diff --git a/lib/auth/view/info/unbind_dialogs.dart b/lib/auth/view/info/unbind_dialogs.dart
index db588303..4a74a586 100644
--- a/lib/auth/view/info/unbind_dialogs.dart
+++ b/lib/auth/view/info/unbind_dialogs.dart
@@ -1,13 +1,17 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
+import 'package:we_pei_yang_flutter/auth/network/auth_service.dart';
+import 'package:we_pei_yang_flutter/commons/channel/statistics/umeng_statistics.dart';
 import 'package:we_pei_yang_flutter/commons/network/classes_service.dart';
 import 'package:we_pei_yang_flutter/commons/preferences/common_prefs.dart';
 import 'package:we_pei_yang_flutter/commons/themes/template/wpy_theme_data.dart';
+import 'package:we_pei_yang_flutter/commons/util/router_manager.dart';
 import 'package:we_pei_yang_flutter/commons/util/text_util.dart';
 import 'package:we_pei_yang_flutter/commons/util/toast_provider.dart';
 import 'package:we_pei_yang_flutter/generated/l10n.dart';
 import 'package:we_pei_yang_flutter/gpa/model/gpa_notifier.dart';
+import 'package:we_pei_yang_flutter/main.dart';
 import 'package:we_pei_yang_flutter/schedule/model/course_provider.dart';
 import 'package:we_pei_yang_flutter/schedule/model/exam_provider.dart';
 
diff --git a/lib/auth/view/settings/theme_setting.dart b/lib/auth/view/settings/theme_setting.dart
index c7e60cff..620d422b 100644
--- a/lib/auth/view/settings/theme_setting.dart
+++ b/lib/auth/view/settings/theme_setting.dart
@@ -360,7 +360,17 @@ class _ThemeSettingState extends State<ThemeSetting>
                       ),
                     ),
                   ],
-                )
+                ),
+                Positioned(
+                  left: 0,
+                  right: 0,
+                  bottom: 0.001.sw,
+                  child: Icon(
+                    Icons.drag_handle,
+                    color: Colors.black.withOpacity(0.3),
+                    size: 35.w,
+                  ),
+                ),
               ],
             ),
           ),
diff --git a/lib/commons/themes/template/wpy_theme_data.dart b/lib/commons/themes/template/wpy_theme_data.dart
index f35b8c6d..23373e62 100644
--- a/lib/commons/themes/template/wpy_theme_data.dart
+++ b/lib/commons/themes/template/wpy_theme_data.dart
@@ -2,9 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:we_pei_yang_flutter/commons/themes/scheme/orange_scheme.dart';
 import 'package:we_pei_yang_flutter/commons/themes/scheme/purple_scheme.dart';
 
+import '../scheme/haitang_scheme.dart';
 import '../scheme/dark_scheme.dart';
 import '../scheme/green_scheme.dart';
-import '../scheme/haitang_scheme.dart';
 import '../scheme/light_scheme.dart';
 import '../scheme/red_scheme.dart';
 import '../scheme/yellow_scheme.dart';
diff --git a/lib/commons/widgets/colored_icon.dart b/lib/commons/widgets/colored_icon.dart
index d6634947..9babf3d9 100644
--- a/lib/commons/widgets/colored_icon.dart
+++ b/lib/commons/widgets/colored_icon.dart
@@ -19,6 +19,8 @@ class ColoredIcon extends StatefulWidget {
 class _ColoredIconState extends State<ColoredIcon> {
   ui.Image? _image = null;
 
+  static final _cache = <String, ui.Image>{};
+
   Future<void> loadImageFromAssets(String assetPath) async {
     final ByteData data = await rootBundle.load(assetPath);
     final List<int> bytes = data.buffer.asUint8List();
@@ -26,12 +28,16 @@ class _ColoredIconState extends State<ColoredIcon> {
         await ui.instantiateImageCodec(Uint8List.fromList(bytes));
     final ui.FrameInfo fi = await codec.getNextFrame();
     setState(() => _image = fi.image);
+    _cache[assetPath] = fi.image;
   }
 
   @override
   void initState() {
     super.initState();
-    loadImageFromAssets(widget.path);
+    if (_cache.containsKey(widget.path)) {
+      _image = _cache[widget.path];
+    } else
+      loadImageFromAssets(widget.path);
   }
 
   @override
diff --git a/lib/feedback/view/components/post_card.dart b/lib/feedback/view/components/post_card.dart
index 06a3d6a3..661f1708 100644
--- a/lib/feedback/view/components/post_card.dart
+++ b/lib/feedback/view/components/post_card.dart
@@ -26,6 +26,7 @@ import 'package:we_pei_yang_flutter/main.dart';
 
 import '../../../commons/themes/template/wpy_theme_data.dart';
 import '../../../commons/themes/wpy_theme.dart';
+import '../../../commons/widgets/w_button.dart';
 
 class PostCardNormal extends StatefulWidget {
   /// 标准 PostCard
diff --git a/lib/feedback/view/components/widget/activity_card.dart b/lib/feedback/view/components/widget/activity_card.dart
index 64bc1e2f..e67c886f 100644
--- a/lib/feedback/view/components/widget/activity_card.dart
+++ b/lib/feedback/view/components/widget/activity_card.dart
@@ -14,6 +14,7 @@ import 'package:we_pei_yang_flutter/commons/util/toast_provider.dart';
 import 'package:we_pei_yang_flutter/feedback/view/components/widget/round_taggings.dart';
 import 'package:we_pei_yang_flutter/feedback/view/lake_home_page/lake_notifier.dart';
 import 'package:we_pei_yang_flutter/home/view/web_views/festival_page.dart';
+import 'package:we_pei_yang_flutter/main.dart';
 
 class ActivityCard extends StatefulWidget {
   final double width;
diff --git a/lib/feedback/view/lake_home_page/home_page.dart b/lib/feedback/view/lake_home_page/home_page.dart
index f9b04e00..40ce5878 100644
--- a/lib/feedback/view/lake_home_page/home_page.dart
+++ b/lib/feedback/view/lake_home_page/home_page.dart
@@ -5,6 +5,7 @@ import 'package:extended_tabs/extended_tabs.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:provider/provider.dart';
+import 'package:url_launcher/url_launcher.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 import 'package:we_pei_yang_flutter/commons/preferences/common_prefs.dart';
 import 'package:we_pei_yang_flutter/commons/util/text_util.dart';
diff --git a/lib/feedback/view/lake_home_page/normal_sub_page.dart b/lib/feedback/view/lake_home_page/normal_sub_page.dart
index 2562bdb7..a1a95138 100644
--- a/lib/feedback/view/lake_home_page/normal_sub_page.dart
+++ b/lib/feedback/view/lake_home_page/normal_sub_page.dart
@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'dart:io';
 import 'dart:math';
 
 import 'package:dio/dio.dart';
diff --git a/lib/generated/l10n.dart b/lib/generated/l10n.dart
index c9999fc7..80dfda11 100644
--- a/lib/generated/l10n.dart
+++ b/lib/generated/l10n.dart
@@ -1,7 +1,6 @@
 // GENERATED CODE - DO NOT MODIFY BY HAND
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
-
 import 'intl/messages_all.dart';
 
 // **************************************************************************
diff --git a/lib/main.dart b/lib/main.dart
index a76fa99e..fdc5a938 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'dart:io';
+import 'dart:math';
 
 import 'package:amap_location_fluttify/amap_location_fluttify.dart';
 import 'package:flutter/foundation.dart'
@@ -11,10 +12,11 @@ import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:provider/provider.dart';
+import 'package:we_pei_yang_flutter/commons/themes/template/wpy_theme_data.dart';
 import 'package:we_pei_yang_flutter/commons/font/font_loader.dart';
-import 'package:we_pei_yang_flutter/commons/widgets/colored_icon.dart';
 import 'package:we_pei_yang_flutter/studyroom/model/studyroom_provider.dart';
 import 'package:window_manager/window_manager.dart';
+import 'package:we_pei_yang_flutter/commons/widgets/colored_icon.dart';
 
 import 'auth/network/auth_service.dart';
 import 'auth/network/message_service.dart';
@@ -46,6 +48,7 @@ import 'message/model/message_provider.dart';
 import 'schedule/model/course_provider.dart';
 import 'schedule/model/exam_provider.dart';
 import 'schedule/schedule_providers.dart';
+import 'studyroom/model/studyroom_provider.dart';
 import 'urgent_report/report_server.dart';
 
 /// 应用入口
diff --git a/lib/schedule/network/experiment_service.dart b/lib/schedule/network/experiment_service.dart
index 0bd8242d..fad313bf 100644
--- a/lib/schedule/network/experiment_service.dart
+++ b/lib/schedule/network/experiment_service.dart
@@ -1,3 +1,4 @@
+import 'package:we_pei_yang_flutter/auth/network/auth_service.dart';
 import 'package:we_pei_yang_flutter/commons/network/classes_service.dart';
 import 'package:we_pei_yang_flutter/commons/network/wpy_dio.dart';
 import 'package:we_pei_yang_flutter/schedule/model/course.dart';
diff --git a/lib/schedule/page/course_page.dart b/lib/schedule/page/course_page.dart
index 697017c5..4d8bd677 100644
--- a/lib/schedule/page/course_page.dart
+++ b/lib/schedule/page/course_page.dart
@@ -1,5 +1,4 @@
 import 'dart:io';
-import 'dart:ui' as ui;
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -22,6 +21,7 @@ import 'package:we_pei_yang_flutter/schedule/view/course_detail_widget.dart';
 import 'package:we_pei_yang_flutter/schedule/view/course_dialog.dart';
 import 'package:we_pei_yang_flutter/schedule/view/week_select_widget.dart';
 
+import 'dart:ui' as ui;
 import '../../commons/themes/wpy_theme.dart';
 import '../../commons/util/toast_provider.dart';
 import '../../commons/widgets/w_button.dart';
diff --git a/lib/schedule/view/wpy_course_widget.dart b/lib/schedule/view/wpy_course_widget.dart
index 5893bcf0..8daa6394 100644
--- a/lib/schedule/view/wpy_course_widget.dart
+++ b/lib/schedule/view/wpy_course_widget.dart
@@ -10,6 +10,8 @@ import 'package:we_pei_yang_flutter/schedule/model/course.dart';
 import 'package:we_pei_yang_flutter/schedule/model/course_provider.dart';
 
 import '../../commons/widgets/w_button.dart';
+import "package:we_pei_yang_flutter/schedule/extension/logic_extension.dart"
+    show isBeforeTermStart;
 
 class TodayCoursesWidget extends StatelessWidget {
   @override