摸区高度52。
+
+移除课表和考试滚动时隐藏Dock的监听与过渡容器，三个页面的Dock保持常驻。课表横向拖动释放后切换周次：向左下一周、向右上一周；48像素位移或400像素/秒速度触发，一次手势只换一周，限制在1至学期总周数。上下滚动、课程详情点击、箭头和“本周”按钮保留。未设置学期日期时保持设置提示。页面横向滑动不会切换标签页。
+
+实现前的新测试复现旧行为：课表左右滑动不换周，滚动时Dock隐藏。实现后145项完整Flutter测试通过，使用--enable-impeller；静态分析无问题。新测试覆盖不同周课程、左右换周、首尾边界、一次换一周、返回本周、课程点击与未设置学期。既有测试覆盖Dock拖动、点击、尺寸、滚动常驻、系统字号和材质。
+
+玻璃测试按58高度裁剪，预览导出保持3倍等比例尺寸，颜色采样避开图标与名称。蓝红对比下限按既有最强34%灰色覆盖与5%底座覆盖计算：原始210级对比保留约63%，下限130；产品材质参数未更改。精细纹理柔化与较大背景轮廓保留检查继续通过。
+
+独立源码审查确认手势、边界、触摸尺寸与运动参数无功能问题，指出预览导出高度仍为旧值，已修正。
+
+包名com.tpschedule.app及签名配置保留，私钥不更换或导出。
+
+Android API36模拟器覆盖安装通过，原课程保留。实际左右滑动确认第1周→第2周→第1周；向下滚动后Dock三个触摸区域仍在原位置且可点击，点击“我的”进入TPSchedule个人页。课表、下一周、滚动与个人页截图位于dist/screenshots。模拟器使用软件兼容渲染；支持shader的折射效果由像素测试验证。
+
+发布与调试包均构建成功。发布包versionName0.5.4/versionCode12，签名指纹检查通过，与0.5.3证书DER和公钥完全一致。发布APK SHA256：6707D68DBDAA352E4629994104C1D38450D48F9FB51B2458000B1EBA778AA3E2。

mobile/lib/app/hepan_app.dart

@@ -59,31 +59,9 @@ class _Shell extends StatefulWidget {
 
 class _ShellState extends State<_Shell> with WidgetsBindingObserver {
   int _tab = 0;
-  bool _dockHidden = false;
-  double _scrollTravel = 0;
   void _selectTab(int index) {
     if (index == _tab) return;
-    setState(() {
+    setState(() => _tab = index);
-      _tab = index;
-      _dockHidden = false;
-      _scrollTravel = 0;
-    });
-  }
-
-  bool _scroll(ScrollNotification notification) {
-    if (_tab == 2 || notification.metrics.axis != Axis.vertical) return false;
-    if (notification is ScrollUpdateNotification &&
-        notification.dragDetails != null) {
-      final delta = notification.scrollDelta ?? 0;
-      if (delta.sign != _scrollTravel.sign) _scrollTravel = 0;
-      _scrollTravel += delta;
-      final hide = notification.metrics.pixels > 0 && _scrollTravel > 24;
-      final reveal = notification.metrics.pixels <= 0 || _scrollTravel < -16;
-      if ((hide && !_dockHidden) || (reveal && _dockHidden)) {
-        setState(() => _dockHidden = hide);
-      }
-    }
-    return false;
   }
 
   @override
@@ -274,8 +252,6 @@ class _ShellState extends State<_Shell> with WidgetsBindingObserver {
                         ),
                       ),
                     Expanded(
-                      child: NotificationListener<ScrollNotification>(
-                        onNotification: _scroll,
                       child: TabDeck(
                         index: _tab,
                         children: [
@@ -304,7 +280,6 @@ class _ShellState extends State<_Shell> with WidgetsBindingObserver {
                         ],
                       ),
                     ),
-                    ),
                   ],
                 ),
               ),
@@ -313,28 +288,13 @@ class _ShellState extends State<_Shell> with WidgetsBindingObserver {
                 right: 0,
                 bottom: 16 + MediaQuery.paddingOf(context).bottom,
                 child: Center(
-                  child: IgnorePointer(
-                    ignoring: _dockHidden,
-                    child: ExcludeSemantics(
-                      excluding: _dockHidden,
-                      child: AnimatedSlide(
-                        key: const Key('floating-dock'),
-                        offset: _dockHidden
-                            ? const Offset(0, 1.8)
-                            : Offset.zero,
-                        duration: MediaQuery.disableAnimationsOf(context)
-                            ? Duration.zero
-                            : const Duration(milliseconds: 360),
-                        curve: Curves.easeInOutCubic,
                   child: GlassDock(
+                    key: const Key('floating-dock'),
                     selectedIndex: _tab,
                     onSelected: _selectTab,
                   ),
                 ),
               ),
-                  ),
-                ),
-              ),
             ],
           ),
         ),

mobile/lib/features/timetable/timetable_page.dart

@@ -17,6 +17,7 @@ class TimetablePage extends StatefulWidget {
 class _TimetablePageState extends State<TimetablePage> {
   int? _week;
   bool? _wasDemo;
+  double _weekDrag = 0;
   @override
   Widget build(BuildContext context) {
     final c = widget.controller, term = c.visibleSettings.semester;
@@ -33,7 +34,25 @@ class _TimetablePageState extends State<TimetablePage> {
         ? today.subtract(Duration(days: today.weekday - 1))
         : term.firstMonday.add(Duration(days: (week - 1) * 7));
     final sunday = monday.add(const Duration(days: 6));
-    return ListView(
+    return GestureDetector(
+      onHorizontalDragStart: term == null ? null : (_) => _weekDrag = 0,
+      onHorizontalDragUpdate: term == null
+          ? null
+          : (details) => _weekDrag += details.delta.dx,
+      onHorizontalDragCancel: term == null ? null : () => _weekDrag = 0,
+      onHorizontalDragEnd: term == null
+          ? null
+          : (details) {
+              final velocity = details.primaryVelocity ?? 0;
+              if (_weekDrag.abs() < 48 && velocity.abs() < 400) return;
+              final direction = _weekDrag.abs() >= 48 ? _weekDrag : velocity;
+              final next = (week + (direction < 0 ? 1 : -1)).clamp(
+                1,
+                term.totalWeeks,
+              );
+              if (next != week) setState(() => _week = next);
+            },
+      child: ListView(
         key: const PageStorageKey('timetable-scroll'),
         padding: EdgeInsets.fromLTRB(
           8,
@@ -65,7 +84,10 @@ class _TimetablePageState extends State<TimetablePage> {
               padding: const EdgeInsets.fromLTRB(14, 0, 14, 8),
               child: Text(
                 c.snapshot.schoolTerm!.label,
-              style: TextStyle(fontSize: 12, color: ink.withValues(alpha: 0.5)),
+                style: TextStyle(
+                  fontSize: 12,
+                  color: ink.withValues(alpha: 0.5),
+                ),
               ),
             ),
           const SizedBox(height: 10),
@@ -161,7 +183,10 @@ class _TimetablePageState extends State<TimetablePage> {
             Text(
               '点击课程查看完整信息',
               textAlign: TextAlign.center,
-            style: TextStyle(fontSize: 11, color: ink.withValues(alpha: 0.35)),
+              style: TextStyle(
+                fontSize: 11,
+                color: ink.withValues(alpha: 0.35),
+              ),
             ),
           ] else if (c.visibleCourses.isNotEmpty) ...[
             const SizedBox(height: 36),
@@ -179,7 +204,10 @@ class _TimetablePageState extends State<TimetablePage> {
                     const Text(
                       '课表已导入，请设置学期开始日',
                       textAlign: TextAlign.center,
-                    style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
+                      style: TextStyle(
+                        fontSize: 18,
+                        fontWeight: FontWeight.w600,
+                      ),
                     ),
                     const SizedBox(height: 10),
                     Text(
@@ -241,6 +269,7 @@ class _TimetablePageState extends State<TimetablePage> {
             ),
           ],
         ],
+      ),
     );
   }
 }

mobile/lib/widgets/glass_dock.dart

@@ -19,7 +19,7 @@ class GlassDock extends StatefulWidget {
 }
 
 class _GlassDockState extends State<GlassDock> with TickerProviderStateMixin {
-  static const _width = 264.0, _height = 68.0, _inset = 3.0, _travel = 86.0;
+  static const _width = 264.0, _height = 58.0, _inset = 3.0, _travel = 86.0;
   static const _blue = Color(0xFF007AFF);
   late final AnimationController _motion = AnimationController.unbounded(
     vsync: this,
@@ -294,7 +294,7 @@ class _GlassDockState extends State<GlassDock> with TickerProviderStateMixin {
                 duration: const Duration(milliseconds: 130),
                 child: Icon(
                   icon,
-                  size: 27,
+                  size: 25,
                   color: index == _position.round().clamp(0, 2)
                       ? _blue
                       : _blue.withValues(alpha: 0.48),
@@ -310,7 +310,7 @@ class _GlassDockState extends State<GlassDock> with TickerProviderStateMixin {
                   ],
                 ),
               ),
-              const SizedBox(height: 3),
+              const SizedBox(height: 2),
               Flexible(
                 child: FittedBox(
                   fit: BoxFit.scaleDown,

mobile/pubspec.yaml

@@ -1,7 +1,7 @@
 name: hepan_everyday
 description: TPSchedule 学生课表
 publish_to: none
-version: 0.5.3+11
+version: 0.5.4+12
 environment:
   sdk: ^3.13.5
 dependencies:

mobile/test/widgets/dock_motion_test.dart

@@ -54,7 +54,7 @@ void main() {
     await tester.pumpAndSettle();
     final glass = find.byType(GlassRefraction);
     expect(glass, findsNWidgets(2));
-    expect(tester.getSize(glass.first), const Size(264, 68));
+    expect(tester.getSize(glass.first), const Size(264, 58));
     expect(
       tester.widget<GlassRefraction>(glass.first).strength,
       greaterThan(0),
@@ -101,9 +101,9 @@ void main() {
     expect(tester.getSize(lens).width, closeTo(resting.width, 0.5));
     expect(tester.getSize(lens).height, closeTo(resting.height, 0.5));
   });
-  testWidgets(
+  testWidgets('Dock stays stationary and tappable while scrolling timetable', (
-    'Dock stays visible while sliding down instead of abruptly fading',
+    tester,
-    (tester) async {
+  ) async {
     tester.view.physicalSize = const Size(390, 844);
     tester.view.devicePixelRatio = 1;
     addTearDown(tester.view.resetPhysicalSize);
@@ -129,14 +129,13 @@ void main() {
         ? 1.0
         : tester.widget<FadeTransition>(fading.first).opacity.value;
     expect(opacity, greaterThan(0.95));
-      expect(tester.getRect(dock).top, greaterThan(before.top));
+    expect(tester.getRect(dock), before);
     expect(tester.getRect(dock).top, lessThan(844));
     await gesture.up();
     await tester.pumpAndSettle();
-      expect(dock.hitTestable(), findsNothing);
+    expect(dock.hitTestable(), findsOneWidget);
     c.dispose();
-    },
+  });
-  );
 }
 
 Widget _dock({bool reduceMotion = false}) {

mobile/test/widgets/glass_dock_test.dart

@@ -9,9 +9,9 @@ import 'navigation_test.dart' show uiController;
 
 void main() {
   setUpAll(tzdata.initializeTimeZones);
-  testWidgets(
+  testWidgets('dock drags switch tabs while body swipes only change week', (
-    'glass cursor drags in both directions, taps work, body swipes do not navigate',
+    tester,
-    (tester) async {
+  ) async {
     final c = uiController();
     await c.initialize();
     await c.showDemo();
@@ -27,6 +27,7 @@ void main() {
     expect(tester.getRect(find.text('周日')).right, lessThanOrEqualTo(800));
     await tester.drag(find.text('周三'), const Offset(-250, 0));
     await tester.pumpAndSettle();
+    expect(find.text('第 2 周'), findsOneWidget);
     expect(find.text('登录学校账户'), findsNothing);
     await tester.drag(
       find.byKey(const Key('dock-cursor')),
@@ -47,8 +48,7 @@ void main() {
     await tester.pumpAndSettle();
     expect(find.text('登录学校账户'), findsOneWidget);
     c.dispose();
-    },
+  });
-  );
   testWidgets('cancelled cursor drag keeps selected tab', (tester) async {
     int selected = 0;
     await tester.pumpWidget(

mobile/test/widgets/glass_material_test.dart

@@ -19,10 +19,10 @@ void main() {
       preview: true,
     );
     // Sample beside the visible label, away from icon glow and glass rims.
-    final selected = _channel(resting, 22, 52, 0);
+    final selected = _channel(resting, 16, 43, 0);
-    final base = _channel(resting, 160, 52, 0);
+    final base = _channel(resting, 160, 43, 0);
     expect(base - selected, greaterThan(20));
-    expect((_channel(resting, 22, 52, 2) - selected).abs(), lessThan(12));
+    expect((_channel(resting, 16, 43, 2) - selected).abs(), lessThan(12));
     final held = await _render(
       tester,
       GlassDock(selectedIndex: 0, onSelected: (_) {}),
@@ -30,7 +30,7 @@ void main() {
       held: true,
       preview: true,
     );
-    expect(_channel(held, 22, 52, 0) - selected, greaterThan(18));
+    expect(_channel(held, 16, 43, 0) - selected, greaterThan(18));
   });
   testWidgets(
     'glass softens fine background detail without whitening its colour',
@@ -61,12 +61,14 @@ void main() {
       );
       // Below the symbol and away from the rim, the selected lens should retain
       // this saturated cyan backdrop while applying the new resting grey tint.
-      final red = _channel(pixels, 22, 52, 0);
+      final red = _channel(pixels, 16, 40, 0);
-      final green = _channel(pixels, 22, 52, 1);
+      final green = _channel(pixels, 16, 40, 1);
-      final blue = _channel(pixels, 22, 52, 2);
+      final blue = _channel(pixels, 16, 40, 2);
       expect(red, lessThan(85));
       expect(green - red, greaterThan(95));
-      expect(blue - red, greaterThan(140));
+      // The strongest resting tint (34%) and base veil (5%) retain about 63%
+      // of the source's 210-level blue/red contrast, including the shorter rim.
+      expect(blue - red, greaterThan(130));
     },
   );
 
@@ -81,7 +83,7 @@ void main() {
     );
     for (final start in [32, 160]) {
       final reds = [
-        for (var x = start; x < start + 20; x++) _channel(pixels, x, 60, 0),
+        for (var x = start; x < start + 20; x++) _channel(pixels, x, 50, 0),
       ];
       final contrast =
           reds.reduce((a, b) => a > b ? a : b) -
@@ -104,7 +106,7 @@ void main() {
       );
       for (final start in [24, 160]) {
         final reds = [
-          for (var x = start; x < start + 40; x++) _channel(pixels, x, 60, 0),
+          for (var x = start; x < start + 40; x++) _channel(pixels, x, 50, 0),
         ];
         final contrast =
             reds.reduce((a, b) => a > b ? a : b) -
@@ -173,6 +175,7 @@ Future<ByteData> _render(
   addTearDown(tester.view.resetPhysicalSize);
   addTearDown(tester.view.resetDevicePixelRatio);
   final key = GlobalKey(), glassKey = GlobalKey();
+  final height = glass is GlassDock ? 58 : 68;
   await tester.pumpWidget(
     RepaintBoundary(
       key: key,
@@ -183,7 +186,7 @@ Future<ByteData> _render(
             child: SizedBox(
               key: glassKey,
               width: 264,
-              height: 68,
+              height: height.toDouble(),
               child: Stack(
                 children: [
                   Positioned.fill(
@@ -235,11 +238,11 @@ Future<ByteData> _render(
       ui.Canvas(recorder).drawImageRect(
         image,
         region,
-        const Rect.fromLTWH(0, 0, 792, 204),
+        Rect.fromLTWH(0, 0, 792, height * 3.0),
         Paint()..filterQuality = FilterQuality.high,
       );
       final picture = recorder.endRecording();
-      final previewImage = await picture.toImage(792, 204);
+      final previewImage = await picture.toImage(792, height * 3);
       final png = (await previewImage.toByteData(
         format: ui.ImageByteFormat.png,
       ))!;
@@ -254,8 +257,8 @@ Future<ByteData> _render(
       previewImage.dispose();
       picture.dispose();
     }
-    final cropped = ByteData(264 * 68 * 4);
+    final cropped = ByteData(264 * height * 4);
-    for (var y = 0; y < 68; y++) {
+    for (var y = 0; y < height; y++) {
       for (var x = 0; x < 264; x++) {
         final source =
             ((region.top.round() + y) * image.width + region.left.round() + x) *

mobile/test/widgets/rschedule_navigation_test.dart

@@ -8,9 +8,7 @@ import 'navigation_test.dart' show uiController;
 
 void main() {
   setUpAll(tzdata.initializeTimeZones);
-  testWidgets('three icon tabs and vertical scroll hide and restore Dock', (
+  testWidgets('three tabs remain reachable while pages scroll', (tester) async {
-    tester,
-  ) async {
     tester.view.physicalSize = const Size(390, 844);
     tester.view.devicePixelRatio = 1;
     addTearDown(tester.view.resetPhysicalSize);
@@ -30,7 +28,7 @@ void main() {
     expect(find.bySemanticsLabel('考试'), findsOneWidget);
     await tester.drag(find.text('周三'), const Offset(0, -200));
     await tester.pumpAndSettle();
-    expect(find.bySemanticsLabel('考试').hitTestable(), findsNothing);
+    expect(find.bySemanticsLabel('考试').hitTestable(), findsOneWidget);
     await tester.drag(find.byType(ListView).first, const Offset(0, 100));
     await tester.pumpAndSettle();
     expect(find.bySemanticsLabel('考试').hitTestable(), findsOneWidget);

mobile/test/widgets/week_swipe_test.dart

@@ -0,0 +1,101 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:timezone/data/latest.dart' as tzdata;
+import 'package:hepan_everyday/app/app_controller.dart';
+import 'package:hepan_everyday/domain/app_snapshot.dart';
+import 'package:hepan_everyday/domain/app_settings.dart';
+import 'package:hepan_everyday/domain/schedule_engine.dart';
+import 'package:hepan_everyday/features/timetable/timetable_page.dart';
+
+import '../support/fakes.dart';
+
+AppController _controller({bool hasSemester = true}) {
+  Course lesson(int week) => Course(
+    id: 'week-$week',
+    name: '第$week周课程',
+    teacher: '测试教师',
+    room: 'A101',
+    weekday: 3,
+    startPeriod: 1,
+    endPeriod: 2,
+    weeks: {week},
+    source: CourseSource.file,
+  );
+  return AppController(
+    MemoryStore(
+      AppSnapshot(
+        courses: [lesson(1), lesson(2), lesson(3)],
+        settings: AppSettings(
+          semester: hasSemester
+              ? Semester(startDate: DateTime(2026, 10, 12), totalWeeks: 3)
+              : null,
+        ),
+      ),
+    ),
+    FakeNotifications(),
+    FakeCalendar(),
+    () => DateTime.utc(2026, 10, 14),
+  );
+}
+
+Future<void> _open(WidgetTester tester, AppController controller) async {
+  await controller.initialize();
+  addTearDown(controller.dispose);
+  await tester.pumpWidget(
+    MaterialApp(
+      home: Scaffold(body: TimetablePage(controller: controller)),
+    ),
+  );
+  await tester.pumpAndSettle();
+}
+
+void main() {
+  setUpAll(tzdata.initializeTimeZones);
+  testWidgets(
+    'horizontal course swipe changes week and course taps still open',
+    (tester) async {
+      await _open(tester, _controller());
+      expect(find.text('第 1 周'), findsOneWidget);
+      expect(find.text('第1周课程'), findsOneWidget);
+      await tester.drag(find.text('第1周课程'), const Offset(-180, 0));
+      await tester.pumpAndSettle();
+      expect(find.text('第 2 周'), findsOneWidget);
+      expect(find.text('第1周课程'), findsNothing);
+      expect(find.text('第2周课程'), findsOneWidget);
+      await tester.tap(find.text('第2周课程'));
+      await tester.pumpAndSettle();
+      expect(find.text('知道了'), findsOneWidget);
+      await tester.tap(find.text('知道了'));
+      await tester.pumpAndSettle();
+      await tester.drag(find.text('周三'), const Offset(180, 0));
+      await tester.pumpAndSettle();
+      expect(find.text('第 1 周'), findsOneWidget);
+    },
+  );
+  testWidgets('one swipe advances one week and stops at semester boundaries', (
+    tester,
+  ) async {
+    await _open(tester, _controller());
+    await tester.drag(find.text('周三'), const Offset(300, 0));
+    await tester.pumpAndSettle();
+    expect(find.text('第 1 周'), findsOneWidget);
+    for (final week in [2, 3, 3]) {
+      await tester.drag(find.text('周三'), const Offset(-300, 0));
+      await tester.pumpAndSettle();
+      expect(find.text('第 $week 周'), findsOneWidget);
+    }
+    await tester.tap(find.text('本周'));
+    await tester.pumpAndSettle();
+    expect(find.text('第 1 周'), findsOneWidget);
+  });
+  testWidgets('swiping an imported timetable without a semester keeps prompt', (
+    tester,
+  ) async {
+    await _open(tester, _controller(hasSemester: false));
+    await tester.drag(find.byType(TimetablePage), const Offset(-180, 0));
+    await tester.pumpAndSettle();
+    expect(find.text('课表已导入，请设置学期开始日'), findsOneWidget);
+    expect(find.text('第 2 周'), findsNothing);
+    expect(tester.takeException(), isNull);
+  });
+}